HAL1870UA [TDK]
线性霍尔传感器;
TDK ELECTRONICS 
Hardware
Documentation
Data Sheet
®
HAL 1870
Programmable Linear Hall-Effect Sensor
with PWM Output
Edition Oct. 23, 2020
DSH000208_001EN
DATA SHEET
HAL 1870
Copyright, Warranty, and Limitation of Liability
The information and data contained in this document are believed to be accurate and reli-
able. The software and proprietary information contained therein may be protected by
copyright, patent, trademark and/or other intellectual property rights of TDK-Micronas. All
rights not expressly granted remain reserved by TDK-Micronas.
TDK-Micronas assumes no liability for errors and gives no warranty representation or
guarantee regarding the suitability of its products for any particular purpose due to
these specifications.
By this publication, TDK-Micronas does not assume responsibility for patent infringements
or other rights of third parties which may result from its use. Commercial conditions, prod-
uct availability and delivery are exclusively subject to the respective order confirmation.
Any information and data which may be provided in the document can and do vary in
different applications, and actual performance may vary over time.
All operating parameters must be validated for each customer application by customers’
technical experts. Any mention of target applications for our products is made without a
claim for fit for purpose as this has to be checked at system level.
Any new issue of this document invalidates previous issues. TDK-Micronas reserves
the right to review this document and to make changes to the document’s content at any
time without obligation to notify any person or entity of such revision or changes. For
further advice please contact us directly.
Do not use our products in life-supporting systems, military, aviation, or aerospace
applications! Unless explicitly agreed to otherwise in writing between the parties,
TDK-Micronas’ products are not designed, intended or authorized for use as compo-
nents in systems intended for surgical implants into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the
product could create a situation where personal injury or death could occur.
No part of this publication may be reproduced, photocopied, stored on a retrieval sys-
tem or transmitted without the express written consent of TDK-Micronas.
TDK-Micronas Trademarks
– HAL
Third-Party Trademarks
All other brand and product names or company names may be trademarks of their
respective companies.
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
2
DATA SHEET
HAL 1870
Contents
Page
Section
Title
4
5
5
1.
1.1.
1.2.
Introduction
Major Applications
Features
6
2.
Ordering Information
6
2.1.
Device-Specific Ordering Codes
7
3.
Functional Description
7
3.1.
General Function
8
9
3.2.
Digital Signal Processing and EEPROM
Digital Output Register
Output Scaling Register
3.2.1.
3.2.2.
3.2.3.
3.2.4.
3.2.5.
3.2.6.
3.3.
10
11
11
14
15
16
17
17
18
20
20
20
Micronas ID Number Registers
Customer Setup 1 Registers
Customer Setup 2 Register
Signal Path
On-Board Diagnostic Features
The PWM Module
3.4.
3.4.1.
3.4.2.
3.5.
Output Polarity and Startup Behavior
Output/Magnetic-Field Polarity
Sensor Calibration
3.5.1.
3.5.2.
General Procedure for Development or Evaluation Purposes
Locking the Sensor
21
21
25
25
25
26
27
27
28
31
32
33
4.
Specifications
Outline Dimensions
4.1.
4.2.
4.3.
4.4.
4.5.
4.6.
4.7.
4.8.
4.9.
4.10.
4.10.1.
Soldering, Welding, and Assembly
Pin Connections and Short Descriptions
Dimensions of Sensitive Area
Absolute Maximum Ratings
Storage and Shelf Life
Recommended Operating Conditions
Characteristics
Power-On Reset / Undervoltage Detection
Magnetic Characteristics
Definition of Sensitivity Error ES
34
34
34
35
36
5.
Application Notes
Ambient Temperature
EMC
Application Circuit
Temperature Compensation
5.1.
5.2.
5.3.
5.4.
37
37
38
38
6.
Programming of the Sensor
Programming Interface
Programming Environment and Tools
Programming Information
6.1.
6.2.
6.3.
39
7.
Document History
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DATA SHEET
HAL 1870
Programmable Linear Hall-Effect Sensor with PWM Output
1. Introduction
The HAL 1870 is a universal programmable Hall-effect sensor with pulse-width modula-
tion (PWM) output. The signal value is proportional to the magnetic flux density applied
to the sensor surface. The sensor can be used for magnetic-field measurements such
as current measurements and detection of mechanical movement, such as small-angle
or distance measurements. This robust sensor can be used in harsh electrical and
mechanical environments.
Major characteristics like magnetic-field range, sensitivity, offset (signal voltage at zero
magnetic field) and the temperature coefficients are programmable in a non-volatile
memory. Several output signal clamping levels can be programmed. Diagnostic fea-
tures are implemented to indicate various fault conditions like undervoltage, under-/
overflow or overtemperature.
The HAL 1870 is programmable by modulating the voltage with a serial telegram on the
sensor’s output pin or supply pin. No additional programming pin is needed. Several sen-
sors on the same supply line can be programmed individually (communication through
OUT pins). This programmability allows a 2-point calibration by adjusting the output signal
directly to the input signal, such as mechanical angle, distance or current.
Individual adjustment of each sensor during the customer’s manufacturing process is
possible. With this calibration procedure, the tolerance of the sensor, the magnet and
the mechanical positioning can be compensated in the final assembly.
The spinning-current offset compensation leads to stable magnetic characteristics over
supply voltage and temperature. Furthermore, the first-order and second-order temper-
ature coefficients of the sensor sensitivity can be used to compensate the temperature
drift of all common magnetic materials. This enables operation over the full temperature
range with high accuracy.
The calculation of the individual sensor characteristics and the programming of the
EEPROM memory can easily be done with a PC and the application kit from
TDK-Micronas.
The sensor is designed for industrial and automotive applications, is AEC-Q100 quali-
fied, and operates in the junction temperature range from –40 °C up to 170 °C. The
HAL 1870 is available in the very small leaded packages TO92UA-1 and TO92UA-2.
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DATA SHEET
HAL 1870
1.1. Major Applications
Thanks to the sensors’ robust and cost-effective design, the HAL 1870 is the optimal
system solution for applications such as:
– Small-angle or linear position measurements
– Gear position detection in transmission application
– Current sensing for battery management
– Rotary selector
1.2. Features
– Up to 2 kHz PWM output proportional to the magnetic field
• Selectable PWM polarity
• Selectable start-up behavior
– Digital signal processing
– Continuous measurement ranges from 20 mT to 160 mT
– Selectable clamping levels with selectable diagnosis
– Comprehensive diagnostic feature set
– Lock function and built-in redundancy for EEPROM memory
– Programmable temperature characteristics for matching all common magnetic materials
– Programming via output pin or supply voltage modulation
– On-chip temperature compensation
– Active offset compensation
– Operates from 40 °C up to 170 °C junction temperature
– Operates from 4.5 V up to 5.5 V supply voltage in specification
– Operates with static and dynamic magnetic fields up to 5 kHz
– Selectable sampling frequency (8 kSps or 16 kSps)
– Overvoltage and reverse-voltage protection at VSUP pin
– Magnetic characteristics extremely robust against mechanical stress
– Short-circuit protected open-drain output
– EMC and ESD optimized design
– AEC-Q100 qualified
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DATA SHEET
HAL 1870
2. Ordering Information
A Micronas device is available in a variety of delivery forms. They are distinguished by a
specific ordering code:
XXXNNNNPA-T-C-P-Q-SP
Further Code Elements
Temperature Range
Package
Product Type
Product Group
Fig. 2–1: Ordering code principle
For a detailed information, please refer to the brochure: “Sensors and Controllers:
Ordering Codes, Packaging, Handling”.
2.1. Device-Specific Ordering Codes
HAL 1870 is available in the following package and temperature variants.
Table 2–1: Available packages
Package Code (PA)
Package Type
UA
TO92UA
Table 2–2: Available temperature ranges
Temperature Code (T)
Temperature Range
T = 40 °C to 170 °C
A
J
The relationship between ambient temperature (TA) and junction temperature (TJ) is
explained in Section 5.1. on page 34.
For available variants for Configuration (C), Packaging (P), Quantity (Q), and Special
Procedure (SP) please contact TDK-Micronas.
Table 2–3: Available ordering codes and corresponding package marking
Available Ordering Codes
Package Marking
HAL 1870UA-A-[C-P-Q-SP]
1870A
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DATA SHEET
HAL 1870
3. Functional Description
3.1. General Function
The HAL 1870 is a monolithic integrated circuit (IC) which provides a PWM output sig-
nal proportional to the magnetic flux through the Hall plate and proportional to the sup-
ply voltage (ratiometric behavior).
The Hall IC is sensitive to magnetic north and south polarity. This Hall voltage is converted
to a digital value, processed in the Digital Signal Processing unit (DSP) according to the
settings of the EEPROM registers, converted into a PWM signal and output by an open-
drain NMOS transistor. Selectable clamping levels for the output signal as well as diagnos-
tic features are available. The function and the parameter for the DSP are explained in
Section 3.2. on page 8. Internal temperature compensation circuitry and spinning-current
offset compensation enable operation over the full temperature range with minimal degra-
dation in accuracy and offset. The circuitry also rejects offset shifts due to mechanical
stress from the package. In addition, the sensor IC is equipped with devices for overvolt-
age and reverse polarity protection at supply pin.
VSUP
Internally
Stabilized
Supply and
Protection
Devices
Temperature
Dependent
Bias
Undervoltage
Detection
Overtemperature
Detection
Protection
Devices
Oscillator
over-under flow
Diagnose
45
Digital
Signal
Processing
Open-Drain
Output
OUT
Switched
Hall Plate
A/D
Converter
PWM
Function
Calibration Control
GND
Fig. 3–1: HAL 1870 block diagram
The IC can be programmed via supply or output pin voltage modulation. After detecting
a command, the sensor reads or writes the memory and answers with a digital signal on
the output pin. As long as the LOCK register is not set, the output characteristic can be
adjusted by programming the EEPROM registers. The LOCK register disables the pro-
gramming of the EEPROM memory. This register cannot be reset.
Furthermore, HAL 1870 features an internal error detection. The following error modes
can be detected: over-/underflow in adder or multiplier, over-/underflow in A/D converter
(ADC) and overtemperature.
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DATA SHEET
HAL 1870
3.2. Digital Signal Processing and EEPROM
Hall Plate
DIAGNOSIS
DSP
Output Controller
PWM
A/D
Converter
PWM
Module
TC, TC_FINE
TCSQ
OFFSET
OFFSET_ALIGN
CLAMP_SP
CLEVEL
EN_ERC_HI
CLAMP_ERC
PWM_FREQ
PWM_POL
PWM_STARTUP
MAG_RANGE
SENSITIVITY
LOCK
Customer-programmable Parameters
Fig. 3–2: Details of Programming Parameter and Digital Signal Processing
Table 3–1: Cross reference table for EEPROM register and sensor parameter
EEPROM Register Parameter
Customer Setup 1 DSDOUBLE
CLEVEL
Data Bits Function
1
2
1
Sampling frequency selection
Output clamping values selection
EN_ERC_HI
Set signal path’s overflow and underflow
behavior
TC_FINE
PWM_FREQ
1
2
1
1
1
1
1
1
Fine adjustment of linear temperature coefficient
PWM frequency selection
PWM_POL
PWM polarity selection
PWM_STARTUP
Customer Setup 2 LOCK
CLAMP_SP
PWM start-up behavior
Customer lock
Activates unbalanced clamping levels
Activates Error Flag on PWM output
CLAMP_ERC
OFFSET_
ALIGN
Magnetic offset alignment bit (MSB or LSB
aligned)
TCSQ
5
Quadratic temperature coefficient
Linear temperature coefficient
Available magnetic ranges
TC
5
MAG_RANGE
3
Output Scaling
SENSITIVITY
OFFSET
8
Magnetic sensitivity
8
Magnetic offset
Micronas ID1
Micronas ID2
MIC_ID_1
MIC_ID_2
16
16
Micronas production information (read only)
Micronas production information (read only)
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DATA SHEET
HAL 1870
Note
For more information on the registers and the memory map of the
HAL 1870, please refer to the application note “HAL 1870/1880/1890 User
Manual”.
The DSP is a key function of this sensor and performs the signal conditioning. The
parameters for the DSP are stored in the EEPROM registers. Details are shown in
Fig. 3–2 on page 8.
The measurement data can be readout from the digital output register MDATA.
3.2.1. Digital Output Register
MDATA register
This 16-bit register delivers the actual digital value of the applied magnetic field after the
signal processing. This register can only be read out, and it is the basis for the calibra-
tion procedure of the sensor in the customer application. Only 12 bits of the register
contain valid data. The MDATA range is 0 to 4096, limited by clamping settings.
Note
The MDATA range (or MDATA bandwidth) depends on the PWM output
frequency fPWM
:
f
#bit
MDATA
PWM
Range
0:4096
0:4096
0:2048
0:1024
0.25 kHz
0.5 kHz
1 kHz
12
12
11
10
2 kHz
Note
The accuracy depends on the sampling frequency fS:
f
#bit
10
S
8 kHz
16 kHz
10
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DATA SHEET
HAL 1870
The area in the EEPROM accessible to the customer consists of registers with a size of
16 bits each.
For SENSITIVITY >0 the MDATA value will increase for negative magnetic fields (i.e.
when a north pole is applied perpendicular to the branded side of the package).
Note
During application design, it shall be taken into consideration that the
MDATA value should not saturate in the full operational range of the specific
application.
3.2.2. Output Scaling Register
The Output Scaling register contains the bits for magnetic sensitivity (SENSITIVITY)
and magnetic offset (OFFSET).
SENSITIVITY
The SENSITIVITY bits define the parameter for the multiplier in the DSP and is program-
mable between [2...2] in steps of 0.0156. SENSITIVITY = 1 (at Offset = 0) corresponds
to full-scale (FS) of the output signal if the A/D converter value has reached the full-scale
value. The SENSITIVITY register has a resolution of 8 bits.
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DATA SHEET
HAL 1870
OFFSET
The OFFSET bits define the parameter for the adder in the DSP.
The customer can decide if the offset is MSB or LSB aligned. The MSB or LSB align-
ment is enabled by an additional offset alignment bit (OFFSET_ALIGN). In case this bit
is set to 1, the offset is programmable from 25%DC up to 25%DC.
If the OFFSET_ALIGN bit is set to zero, then the offset covers only 1/8 of the full-scale
(6.25%DC up to 6.25%DC) but with a finer step size. The customer can adjust the off-
set symmetrically around 50% of VSUP. The OFFSET register can be set with 8-bit resolu-
tion.
3.2.3. Micronas ID Number Registers
Micronas ID Number registers contain 16 bits each. TDK-Micronas uses the registers to
store production information like wafer position, wafer number and production lot num-
ber. These two registers can be read by the customer.
3.2.4. Customer Setup 1 Registers
The Customer Setup 1 register contains the bits to select the sampling frequency, to
enable/disable the High Error Band for error indication, to define the output signal
clamping levels and to adjust the PWM signal.
PWM_FREQ
The 2-bit PWM_FREQ allows to select the PWM frequency between four different
values: 250 Hz, 500 Hz, 1 kHz, and 2 kHz.
PWM_STARTUP
The bit PWM_STARTUP determines the output start-up behavior of HAL 1870 during
t
startup. The selection of PWM polarity (PWM_POL) has also an influence.
When PWM_STARTUP = 0, the output is VOUT_H with PWM_POL = 0 or 30% duty
cycle with PWM_POL = 1.
When PWM_STARTUP = 1, the output is VOUT_L with PWM_POL = 0 or 70% duty
cycle with PWM_POL = 1.
PWM_POL
The bit PWM_POL determines the polarity of the PWM signal. When PWM_POL = 0,
the PWM signal starts with a falling edge. When PWM_POL = 1, it starts with a rising
edge.
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DATA SHEET
HAL 1870
DSDOUBLE
The bit DSDOUBLE allows to double the sampling frequency. The permitted values are
8 kSps and 16 kSps, corresponding to a bandwidth of 2.5 kHz and 5 kHz.
CLEVEL
The 2-bit CLEVEL together with CLAMP_SP select the clamping levels, i.e. the maxi-
mum and minimum output voltage levels of the PWM output. The following choices are
available {CLAMP_SP:CLEVEL}:
Table 3–2: Clamping level definition
CLAMP_SP CLEVEL
Clamping Level (%DC)
high
low
0
0
0
0
1
1
1
1
00
01
10
11
00
01
10
11
0 (clamping disabled)
100 (clamping disabled)
5
95
90
85
90
95
90
80
10
15
5
10
20
10
Clamping is normally not considered as an error. However, the user is able to activate
the clamping error code by setting the CLAMP_ERC bit of the Customer Setup 1 register.
In that case the output will be forced to an error state as soon as the output signal
reaches the programmed clamping levels. The resulting clamping behavior therefore
depends on the selection of the clamping levels, the setting of the CLAMP_ERC bit, and
the setting of the EN_ERC_HI bit (Error Code Selection). All possible clamping varia-
tions are shown in Fig. 3–3.
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DATA SHEET
HAL 1870
PWM Duty Cycle
High
Clamping Level
62.5 %DC
55 %DC
Low
Clamping Level
12.5 %DC
Magnetic Field Amplitude
PWM frequency
No Clamping Levels selected
Clamping Levels selected:
CLAMP_ERC = 0
CLAMP_ERC = 1 & EN_ERC_HI = 0
CLAMP_ERC = 1 & EN_ERC_HI = 1
fPWM
0.5 fPWM
Magnetic Field Amplitude
Fig. 3–3: HAL 1870 clamping behavior
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DATA SHEET
HAL 1870
3.2.5. Customer Setup 2 Register
Customer Setup 2 register contains the bits for magnetic range (MAG_RANGE), linear
and quadratic temperature coefficients (TC and TCSQ), magnetic offset alignment
(OFFSET_ALIGN), unbalanced clamping levels (CLAMP_SP) and the customer lock bit.
MAG_RANGE
The MAG_RANGE bits are used to set the magnetic measurement range. The following
eight measurement ranges are available:
Table 3–3: MAG_RANGE bit definition
Magnetic-Field Range
20 mT...20 mT
Bit Setting Comment
0
1
2
3
4
5
6
7
40 mT...40 mT
60 mT...60 mT
80 mT...80 mT
100 mT...100 mT
120 mT...120 mT
140 mT...140 mT
160 mT...160 mT
TC and TCSQ
The temperature dependence of the magnetic sensitivity can be adapted to different
magnetic materials in order to compensate for the change of the magnetic sensitivity
with temperature. The adaption is done by programming the TC (linear temperature
coefficient) and the TCSQ registers (quadratic temperature coefficient). Thereby, the
slope and the curvature of the temperature dependence of the magnetic sensitivity can
be matched to the magnet and the sensor assembly. As a result, the output signal char-
acteristic can be fixed over the full temperature range. The sensor can compensate for
linear temperature coefficients ranging from about 3100 ppm/K up to 2550 ppm/K and
quadratic coefficients from about
7 ppm/K2 to 15 ppm/K2 (typical range). Min. and max. values for the quadratic temper-
ature coefficient depend on the linear temperature coefficient. Please refer to
Section 5.4. on page 36 for the recommended settings for different linear temperature
coefficients.
Magnetic Offset Alignment Bit (OFFSET_ALIGN)
Please refer to Section 3.2.2. on page 10 (OFFSET).
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DATA SHEET
HAL 1870
LOCK
By setting this 1-bit register, all registers will be locked, and the EEPROM content can
not be changed anymore. The LOCK bit is active after the first power-off and power-on
sequence after setting the LOCK bit.
Warning This register cannot be reset!
3.2.6. Signal Path
BIN (mT)
ADCOUT (LSB)
PWM (%DC)
MDATA (LSB)
100 %DC
100 %FS
4096 LSB
+BRANGE
90 %DC
BCP1
BCP2
10 %DC
0 %DC
0 %FS
0 LSB
-BRANGE
MAG_RANGE
TC, TC_FINE & TCSQ
Clamping Level
OFFSET & OFFSET_ALIGN
SENSITIVITY
CLEVEL & CLAMP_SP
BIN
: Magnetic Field Input
BRANGE : Magnetic Range
BCP1/2 : Magnetic Field at Calibration Point 1/2
ADCOUT: Output of Analog/Digital-Converter
%DC : Percentage of Duty Cycle
Fig. 3–4: Signal path of HAL 1870 (CLAMP_ERC=0, FPWM=0.5 kHz, MDATA=12 bits)
Fig. 3–4 shows the signal path and signal processing of HAL 1870. The measurement
output value MDATA is calculated with the output value of the ADC by the following
equation.
MDATA SENSITIVITY ADCOUT + OFFSET
The register values OFFSET and SENSITIVITY are two’s complement encoded 8-bit
values (see Section 3.2.5. on page 14).
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DATA SHEET
HAL 1870
3.3. On-Board Diagnostic Features
The HAL 1870 features following diagnostic functions:
– Thermal supervision of the output stage (overcurrent, short circuit, etc.)
The sensor switches the output to tristate if overtemperature is detected by the ther-
mal supervision.
– Undervoltage detection with internal reset
The occurrence of an undervoltage is indicated immediately by switching the output to
error state (either low for PWM_POL=1 or high for PWM_POL=0). The output will start
up after the end of an undervoltage detection event depending on the
PWM_STARTUP and PWM_POL setting like described in Fig. 3–6.
– Magnetic signal amplitude out of range (overflow or underflow in ADC)
– Over-/underflow in adder or multiplier
These faults are visible at the output as long as present and will force the output to
error state (half of the selected PWM frequency and specific duty cycle) depending on
the source of the faults, and the customer parameter settings, such as the sign of the
sensitivity and the Error Code Selection bit (see Table 3–4).
Table 3–4: Error code source and settings combinations
Settings
Source
Sign of
EN_ERC_HI A/D Converter
Adder
Multiplier
SENSITIVITY
Underflow Overflow Underflow Overflow Underflow Overflow
+
1
0
12.5%DC 85%DC
12.5%DC 85%DC
12.5%DC 85%DC
85%DC
12.5%DC 85%DC 12.5%DC
12.5%DC
12.5%DC
12.5%DC
Note: In case of error code, the PWM frequency is half of the selected PWM frequency
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DATA SHEET
HAL 1870
3.4. The PWM Module
HAL 1870 transmits the magnetic-field information by sending a PWM signal.
A pulse-width modulated (PWM) signal consists of successive square-wave pulses.
The information is coded in the ratio between high time “thigh” and signal period “tperiod”.
thigh
---------------
duty cycle =
tperiod
After reset, the output is recessive high. The transmission starts after the first valid out-
put value has been calculated.
In case of a reset or if overtemperature is detected, the output transistor is switched off.
The output state is then high impedance (HiZ). The transistor is enabled again if the
overtemperature condition disappears or after the startup time tstartup has elapsed when
a reset occurred.
3.4.1. Output Polarity and Startup Behavior
The start-up behavior (PWM_STARTUP) and the polarity of the PWM (PWM_POL) sig-
nal are selectable by the customer. The different combinations are shown in Fig. 3–6.
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DATA SHEET
HAL 1870
3.4.2. Output/Magnetic-Field Polarity
Applying a south-pole magnetic field perpendicular to the branded side of the package
will increase the duty cycle (for SENSITIVITY <0 and PWM_POL=0) from the quiescent
(offset) value. A north-pole magnetic field will decrease the duty-cycle value.
The output logic will be inverted for a SENSITIVITY setting >0 or PWM_POL=1.
Fig. 3–5: Duty cycle depending on magnet polarity and position
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DATA SHEET
HAL 1870
Voltage
(V)
5
VPOR_LH
VSUP
0
VOUT_H
first valid
PWM frame
OUT
VOUT_L
VOUT_H
30 %DC
@ 0.5 fPWM
first valid
OUT
OUT
PWM frame
VOUT_L
VOUT_H
first valid
PWM frame
VOUT_L
VOUT_H
70 %DC
@ 0.5 fPWM
first valid
PWM frame
OUT
VOUT_L
time
tPWM_Period
= 1/fPWM
tstartup
Fig. 3–6: PWM interface startup timing
Section 4.8. on page 28 describes the PWM interface characteristics.
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DATA SHEET
HAL 1870
3.5. Sensor Calibration
3.5.1. General Procedure for Development or Evaluation Purposes
For calibration of the sensor in the customer application, the development tool kit from
TDK-Micronas is recommended. It contains the hardware for the generation of the serial
telegram during programming and the corresponding software to program the various
register values of register values.
For the individual calibration of each sensor in the final customer application, a two-
point adjustment is recommended. Please refer to “HAL 1870/1880/1890 User Manual”
for further details on calibration procedure.
3.5.2. Locking the Sensor
For qualification and production purpose the device has to be locked in order to guaran-
tee its functionality.
The last programming step activates the memory lock function by setting the LOCK bit.
Please note that the memory lock function becomes effective after power-down and
power-up of the Hall IC. The sensors EEPROM is then locked and its content can not
be changed nor read anymore.
Warning This register cannot be reset!
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DATA SHEET
HAL 1870
4. Specifications
4.1. Outline Dimensions
Product
long lead
short lead
HAL 187x ,8x, 9x
21ꢀ0.2 optional
15.7ꢀ0.2 standard
r
gate remain
d
L
L
Y
A
D
1.0
0.295ꢀ0.09
0.2
weight
0.106 g
ꢀ0.05
4.06
ꢀ0.05
1.5
0.7
connected to PIN 2
1+0.2
connected to PIN 2
D
ꢁ
center of
sensitive area
Y
5
.
1
.
x
5
a
0
.
0
m
ꢀ
A
2
.
5
3
0
.
3
2
.
0
0.5 +- 0.1
1
3
2
ꢀ
0.08
d
1
ejector pin Ø1.5
dambar cut,
not Sn plated (6x)
a
e
L
r
a
g
n
i
d
l
e
w
r
o
r
e
ꢀ0.05
0.36
d
l
o
Sn plated
s
5
.
0
-
0
ꢀ0.05
0.43
Sn plated
ꢀ0.4
ꢀ0.4
1.27
1.27
2.54
lead length cut
not Sn plated (3x)
0
2.5
5 mm
scale
Dimensions are in mm.
Physical dimensions do not include moldflash.
BACK VIEW
FRONT VIEW
Sn-thickness might be reduced by mechanical handling.
JEDEC STANDARD
SPECIFICATION
ISSUE DATE
REVISION DATE
PACKAGE
TO92UA-2
ANSI
REV.NO.
2
DRAWING-NO.
(YY-MM-DD)
(YY-MM-DD)
ITEM NO. ISSUE
TYPE
NO.
18-09-24
20-04-07
CUAI00031033.1
ZG
2101_Ver.02
c
Copyright 2018 TDK-Micronas GmbH, all rights reserved
Fig. 4–1:
TO92UA-2 Plastic Transistor Standard UA package, 3 leads, non-spread
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
21
DATA SHEET
HAL 1870
Product
long lead
short lead
HAL 187x, 8x, 9x
21 0.2
optional
0.2 standard
o
gate remain
ꢀ
L
15.7
1.0
ꢀ
L
Y
A
D
0.295
0.2
ꢀ0.09
weight
0.106 g
ꢀ0.05
4.06
ꢀ0.05
1.5
0.7
connected to PIN 2
1+0.2
connected to PIN 2
D
ꢁ
center of
sensitive area
Y
5
.
1
.
5
x
0
.
a
0
m
ꢀ
A
5
2
.
0
.
3
3
r
2
.
0.5 +- 0.1
0.08
0
u
1
2
3
ꢀ
d
1
dambar cut,
not Sn plated (6x)
6
4
2
7
.
.
0
0
ejector pin Ø1.5
-
+
4
7
.
3
a
e
r
a
L
g
n
i
d
l
e
w
r
o
r
e
d
l
o
ꢀ0.05
0.36
s
5
.
Sn plated
0
-
0
ꢀ0.05
0.43
Sn plated
ꢀ0.4
ꢀ0.4
2.54
2.54
lead length cut
not Sn plated (3x)
0
2.5
5 mm
scale
Dimensions are in mm.
Physical dimensions do not include moldflash.
Sn-thickness might be reduced by mechanical handling.
BACK VIEW
FRONT VIEW
JEDEC STANDARD
SPECIFICATION
ISSUE DATE
REVISION DATE
PACKAGE
TO92UA-1
ANSI
REV.NO.
2
DRAWING-NO.
(YY-MM-DD)
(YY-MM-DD)
ITEM NO. ISSUE
TYPE
NO.
18-09-24
20-04-07
CUAS00031034.1
ZG
2102_Ver.02
c
Copyright 2018 TDK-Micronas GmbH, all rights reserved
Fig. 4–2:
TO92UA-1 Plastic Transistor Standard UA package, 3 leads, spread
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
22
DATA SHEET
HAL 1870
Δp
Δp
Δh
Δh
B
A
D0
F2
P2
F1
feed direction
P0
view A-B
H
H1
all dimensions in mm
TO92UA TO92UT
other dimensions see drawing of bulk
max. allowed tolerance over 20 hole spacings 1.0
Short leads 18 - 20 21 - 23.1
22 - 24.1
Long leads 24 - 26
27 - 29.1
28 - 30.1
Δp
UNIT
D0
4.0
F1
F2
Δh
L
P0
P2
T
T1
W
W0
W1
W2
1.47
1.07
1.47
1.07
11.0
max
13.2
12.2
7.05
5.65
mm
1.0
1.0
0.5
0.9
18.0
6.0
9.0
0.3
STANDARD
ISSUE DATE
YY-MM-DD
ANSI
DRAWING-NO.
ZG-NO.
ISSUE
-
ITEM NO.
ZG001031_Ver.05
IEC 60286-2
16-07-18
06631.0001.4
© Copyright 2007 Micronas GmbH, all rights reserved
Fig. 4–3:
TO92UA: Dimensions ammopack inline, not spread, standard lead length
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
23
DATA SHEET
HAL 1870
Δp
Δp
Δh
Δh
B
A
D0
F2
P2
F1
feed direction
P0
view A-B
H
H1
all dimensions in mm
TO92UA TO92UT
21 - 23.1 22 - 24.1
other dimensions see drawing of bulk
max. allowed tolerance over 20 hole spacings 1.0
Short leads
Long leads
18 - 20
24 - 26
28 - 30.1
27 - 29.1
Δp
UNIT
mm
D0
4.0
F1
F2
Δh
L
P0
P2
T
T1
W
W0
6.0
W1
9.0
W2
0.3
2.74
2.34
2.74
2.34
11.0
max
13.2
12.2
7.05
5.65
1.0
1.0
0.5
0.9
18.0
JEDEC STANDARD
ISSUE DATE
YY-MM-DD
ANSI
DRAWING-NO.
06632.0001.4
ZG-NO.
ISSUE
-
ITEM NO.
ICE 60286-2
ZG001032_Ver.06
16-07-18
© Copyright 2007 Micronas GmbH, all rights reserved
Fig. 4–4:
TO92UA: Dimensions ammopack inline, spread, standard lead length
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
24
DATA SHEET
HAL 1870
4.2. Soldering, Welding, and Assembly
Information related to solderability, welding, assembly, and second-level packaging is
included in the document “Guidelines for the Assembly of Micronas Packages”.
It is available on the TDK-Micronas website (https://www.micronas.com/en/service-
center/downloads) or on the service portal (https://service.micronas.com).
4.3. Pin Connections and Short Descriptions
Pin No. Pin Name
Short Description
Supply Voltage Pin
Ground
VSUP
GND
OUT
1
2
3
PWM Output Pin
1
VSUP
OUT
3
2
GND
Fig. 4–5: Pin configuration
4.4. Dimensions of Sensitive Area
Hall plate area = 0.2 mm 0.1 mm
See Fig. 4–1 on page 21 for more information on the Hall plate position.
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
25
DATA SHEET
HAL 1870
4.5. Absolute Maximum Ratings
Stresses beyond those listed in the “Absolute Maximum Ratings” may cause permanent
damage to the device. This is a stress rating only. Functional operation of the device at
these conditions is not implied. Exposure to absolute maximum rating conditions for
extended periods will affect device reliability.
This device contains circuitry to protect the inputs and outputs against damage due to
high static voltages or electric fields; however, it is advised that normal precautions
must be taken to avoid application of any voltage higher than absolute maximum-rated
voltages to this circuit.
All voltages listed are referenced to ground (GND).
Symbol
Parameter
Pin
No.
Min.
Max. Unit Notes
VSUP
Supply Voltage
1
8.5
14.4
15
8.5
14.4
16
V
V
t < 96 h2)
t < 10 min2)3)
t < 1 min2)3)
VOUT
Output Voltage
3
0.51)
0.51)
0.51)
8.5
14.4
16
t < 96 h2)
t < 10 min2)
t < 1 min2)
VOUTVSUP Excess of Output Voltage
1, 3
3
0.5
V
over Supply Voltage
IOUT
Continuous Output
Current
5
5
mA
min
°C
°C
tsh
Output Short Circuit
Duration
3
10
4)
TJ
Junction Temperature
under Bias
40
55
190
150
TSTORAGE
Transportation/Short-Term
Storage Temperature
Device only with-
out packing
material
VESD
ESD Protection at VSUP5)
ESD Protection at OUT5)
1
3
4.0
8.0
4.0
8.0
kV
kV
1) Internal protection resistor = 50
2) No cumulated stress
3) As long as TJmax is not exceeded
4) For 96 h - Please contact TDK-Micronas for other temperature requirements
5) AEC-Q100-002 (100 pF and 1.5 k
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
26
DATA SHEET
HAL 1870
4.6. Storage and Shelf Life
Information related to storage conditions of Micronas sensors is included in the document
“Guidelines for the Assembly of Micronas Packages”. It gives recommendations linked to
moisture sensitivity level and long-term storage.
It is available on the TDK-Micronas website (https://www.micronas.com/en/service-
center/downloads) or on the service portal (https://service.micronas.com).
4.7. Recommended Operating Conditions
Functional operation of the device beyond those indicated in the “Recommended Oper-
ating Conditions/Characteristics” is not implied and may result in unpredictable behavior
of the device and may reduce reliability and lifetime.
All voltages listed are referenced to ground (GND).
Symbol Parameter
VSUP Supply Voltage
Pin No. Min.
Typ. Max.
Unit Notes
1
4.5
5.7
5
6
5.5
8.0
V
Normal operation
During programming
IOUT
Continuous Output
Current
3
0
5
mA
RL
Load Resistor
3
3
1.0
0.33
10
k
nF
CL
Load Capacitance
47
100
NPRG
Number of EEPROM
Programming Cycles
0 °C < Tamb < 55 °C
TJ
Junction Operating
Temperature1)
40
40
40
125
150
170
°C
for 8000 h2)
for 2000 h2)
for 1000 h2)
1) Depends on the temperature profile of the application. Please contact TDK-Micronas for life time
calculations.
2) Time values are not cumulative.
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
27
DATA SHEET
HAL 1870
4.8. Characteristics
at TJ = 40 °C to 170 °C, VSUP = 4.5 V to 5.5 V, GND = 0 V, after programming the sensor
and locking the EEPROM, at Recommended Operation Conditions if not otherwise speci-
fied in the column “Notes”. Typical characteristics for TJ = 25 °C and VSUP = 5 V.
Symbol Parameter
Pin Min.
No.
Typ.
6.75
Max.
Unit Conditions
ISUP
Supply Current over
1
5
8.5
mA
Temperature Range
tstartup
Power-Up Time
(Time to reach stabi-
lized Output duty
cycle)1)
3
2/fPWM
8/fPWM ms
Time where MDATA is
available and first PWM
period starts with reli-
able value (99% of final
duty cycle)
Signal
Resolution
3
10
Bit
fs
Sampling Frequency
8
kSps DSDOUBLE = 0
kSps DSDOUBLE = 1
16
INL
BW
Non-Linearity of
Output Voltage
3
1.0
0
1.0
%
of Supply Voltage
(Linear regression)
TJ = 25 °C
over Temperature2)
Small Signal Band-
3
2.25
4.5
2.5
5
kHz BAC <10 mT, fs = 8 kHz
kHz fs = 16 kHz
width (3 dB)2)
1) Guaranteed by design
2) Characterized on small sample size, not tested
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
28
DATA SHEET
HAL 1870
Symbol Parameter
Pin Min.
No.
Typ.
Max.
Unit Conditions
%DC CLAMP_SP CLEVEL
CLAMPL Clamp Low1)
3
0
0
0
0
0
1
1
1
1
00
01
10
10
00
01
10
11
5
10
15
5
10
20
10
CLAMPH Clamp High1)
%DC CLAMP_SP CLEVEL
3
100
95
90
85
90
95
90
80
0
0
0
0
1
1
1
1
00
01
10
10
00
01
10
11
DUTY
Output offset Duty
cycle
3
3
49
50
51
%
B = 0 mT, T
= 25 °C,
Offset
J
PWM
f
PWM frequency
0.9 x
2
1
0.5
0.25
1.1 x
kHz
Customer programmable
2 consecutive periods
PWM
f
f
PWM
PWM
1)
J
PWM frequency Jitter
3
0.02
0.04
%
PWM
Output Pin
V
V
Output Low Voltage
Output High Voltage
3
3
3
0.2
4.95
1
0.3
V
V
= 5 V, I
= 5 mA
OUTL
OUTH
SUP
OUT
4.85
0.7
V
t
Rise time V
10% to
1.4
s
R
C
= 1 k 10%,
pull-up
rise
OUT
1)
90%
= 470 pF20%
load
t
Fall time V
10%
90% to
3
3
20
40
45
80
ns
fall
OUT
1)
R
Output Resistance over
Recommended Operat-
ing Range
V
V
OUT
OUT OUTLmax
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
29
DATA SHEET
HAL 1870
Symbol Parameter
Pin Min.
No.
Typ.
Max.
Unit Conditions
tresp(PWM) Response Time of
PWM Output1)
3
-
1.5
1.66
ms
time from 50% mag-
netic step like signal
Bstep to 50% of final
output duty cycle
tset(PWM) Settling Time of
PWM Output
3
-
1.0
1.2
ms
time from 10% to 90%
of final output duty
cycle as response of
step like magnetic sig-
nal Bstep from 0 mT to
Bmax
TO92UA Package
Thermal Resistance
Determined with a
1s0p board
Rthja
Rthjc
Junction to Air
250
70
K/W
K/W
Junction to Case
1) Guaranteed by design
2) Characterized on small sample size, not tested
100%
Magnetic
field
50%
0 %
t
resp(PWM)
OUT
100%
90%
50%
D.C.
10%
0%
t
set(PWM)
Fig. 4–6: Response time and settling time of PWM output signal
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
30
DATA SHEET
HAL 1870
4.9. Power-On Reset / Undervoltage Detection
at TJ = 40 °C to 170 °C, GND=0 V, typical characteristics for TJ = 25 °C, after pro-
gramming and locking.
Symbol
Parameter
Pin
Min.
Typ.
Max.
Unit
Test Conditions
VPOR_LH
Undervoltage
1
4.15
4.3
4.45
V
Detection Level
(Power-On Reset,
Rising Supply)1)
VPOR_HL
Undervoltage
Detection Level
1
1
3.9
4.05
225
4.25
300
V
(Power-On Reset,
Falling Supply)1)
VPOR_HYS
Undervoltage/POR
Detection Level
Hysteresis1)
150
mV
1) Characterized on small sample size, not tested
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
31
DATA SHEET
HAL 1870
4.10. Magnetic Characteristics
at Recommended Operating Conditions if not otherwise specified in the column ’Notes’,
TJ = 40 °C to 170 °C, VSUP = 4.5 V to 5.5 V, after programming the sensor and locking
the EEPROM. Typical Characteristics for TA = 25 °C and VSUP = 5 V.
Symbol
Parameter
Pin
No.
Values
Min.
80
Unit
Notes
Typ.
Max.
RANGEABS Absolute Magnetic
Range of A/D Con-
100
120
%
% of nominal
RANGE
verter over temperature
Nominal RANGE pro-
grammable from
20 mT up to 160 mT
RANGE
SENS
Magnetic-field range
Sensitivity
20
80
160 mT
TO92UA-1/-2
3
0.2
2.2
%DC Depending on mag-
/mT netic-field range 1)
and SENSIVITY reg-
ister content
Senstrim
Trim Step for Absolute
Sensitivity
3
3
0.006
0.02
%DC At min. sensitivity
/mT At max. sensitivity
Offsettrim OffseT Trim
0.05
0.2
6.25 %DC OALN = 0
25
OALN = 1
ES
Sensitivity Error over
3
6
0
6
%
Part to part variation
for certain combina-
tions of TC and
TCSQ
Temperature Range1)
(see Section 4.10.1.)
BOFFSET
Magnetic Offset
3
3
2
0
0
2
mT
µT
B = 0 mT, TA = 25 °C
BOFFSET
Magnetic Offset Drift
over temperature
range1)
600
600
B = 0 mT,
RANGE = 40 mT,
Sens = 100 mV/mT
BOFFSET(T) BOFFSET
(25 °C)
BHysteresis
Magnetic Hysteresis1)
3
20
0
20
µT
Range = 40 mT
1)
Characterized on small sample size, not tested
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
32
DATA SHEET
HAL 1870
4.10.1. Definition of Sensitivity Error ES
ES is the maximum of the absolute value of the quotient of the normalized measured
value1) over the normalized ideal linear value2) minus 1:
meas
ideal
-----------
ES = max abs
– 1
Tmin, Tmax
In the example shown in Fig. 4–7 the maximum error occurs at 10 °C:
1.001
0.993
------------
ES =
– 1 = 0.8%
1) normalized to achieve a least-square-fit straight-line that has a value of 1 at 25 °C
2) normalized to achieve a value of 1 at 25 °C
ideal 200 ppm/k
1.03
least-squares method straight line
of normalized measured data
measurement example of real
1.02
1.01
1.00
0.99
0.98
sensor, normalized to achieve a
value of 1 of its least-squares
method straight line at 25 °C
1.001
0.993
-25 -10
150
175
0
25
temperature [°C]
125
-50
50
75 100
Fig. 4–7: Definition of Sensitivity Error ES
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
33
DATA SHEET
HAL 1870
5. Application Notes
5.1. Ambient Temperature
Due to the internal power dissipation, the temperature on the silicon chip (junction temper-
ature TJ) is higher than the temperature outside the package (ambient temperature TA).
TJ = TA + T
At static conditions and continuous operation, the following equation applies:
T = ISUP * VSUP * RthjX
The X represents junction to air or to case.
In order to estimate the temperature difference T between the junction and the respec-
tive reference (e.g. air, case, or solder point) use the max. parameters for ISUP, RthX,
and the max. value for VSUP from the application.
The following example shows the result for junction to air conditions. VSUP = 5.5 V,
Rthja = 250 K/W and ISUP = 10 mA the temperature difference T = 13.75 K.
The junction temperature TJ is specified. The maximum ambient temperature TAmax can
be estimated as:
TAmax = TJmax T
Note
The calculated self-heating of the devices is only valid for the Rth test
boards. Depending on the application setup the final results in an applica-
tion environment might deviate from these values.
5.2. EMC
HAL 1870 is designed for a stabilized 5 V supply. Interferences and disturbances
conducted along the 12 V onboard system (product standard ISO 7637 part 1) are not
relevant for these applications.
For applications with disturbances by capacitive or inductive coupling on the supply line
or radiated disturbances, the application circuit shown in Fig. 5–1 on page 35 is recom-
mended. Applications with this arrangement should pass the EMC tests according to
the product standards ISO 7637 part 3 (electrical transient transmission by capacitive or
inductive coupling).
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
34
DATA SHEET
HAL 1870
5.3. Application Circuit
For EMC protection, it is recommended to connect a 470 pF capacitor between ground
and output voltage pin as well as a 100 nF capacitor between supply and ground as
shown in Fig. 5–1.
VSUP
1 k
OUT
HAL1870
100 nF
470 pF
GND
Fig. 5–1: Recommended application circuit
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
35
DATA SHEET
HAL 1870
5.4. Temperature Compensation
The relationship between the temperature coefficient of the magnet and the corresponding
TC and TCSQ codes for linear compensation is given in the following table. In addition to
the linear change of the magnetic field with temperature, the curvature can be adjusted as
well. For this purpose, other TC and TCSQ combinations are required which are not shown
in the table. Please contact TDK-Micronas for more detailed information on this higher
order temperature compensation.
Temperature Coefficient
TC
TCSQ
of Magnet System (ppm/K)
2100
1800
1500
1200
900
5
7
9
8
8
6
5
5
4
4
3
3
2
2
2
0
10
13
16
20
23
25
28
29
32
34
39
45
51
500
150
0
300
500
750
1000
1500
2100
2700
1
Note
For development or evaluation purposes TDK-Micronas recommends to
use the HAL 1870/1880/1890 Programming Environment to find optimal
settings for temperature coefficients. Please contact TDK-Micronas for
more detailed information.
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
36
DATA SHEET
HAL 1870
6. Programming of the Sensor
HAL 1870 features two different operating modes. In Application Mode the sensor pro-
vides a PWM signal/output. In Programming Mode it is possible to change the register
settings of the sensor.
After power-up the sensor is always operating in the Application Mode. As long as the
sensor is not locked it can be switched to the Programming Mode by voltage pulse on
the sensor OUT pin.
6.1. Programming Interface
In Programming Mode the sensor is addressed by modulating a serial telegram on the
sensor’s output pin or on the sensor’s supply voltage. The sensor answers with a mod-
ulation of the output voltage.
A logical “0” is coded as no level change within the bit time. A logical “1” is coded as a level
change of typically 50% of the bit time. After each bit, a level change occurs (see Fig. 6–1).
The serial telegram is used to transmit the EEPROM content, error codes and digital
values of the magnetic field from and to the sensor.
tr
tf
VSUPH
tp0
tp0
logical 0
or
or
VSUPL
tp1
VSUPH
tp0
tp0
logical 1
tp1
VSUPL
Fig. 6–1: Definition of logical 0 and 1 bit
A description of the communication protocol and the programming of the sensor is avail-
able in a separate document (Application Note “HAL 1870/1880/1890 Programming
Guide”).
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
37
DATA SHEET
HAL 1870
Table 6–1: Telegram parameters for host (All voltages are referenced to GND.)
Symbol
Parameter
Pin
No.
Limit Values
Unit
Min.
Typ.
Max.
VSUPL
Supply Voltage for Low level dur-
ing programming through sensor
VSUP pin
1
1
5
6
V
V
VSUPH
Supply Voltage for High level dur-
ing programming through sensor
VSUP pin
8
9
VSUPProgram
Supply Voltage for EEPROM pro-
gramming
1
5.7
6
6.5
V
tp0
Bit time if command send to the
sensor
1, 3
1024
µs
tp1
BiPhase half bit time
1, 3
3
0.5
tp0
µs
tpOUT
Bit time for sensor answer
1024
6.2. Programming Environment and Tools
For the programming of HAL 1870 during product development a programming tool
including hardware and software is available on request. It is recommended to use the
TDK MSP V1.x Magnetic Sensor Programmer or TDK-Micronas’ tool kit (HAL USB-Kit
and LabViewTM programming environment) in order to ease the product development.
The details of programming sequences can be found in the “HAL 1870/1880/1890 User
Manual” and in the “HAL 1870/1880/1890 Programming Guide”.
6.3. Programming Information
For production and qualification tests, it is mandatory to set the LOCK bit after final adjust-
ment and programming of HAL 1870. The lock function is active after the next power-up of
the sensor.
The success of the lock process shall be checked by reading the status of the LOCK bit
after locking and by a negative communication test after power-on reset.
HAL 1870 features a diagnostic register to check the success and quality of the pro-
gramming process. Detailed information about programming the sensor can be found in
the “HAL 1870/1880/1890 User Manual” and in the “HAL 1870/1880/1890 Programming
Guide”.
EMI (Electromagnetic Interference) may disturb the programming pulses. Please take
precautions against EMI.
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
38
DATA SHEET
HAL 1870
7. Document History
1. Data Sheet: “HAL 1870 Programmable Linear Hall-Effect Sensor with PWM Output”,
Oct. 23, 2020, DSH000208_001EN. First release of the data sheet.
TDK-Micronas GmbH
Hans-Bunte-Strasse 19 D-79108 Freiburg P.O. Box 840 D-79008 Freiburg, Germany
Tel. +49-761-517-0 Fax +49-761-517-2174 www.micronas.com
TDK-Micronas GmbH
Oct. 23, 2020; DSH000208_001EN
39
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