TLE4946KHTSA1 [INFINEON]
Hall Effect Sensor, 0-19.2mT Min, 19.2mT Max, -0.7-18V, Rectangular, Surface Mount, SC-59, SOT-23, 3 PIN;
| 型号： | TLE4946KHTSA1 |
| 厂家： | 
Infineon |
| 描述： | Hall Effect Sensor, 0-19.2mT Min, 19.2mT Max, -0.7-18V, Rectangular, Surface Mount, SC-59, SOT-23, 3 PIN 传感器 换能器 |
| 文件： | 总19页 (文件大小：477K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet, Rev 1.0, September 2007
TLE4946K
High Precision Bipolar Hall-Effect Latch
Sensors
Edition 2007-09
Published by
Infineon Technologies AG
81726 München, Germany
© 2007 Infineon Technologies AG
All Rights Reserved.
Legal Disclaimer
The information given in this document shall in no event be regarded as a guarantee of conditions or
characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any
information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties
and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights
of any third party.
Information
For further information on technology, delivery terms and conditions and prices, please contact the nearest
Infineon Technologies Office (www.infineon.com).
Warnings
Due to technical requirements, components may contain dangerous substances. For information on the types in
question, please contact the nearest Infineon Technologies Office.
Infineon Technologies components may be used in life-support devices or systems only with the express written
approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure
of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support
devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain
and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may
be endangered.
TLE4946K
Revision History:
2007-09
Rev 1.0
Previous Version:
Page
Subjects (major changes since last revision)
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TLE4946K
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin Configuration (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1
1.2
1.3
2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1
2.2
3
4
5
6
Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical and Magnetic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Package Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Distance between Chip and Package Surface . . . . . . . . . . . . . . . . . . . . . 10
Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1
7.2
7.3
Data Sheet
1
Rev 1.0, 2007-09
High Precision Bipolar Hall-Effect Latch
TLE4946K
1
Overview
1.1
Features
•
•
•
2.7 V to 24 V supply voltage operation
Operation from unregulated power supply
High sensitivity and high stability of the magnetic
switching points
SC59
•
High resistance to mechanical stress by
Active Error Compensation
•
•
•
•
•
•
•
Reverse battery protection (– 18 V)
Superior temperature stability
Peak temperatures up to 195°C without damage
Low jitter (typ. 1 µs)
High ESD performance (± 6 kV HBM)
Digital output signal
SMD package SC59 (SOT23 compatible)
1.2
Functional Description
The TLE4946K is a integrated circuit Hall-effect sensor designed specifically for highly
accurate applications.
Precise magnetic switching points and high temperature stability are achieved by active
compensation circuits and chopper techniques on chip.
Type
Package
TLE4946K
SC59
Data Sheet
2
Rev 1.0, 2007-09
TLE4946K
Overview
1.3
Pin Configuration (top view)
Center of
Sensitive Area
3
± 0. 15
0.8
1
2
1.5 ± 0.15
SC59
Figure 1
Pin Definition and Center of Sensitive Area
Pin Definitions and Functions SC59
Table 1
Pin No.
Symbol
VS
Q
Function
Supply voltage
Output
1
2
3
GND
Ground
Data Sheet
3
Rev 1.0, 2007-09
TLE4946K
General
2
General
2.1
Block Diagram
VS
Voltage Regulator
reverse polarity protected
Bias and
Compensation
Circuits
Oscillator
and
Sequencer
Q
Ref
GND
Amplifier
Low
Pass
Filter
Comparator
with
Chopped
Hysteresis
Hall Probe
Figure 2
2.2
Block Diagram
Circuit Description
The chopped Hall IC Switch comprises a Hall probe, bias generator, compensation
circuits, oscillator, and output transistor.
The bias generator provides currents for the Hall probe and the active circuits.
Compensation circuits stabilize the temperature behavior and reduce technology
variations.
The Active Error Compensation rejects offsets in signal stages and the influence of
mechanical stress to the Hall probe caused by molding and soldering processes and
other thermal stresses in the package.
This chopper technique together with the threshold generator and the comparator
ensure high accurate magnetic switching points.
Data Sheet
4
Rev 1.0, 2007-09
TLE4946K
Maximum Ratings
3
Maximum Ratings
Table 2
Absolute Maximum Ratings
Tj = – 40°C to 150°C
Parameter
Symbol
Limit Values
Unit Conditions
min.
max.
Supply voltage
VS
– 18
– 18
– 18
18
24
26
V
for 1 h, Rs ≥ 200 Ω
for 5 min, Rs ≥ 200 Ω
Supply current
through
protection device
IS
– 50
+ 50
mA
Output voltage
VQ
IQ
Tj
– 0.7
– 0.7
– 50
18
26
+ 50
V
for 5 min @ 1.2 kΩ pull up
Continuous
output current
Junction
temperature
mA
°C
–
–
–
–
155
165
175
195
for 2000 h (not additive)
for 1000 h (not additive)
for 168 h (not additive)
for 3 x 1 h (additive)
Storage
temperature
TS
– 40
150
°C
Magnetic flux
density
B
–
unlimited mT
Note: Stresses above those listed here may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Table 3
Parameter
ESD Protection 1)
Symbol
Limit Values
max.
Unit
Notes
min.
ESD voltage
VESD
–
± 6
kV
HBM, R = 1.5 kΩ,
C = 100 pF
TA = 25°C
1) Human Body Model (HBM) tests according to: EOS/ESD Association Standard S5.1-1993 and
Mil. Std. 883D method 3015.7
Data Sheet
5
Rev 1.0, 2007-09
TLE4946K
Operating Range
4
Operating Range
Operating Range
Symbol
Table 4
Parameter
Limit Values
Unit
Conditions
min.
2.7
typ.
–
max.
18
Supply voltage
Output voltage
Junction
temperature
VS
VQ
Tj
V
V
°C
– 0.7
– 40
–
–
18
150
Output current
IQ
0
–
20
mA
Data Sheet
6
Rev 1.0, 2007-09
TLE4946K
Electrical and Magnetic Parameters
5
Electrical and Magnetic Parameters
Table 5
Parameter
Electrical Characteristics 1)
.
Symbol
Limit Values
min. typ. max.
Unit Conditions
Supply current
Reverse current
Output saturation
voltage
IS
ISR
VQSAT
2
0
–
4
0.2
0.3
6
1
0.6
mA
mA
V
VS = 2.7 V ... 18 V
VS = – 18 V
IQ = 20 mA
Output leakage
current
IQLEAK
–
0.05
10
µA
for VQ = 18 V
Output fall time
Output rise time
tf
tr
–
–
0.02
0.4
1
1
µs
µs
RL = 1.2 kΩ; CL = 50 pF
see: Figure 3 “Timing
Definition” on Page 9
Chopper frequency fOSC
–
0
320
–
–
kHz
Switching
fSW
15 2) kHz
frequency
Delay time 3)
Output jitter 4)
td
tQJ
–
–
13
1
–
–
µs
µsRMS Typical value for square
wave signal 1 kHz
µs
Power-on time 5)
tPON
–
–
13
100
–
–
VS ≥ 2.7 V
Thermal resistance RthJA
K/W SC59
6)
1) over operating range, unless otherwise specified. Typical values correspond to VS =12 V and TA = 25°C
2) To operate the sensor at the max. switching frequency, the value of the magnetic signal amplitude must be
1.4 times higher than for static fields.
This is due to the - 3 dB corner frequency of the low pass filter in the signal path.
3) Systematic delay between magnetic threshold reached and output switching
4) Jitter is the unpredictable deviation of the output switching delay
5) Time from applying VS ≥ 2.7 V to the sensor until the output state is valid
6) Thermal resistance from junction to ambient
Calculation of the ambient temperature (SC59 example)
e.g. for VS = 12.0 V, IStyp = 4 mA, VQSATtyp = 0.3 V and IQ = 20 mA :
Power Dissipation: PDIS = 54.0 mW.
In TA = Tj – (RthJA × PDIS) = 175°C – (100 K / W × 0.054 W)
Resulting max. ambient temperature: TA = 169.6°C
Note: Typical characteristics specify mean values expected over the production spread.
Data Sheet
7
Rev 1.0, 2007-09
TLE4946K
Electrical and Magnetic Parameters
Table 6
Parameter
Magnetic Characteristics TLE4946K 1)
Symbol Tj [°C] Limit Values
min. typ. max.
Unit
Notes
Operate point
Release point
Hysteresis
BOP
– 40
11.8
11.0
6.1
15.8
14.0
9.6
19.2
17.0
13.7
mT
25
150
BRP
– 40
25
150
– 40
25
150
–
–
–
19.2
17.0
13.7
–
–
–
15.8 – 11.8 mT
14.0 – 11.0
9.6
– 6.1
BHYS
–
22.0
–
–
28.0
–
–
34.0
–
mT
Magnetic Offset BOFF
– 40
25
150
–
– 3.0
–
–
–
–
–
3.0
–
mT
2)
Temperature
TC
–
–
–
- 2000
–
–
ppm/°C
compensation of
magn. thresholds
Repeatability of BREP
20
µTRMS Typ. value for
∆B / ∆t
magnetic
thresholds 3)
> 12 mT/ms
1) over operating range, unless otherwise specified. Typical values correspond to VS = 12 V.
2)
BOFF = (BOP + BRP) / 2
3)
BREP is equivalent to the noise constant
Field Direction Definion
Positive magnetic fields related with south pole of magnet to the branded side of
package.
Data Sheet
8
Rev 1.0, 2007-09
TLE4946K
Timing Diagram
6
Timing Diagram
Applied
Magnetic
Field
BOP
BRP
td
td
tf
tr
VQ
90%
10%
Figure 3
Timing Definition
Data Sheet
9
Rev 1.0, 2007-09
TLE4946K
Package Information
7
Package Information
7.1
Package Marking
Year (y) = 0...9
Month (m) = 1...9,
O - October
N - November
D - December
46
AEA03643
Figure 4
Marking TLE4946K
Data Sheet
10
Rev 1.0, 2007-09
TLE4946K
Package Information
7.2
Distance between Chip and Package Surface
Branded Side
d: Distance chip to upper side of IC
±0.05
SC59: 0.545
mm
AEA03244
Figure 5
7.3
Distance Chip SC59 to Upper Side of IC
Package Outlines
±0.1
1.1
±0.1
3
0.15 MAX.
0.2+0.1
0.1
+0.05
3x0.4
-0.1
M
0.1
3
±
0.15
0.45
1
2
+0.1
0.15
0.95
-0.05
0.95
(0.55)
0˚...8˚ MAX.
GPS09473
Figure 6
SC59
Data Sheet
11
Rev 1.0, 2007-09
TLE4946K
Package Information
PCB Footprint for SC59
The following picture shows a recommendation for the PCB layout.
n
0.8
0.8
1.2
0.8
1.2
Wave Soldering
0.8
Reflow Soldering
Figure 7
Footprint SC59 (SOT23 compatible)
Note: You can find all of our packages, sorts of packing and
others in our Infineon Internet Page “Products”:
http://www.infineon.com/products.
Dimensions in mm
Data Sheet
12
Rev 1.0, 2007-09
TLE4946K
Notes
Data Sheet
13
Rev 1.0, 2007-09
TLE4946K
Notes
Data Sheet
14
Rev 1.0, 2007-09
TLE4946K
Notes
Data Sheet
15
Rev 1.0, 2007-09
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