ACS758KCB-150U-PFF-T [ALLEGRO]
The Allegro ACS758 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing.; 快板ACS758电流传感器IC系列提供了交流或直流电流感测经济实惠的精密解决方案。型号: | ACS758KCB-150U-PFF-T |
厂家: | ALLEGRO MICROSYSTEMS |
描述: | The Allegro ACS758 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing. |
文件: | 总21页 (文件大小:649K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
ACS758xCB
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
Features and Benefits
Description
▪ Industry-leading noise performance through proprietary
amplifier and filter design techniques
The Allegro® ACS758 family of current sensor ICs provides
economicalandprecisesolutionsforACorDCcurrentsensing.
Typical applications include motor control, load detection and
management, power supply and DC-to-DC converter control,
inverter control, and overcurrent fault detection.
▪ Integrated shield greatly reduces capacitive coupling from
current conductor to die due to high dV/dt signals, and
prevents offset drift in high-side, high voltage applications
▪ Total output error improvement through gain and offset
trim over temperature
▪ Small package size, with easy mounting capability
▪ Monolithic Hall IC for high reliability
▪ Ultra-low power loss:100 μΩ internal conductor resistance
▪ Galvanic isolation allows use in economical, high-side
current sensing in high voltage systems
The device consists of a precision, low-offset linear Hall
circuit with a copper conduction path located near the die.
Applied current flowing through this copper conduction path
generates a magnetic field which the Hall IC converts into a
proportionalvoltage.Deviceaccuracyisoptimizedthroughthe
close proximity of the magnetic signal to the Hall transducer.
A precise, proportional output voltage is provided by the
low-offset, chopper-stabilized BiCMOS Hall IC, which is
programmed for accuracy at the factory.
▪ 3.0 to 5.5 V, single supply operation
Continued on the next page…
High level immunity to current conductor dV/dt and stray
electric fields, offered byAllegro proprietary integrated shield
technology,guaranteeslowoutputvoltagerippleandlowoffset
drift in high-side, high voltage applications.
TÜV America
Certificate Number:
U8V 09 05 54214 021
Package: 5-pin package
Theoutputofthedevicehasapositiveslope(>VCC/2)whenan
increasingcurrentflowsthroughtheprimarycopperconduction
path (from terminal 4 to terminal 5), which is the path used
forcurrentsampling.Theinternalresistanceofthisconductive
path is 100 μΩ typical, providing low power loss.
The thickness of the copper conductor allows survival of the
device at high overcurrent conditions. The terminals of the
PSS
PFF
Leadform
Leadform
Continued on the next page…
Additional leadforms available for qualifying volumes
Typical Application
+3.3 or 5 V
1
2
4
VCC
GND
IP+
ACS758
CBYP
0.1 μF
IP
CF
5
IP–
3
VIOUT
VOUT
RF
Application 1. The ACS758 outputs an analog signal, VOUT, that
varies linearly with the uni- or bi-directional AC or DC primary
sampled current, IP, within the range specified. CF is for optimal
noise management, with values that depend on the application.
ACS758-DS, Rev. 6
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Features and Benefits (continued)
Description (continued)
conductive path are electrically isolated from the signal leads (pins
▪ 120 kHz typical bandwidth
1 through 3). This allows the ACS758 family of sensor ICs to be
used in applications requiring electrical isolation without the use
of opto-isolators or other costly isolation techniques.
▪ 3 μs output rise time in response to step input current
▪ Output voltage proportional to AC or DC currents
▪ Factory-trimmed for accuracy
▪ Extremely stable output offset voltage
▪ Nearly zero magnetic hysteresis
The device is fully calibrated prior to shipment from the factory.
TheACS758familyislead(Pb)free.Allleadsareplatedwith100%
matte tin, and there is no Pb inside the package. The heavy gauge
leadframe is made of oxygen-free copper.
Selection Guide
Package
Primary Sampled
Sensitivity
Sens (Typ.)
(mV/A)
Current
Directionality
TOP
(°C)
Part Number1
Current , IP
(A)
Packing2
Terminals Signal Pins
ACS758LCB-050B-PFF-T
ACS758LCB-050U-PFF-T
ACS758LCB-100B-PFF-T
ACS758LCB-100U-PFF-T
ACS758KCB-150B-PFF-T
ACS758KCB-150U-PFF-T
ACS758KCB-150B-PSS-T
ACS758ECB-200B-PFF-T
ACS758ECB-200U-PFF-T
ACS758ECB-200B-PSS-T
Formed
Formed
Formed
Formed
Formed
Formed
Straight
Formed
Formed
Straight
Formed
Formed
Formed
Formed
Formed
Formed
Straight
Formed
Formed
Straight
±50
50
40.
Bidirectional
Unidirectional
Bidirectional
Unidirectional
Bidirectional
Unidirectional
Bidirectional
Bidirectional
Unidirectional
Bidirectional
60.
–40 to 150
±100
100
20.
40.
±150
150
13.3
26.7
13.3
10.
34 pieces
per tube
–40 to 125
–40 to 85
±150
±200
200
20.
±200
10.
1Additional leadform options available for qualified volumes.
2Contact Allegro for additional packing options.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
2
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Absolute Maximum Ratings
Characteristic
Symbol
VCC
Notes
Rating
Units
V
Forward Supply Voltage
Reverse Supply Voltage
Forward Output Voltage
Reverse Output Voltage
Output Source Current
Output Sink Current
8
–0.5
VRCC
V
VIOUT
28
V
VRIOUT
IOUT(Source)
IOUT(Sink)
–0.5
V
VIOUT to GND
VCC to VIOUT
Range E
3
mA
mA
ºC
ºC
ºC
ºC
ºC
1
–40 to 85
–40 to 125
–40 to 150
165
Nominal Operating Ambient Temperature
TOP
Range K
Range L
Maximum Junction
TJ(max)
Tstg
Storage Temperature
–65 to 165
Isolation Characteristics
Characteristic
Symbol
Notes
Rating
Unit
Agency type-tested for 60 seconds per
UL standard 60950-1, 2nd Edition
Dielectric Strength Test Voltage*
Working Voltage for Basic Isolation
VISO
3000
VAC
990
700
636
450
VDC or Vpk
Vrms
For basic (single) isolation per UL standard
60950-1, 2nd Edition
VWFSI
VDC or Vpk
Vrms
For reinforced (double) isolation per UL standard
60950-1, 2nd Edition
Working Voltage for Reinforced Isolation
VWFRI
* Allegro does not conduct 60-second testing. It is done only during the UL certification process.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
3
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Thermal Characteristics may require derating at maximum conditions
Characteristic
Symbol
Test Conditions*
Value
Unit
Mounted on the Allegro evaluation board with
2800 mm2 (1400 mm2 on component side and
1400 mm2 on opposite side) of 4 oz. copper con-
nected to the primary leadframe and with thermal
vias connecting the copper layers. Performance
is based on current flowing through the primary
leadframe and includes the power consumed by
the PCB.
Package Thermal Resistance
RθJA
7
ºC/W
*Additional thermal information available on the Allegro website
Typical Overcurrent Capabilities1,2
Characteristic
Symbol
Notes
Rating
1200
900
Units
TA = 25°C, 1s duration, 1% duty cycle
TA = 85°C, 1s duration, 1% duty cycle
TA = 150°C, 1s duration, 1% duty cycle
A
A
A
Overcurrent
IPOC
600
1Test was done with Allegro evaluation board. The maximum allowed current is limited by TJ(max) only.
2For more overcurrent profiles, please see FAQ on the Allegro website, www.allegromicro.com.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
4
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Functional Block Diagram
+3.3 to 5 V
VCC
IP+
To all subcircuits
VIOUT
Amp
Out
0.1 μF
Offset
Gain
Gain
Offset
Temperature
Coefficient
Temperature
Coefficient
Trim Control
GND
IP–
Pin-out Diagram
IP+
4
3
2
1
VIOUT
GND
VCC
IP–
5
Terminal List Table
Number
Name
VCC
GND
VIOUT
IP+
Description
1
2
3
4
5
Device power supply terminal
Signal ground terminal
Analog output signal
Terminal for current being sampled
Terminal for current being sampled
IP–
Allegro MicroSystems, Inc.
115 Northeast Cutoff
5
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
COMMON OPERATING CHARACTERISTICS1 valid at TOP = –40°C to 150°C and VCC = 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
5.0
10
Max.
5.5
13.5
–
Units
V
Supply Voltage2
VCC
3
–
–
Supply Current
Power-On Delay
ICC
Output open
TA = 25°C
mA
μs
tPOD
10
IP step = 60% of IP+, 10% to 90% rise time, TA = 25°C,
COUT = 0.47 nF
Rise Time3
tr
–
3
–
μs
Propagation Delay Time3
Response Time
tPROP
TA = 25°C, COUT = 0.47 nF
–
–
1
4
–
–
μs
μs
tRESPONSE
Measured as sum of tPROP and tr
Internal Bandwidth4
BWi
–3 dB; TA = 25°C, COUT = 0.47 nF
VIOUT to GND
–
4.7
–
120
–
–
–
kHz
kꢀ
nF
μΩ
%
Output Load Resistance
Output Load Capacitance
Primary Conductor Resistance
Symmetry3
RLOAD(MIN)
CLOAD(MAX)
RPRIMARY
ESYM
VIOUT to GND
–
10
–
TA = 25°C
–
100
100
VCC/2
Over half-scale of Ip
Bidirectional variant, IP = 0 A, TA = 25°C
99
–
101
–
VIOUT(QBI)
V
Quiescent Output Voltage5
Ratiometry3
Unidirectional variant, IP = 0 A, TA = 25°C, VIOUT(QUNI) is
ratiometric to VCC
VIOUT(QUNI)
VRAT
–
–
0.6
–
–
V
VCC = 4.5 to 5.5 V
100
%
1Device is factory-trimmed at 5 V, for optimal accuracy.
2Devices are programmed for maximum accuracy at 5.0 V VCC levels. The device contains ratiometry circuits that accurately alter the 0 A Output Volt-
age and Sensitivity level of the device in proportion to the applied VCC level. However, as a result of minor nonlinearities in the ratiometry circuit ad-
ditional output error will result when VCC varies from the 5 V VCC level. Customers that plan to operate the device from a 3.3 V regulated supply should
contact their local Allegro sales representative regarding expected device accuracy levels under these bias conditions.
3See Characteristic Definitions section of this datasheet.
4Calculated using the formula BWi = 0.35 / tr.
5VIOUT(Q) may drift over the lifetime of the device by as much as ±25 mV.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
6
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
X050B PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 150°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
–50
–
Typ.
–
Max.
50
–
Units
A
Primary Sampled Current
IP
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
40
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 150°C
Sens(TOP)LT Full scale of IP applied for 5 ms,TOP = –40°C to 25°C
–
39.4
41
–
–
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
10
–
Nonlinearity
–1
–
–
1
VOE(TA)
±5
–
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 150°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
–
±15
±35
100
–1.2
2
–
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 50 A
–
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 150°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 2.5 V.
4Percentage of IP. Output filtered.
X050U PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 150°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
–
Max.
50
–
Units
A
Primary Sampled Current
IP
0
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
–
60
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 150°C
Sens(TOP)LT Full scale of IP applied for 5 ms,TOP = –40°C to 25°C
–
59
–
–
61
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
15
–
Nonlinearity
–1
–
–
1
VOE(TA)
±5
–
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 150°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
–
±20
±40
100
–1.2
2
–
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 50 A
–
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 150°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 0.6 V.
4Percentage of IP. Output filtered.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
7
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
X100B PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 150°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
–
Max.
Units
A
Primary Sampled Current
IP
–100
100
–
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
–
20
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 150°C
Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C
–
19.75
20.5
6
–
–
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
–
Nonlinearity
–1.25
–
1.25
–
VOE(TA)
–
–
–
–
–
–
±5
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 150°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
±20
±20
150
–1.3
2.4
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 100 A
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 150°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 2.5 V.
4Percentage of IP. Output filtered.
X100U PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 150°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
–
Max.
Units
A
Primary Sampled Current
IP
0
100
–
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
–
40
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 150°C
Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C
–
39.5
41
–
–
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
12
–
Nonlinearity
–1.25
–
1.25
–
VOE(TA)
–
–
–
–
–
–
±5
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 150°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
±20
±20
150
–1.3
2.4
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 100 A
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 150°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 0.6 V.
4Percentage of IP. Output filtered.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
8
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
X150B PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 125°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
–
Max.
Units
A
Primary Sampled Current
IP
–150
–
150
–
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
13.3
13.1
13.5
4
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 125°C
Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
–
Nonlinearity
– 1
–
–
1
VOE(TA)
±5
–
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 125°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
–
±14
±24
205
–1.8
1.6
–
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 150 A
–
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 125°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 2.5 V.
4Percentage of IP. Output filtered.
X150U PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 125°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
–
Max.
Units
A
Primary Sampled Current
IP
0
150
–
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
–
26.6
26.6
27.4
8
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 125°C
Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
–
Nonlinearity
– 1
–
–
1
VOE(TA)
±5
–
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 125°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
–
±14
±24
205
–1.8
1.6
–
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 150 A
–
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 125°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 0.6 V.
4Percentage of IP. Output filtered.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
9
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
X200B PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 85°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
–
Max.
Units
A
Primary Sampled Current
IP
–200
–
200
–
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
10
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 85°C
Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C
–
9.88
10.13
3
–
–
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
–
Nonlinearity
– 1
–
–
1
VOE(TA)
±5
–
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 85°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
–
±15
±25
230
–1.2
1.2
–
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 200 A
–
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 85°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 2.5 V.
4Percentage of IP. Output filtered.
X200U PERFORMANCE CHARACTERISTICS1: TOP = –40°C to 85°C, VCC= 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ.
–
Max.
Units
A
Primary Sampled Current
IP
0
200
–
SensTA
Full scale of IP applied for 5 ms, TA = 25°C
–
20
mV/A
mV/A
mV/A
mV
%
Sensitivity
Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 85°C
Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C
–
19.7
20.3
6
–
–
–
Noise2
VNOISE
ELIN
TA= 25°C, 10 nF on VIOUT pin to GND
Up to full scale of IP, IP applied for 5 ms
IP = 0 A, TA = 25°C
–
–
Nonlinearity
– 1
–
–
1
VOE(TA)
±5
–
mV
mV
mV
mA
%
Electrical Offset Voltage3
VOE(TOP)HT IP = 0 A, TOP = 25°C to 85°C
VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C
–
±20
±35
230
–1.2
1.2
–
–
–
Magnetic Offset Error
Total Output Error4
IERROM
IP = 0 A, TA = 25°C, after excursion of 200 A
–
–
ETOT(HT) Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 85°C
ETOT(LT) Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C
–
–
–
–
%
1See Characteristic Performance Data page for parameter distributions over temperature range.
2±3 sigma noise voltage.
3VOE(TOP) drift is referred to ideal VIOUT(Q) = 0.6 V.
4Percentage of IP. Output filtered.
Allegro MicroSystems, Inc.
115 Northeast Cutoff
10
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Characteristic Performance Data
Data taken using the ACS758LCB-50B
Accuracy Data
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
30
20
42.0
42.5
41.0
40.5
40.0
39.5
39.0
38.5
10
0
-10
-20
-30
-40
-50
–50
-25
0
25
50
75
100
125
150
–50
-25
0
25
50
75
100
125
150
TA (°C)
TA (°C)
Nonlinearity versus Ambient Temperature
Symmetry versus Ambient Temperature
100.40
100.35
100.30
100.25
100.20
100.15
100.10
100.05
100.00
99.95
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
–50
-25
0
25
50
75
100
125
150
–50
-25
0
25
50
75
100
125
150
TA (°C)
TA (°C)
Magnetic Offset Error versus Ambient Temperature
Total Output Error versus Ambient Temperature
140
120
100
80
6
5
4
3
2
1
60
0
-1
-2
-3
-4
40
20
0
–50
-25
0
25
50
75
100
125
150
–50
-25
0
25
50
75
100
125
150
TA (°C)
T
A (°C)
Typical Maximum Limit
Typical Minimum Limit
Mean
Allegro MicroSystems, Inc.
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Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Characteristic Performance Data
Data taken using the ACS758LCB-100B
Accuracy Data
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
25
20
15
10
5
21.2
21.0
20.8
20.6
20.4
20.2
20.0
19.8
19.6
19.4
19.2
0
-5
-10
-15
-20
-25
–50
-25
0
25
50
75
100
125
150
–50
-25
0
25
50
75
100
125
150
TA (°C)
TA (°C)
Nonlinearity versus Ambient Temperature
Symmetry versus Ambient Temperature
0.40
100.6
100.5
100.4
100.3
100.2
100.1
100.0
99.9
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
99.8
99.7
–50
-25
0
25
50
75
100
125
150
–50
-25
0
25
50
75
100
125
150
TA (°C)
TA (°C)
Magnetic Offset Error versus Ambient Temperature
Total Output Error versus Ambient Temperature
200
190
180
170
160
150
130
120
110
100
6
5
4
3
2
1
0
-1
-2
-3
-4
-5
–50
-25
0
25
50
75
100
125
150
–50
-25
0
25
50
75
100
125
150
TA (°C)
TA (°C)
Typical Maximum Limit
Typical Minimum Limit
Mean
Allegro MicroSystems, Inc.
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1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Characteristic Performance Data
Data taken using the ACS758KCB-150B
Accuracy Data
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
20
15
10
5
14.0
13.8
13.6
13.4
13.2
13.0
12.8
12.6
0
-5
-10
-15
-20
-25
-30
–60
–40
–20
0
20
40
60
80
100
120
140
140
140
–60
–40
–20
0
20
40
60
80
100
120
140
140
140
TA (°C)
TA (°C)
Nonlinearity versus Ambient Temperature
Symmetry versus Ambient Temperature
100.7
100.6
100.5
100.4
100.3
100.2
100.1
100.0
99.9
0.30
0.25
02.0
0.15
0.10
0.05
0
99.8
–60
–40
–20
0
20
40
60
80
100
120
–60
–40
–20
0
20
40
60
80
100
120
TA (°C)
TA (°C)
Magnetic Offset Error versus Ambient Temperature
Total Output Error versus Ambient Temperature
300
250
200
150
100
50
5
4
3
2
1
0
-1
-2
-3
-4
-5
-6
0
–60
–40
–20
0
20
40
60
80
100
120
–60
–40
–20
0
20
40
60
80
100
120
TA (°C)
TA (°C)
Typical Maximum Limit
Typical Minimum Limit
Mean
Allegro MicroSystems, Inc.
115 Northeast Cutoff
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Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Characteristic Performance Data
Data taken using the ACS758ECB-200B
Accuracy Data
Electrical Offset Voltage versus Ambient Temperature
Sensitivity versus Ambient Temperature
25
20
15
10
5
10.4
10.3
10.2
10.1
10.0
9.9
0
-5
-10
-15
-20
-25
-30
9.8
9.7
9.6
9.5
–60
–40
–20
0
20
40
60
80
100
120
140
140
140
–60
–40
–20
0
20
40
60
80
100
120
140
TA (°C)
TA (°C)
Nonlinearity versus Ambient Temperature
Symmetry versus Ambient Temperature
0.16
100.8
100.6
100.4
100.2
100.0
99.8
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
99.6
–60
–40
–20
0
20
40
60
80
100
120
–60
–40
–20
0
20
40
60
80
100
120
140
TA (°C)
TA (°C)
Magnetic Offset Error versus Ambient Temperature
Total Output Error versus Ambient Temperature
350
300
250
200
150
100
50
4
3
2
1
0
-1
-2
-3
-4
-5
-6
0
–60
–40
–20
0
20
40
60
80
100
120
140
–60
–40
–20
0
20
40
60
80
100
120
TA (°C)
TA (°C)
Typical Maximum Limit
Typical Minimum Limit
Mean
Allegro MicroSystems, Inc.
115 Northeast Cutoff
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Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Characteristic Performance Data
Data taken using the ACS758LCB-100
Timing Data
Rise Time
Propagation Delay Time
IP (20 A/div.)
IP (20 A/div.)
VIOUT (0.5 V/div.)
VIOUT (0.5 V/div.)
997 ns
2.988 μs
t (2 μs/div.)
t (2 μs/div.)
Response Time
Power-on Delay
VCC
IP (20 A/div.)
V
IOUT (0.5 V/div.)
9.034 μs
VIOUT (1 V/div.)
(IP = 60 A DC)
3.960 μs
t (2 μs/div.)
t (2 μs/div.)
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115 Northeast Cutoff
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Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Characteristic Definitions
Definitions of Accuracy Characteristics
Sensitivity (Sens). The change in device output in response to a
1A change through the primary conductor. The sensitivity is the
product of the magnetic circuit sensitivity (G/A) and the linear
IC amplifier gain (mV/G). The linear IC amplifier gain is pro-
grammed at the factory to optimize the sensitivity (mV/A) for the
half-scale current of the device.
The ratiometric change (%) in the quiescent voltage output is
defined as:
VIOUTQ(V
VIOUTQ(5V)
)
CC
$VIOUTQ($V)
s ꢀꢁꢁ%
=
VCC
5 V
and the ratiometric change (%) in sensitivity is defined as:
Sens(V
Sens(ꢃVꢂ
5 V
ꢂ
CC
Noise (VNOISE). The noise floor is derived from the thermal and
shot noise observed in Hall elements. Dividing the noise (mV)
by the sensitivity (mV/A) provides the smallest current that the
device is able to resolve.
$Sens($Vꢂ
s ꢀꢁꢁ%
=
VCC
Quiescent output voltage (VIOUT(Q)). Quiescent output voltage
(VIOUT(Q)). The output of the device when the primary current is
zero. For bidirectional devices, it nominally remains at VCC ⁄ 2.
Thus, VCC = 5 V translates into VIOUT(QBI) = 2.5 V. For unidirec-
tional devices, it nominally remains at 0.12 × VCC . Thus, VCC
= 5 V translates into VIOUT(QUNI) = 0.6 V. Variation in VIOUT(Q)
can be attributed to the resolution of the Allegro linear IC quies-
cent voltage trim, magnetic hysteresis, and thermal drift.
Nonlinearity (ELIN). The degree to which the voltage output
from the IC varies in direct proportion to the primary current
through its half-scale amplitude. Nonlinearity in the output can be
attributed to the saturation of the flux concentrator approaching
the half-scale current. The following equation is used to derive
the linearity:
Electrical offset voltage (VOE). The deviation of the device out-
put from its ideal quiescent value of VCC ⁄ 2 for bidirectional and
0.1 × VCC for unidirectional devices, due to nonmagnetic causes.
V
–VIOUT(Q)
Δ gain × % sat (
IOUT_half-scale amperes
2 (VIOUT_quarter-scale amperes –VIOUT(Q)
100
1–
{
[
) [ {
)
Magnetic offset error (IERROM). The magnetic offset is due to
the residual magnetism (remnant field) of the core material. The
magnetic offset error is highest when the magnetic circuit has
been saturated, usually when the device has been subjected to a
full-scale or high-current overload condition. The magnetic offset
is largely dependent on the material used as a flux concentrator.
The larger magnetic offsets are observed at the lower operating
temperatures.
where
∆ gain = the gain variation as a function of temperature
changes from 25ºC,
% sat = the percentage of saturation of the flux concentra-
tor, which becomes significant as the current being sampled
approaches half-scale ±IP , and
VIOUT_half-scale amperes = the output voltage (V) when the
sampled current approximates half-scale ±IP .
Total Output Error (ETOT). The maximum deviation of the
actual output from its ideal value, also referred to as accuracy,
illustrated graphically in the output voltage versus current chart
on the following page.
Symmetry (ESYM). The degree to which the absolute voltage
output from the IC varies in proportion to either a positive or
negative half-scale primary current. The following equation is
used to derive symmetry:
ETOT is divided into four areas:
0 A at 25°C. Accuracy at the zero current flow at 25°C, with-
out the effects of temperature.
VIOUT_+ half-scale amperes –VIOUT(Q)
100
0 A over Δ temperature. Accuracy at the zero current flow
VIOUT(Q) – VIOUT_–half-scale amperes
including temperature effects.
Half-scale current at 25°C. Accuracy at the the half-scale current
at 25°C, without the effects of temperature.
Ratiometry. The device features a ratiometric output. This
means that the quiescent voltage output, VIOUTQ, and the mag-
netic sensitivity, Sens, are proportional to the supply voltage, VCC
Half-scale current over Δ temperature. Accuracy at the half-
.
scale current flow including temperature effects.
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1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Definitions of Dynamic Response Characteristics
Power-On Time (tPO). When the supply is ramped to its operat-
ing voltage, the device requires a finite time to power its internal
components before responding to an input magnetic field.
Power-On Time, tPO , is defined as the time it takes for the output
voltage to settle within ±10% of its steady state value under an
applied magnetic field, after the power supply has reached its
minimum specified operating voltage, VCC(min), as shown in the
chart at right.
Rise time (tr). The time interval between a) when the device
reaches 10% of its full scale value, and b) when it reaches 90%
of its full scale value. The rise time to a step response is used to
derive the bandwidth of the device, in which ƒ(–3 dB) = 0.35/tr.
Both tr and tRESPONSE are detrimentally affected by eddy current
losses observed in the conductive IC ground plane.
Output Voltage versus Sampled Current
Total Output Error at 0 A and at Half-Scale Current
Accuracy
Over $Temp erature
Increasing VIOUT(V)
Accuracy
25°C Only
Bidirectional
Average
Primary Current
I (%)
90
V
IOUT
Accuracy
Over $Temp erature
Transducer Output
Accuracy
10
0
25°C Only
IP(min)
t
Rise Time, t
r
–IP (A)
+IP (A)
Half Scale
IP(max)
0 A
Decreasing VIOUT(V)
Propagation delay (tPROP). The time required for the device
output to reflect a change in the primary current signal. Propaga-
tion delay is attributed to inductive loading within the linear IC
package, as well as in the inductive loop formed by the primary
conductor geometry. Propagation delay can be considered as a
fixed time offset and may be compensated.
Accuracy
25°C Only
Accuracy
Over $Temp erature
Accuracy
Over $Temp erature
Increasing VIOUT(V)
Accuracy
25°C Only
Primary Current
I (%)
90
Unidirectional
Average
V
IOUT
Accuracy
Over $Temp erature
Transducer Output
0
Accuracy
25°C Only
t
Propagation Time, tPROP
–IP (A)
+IP (A)
Full Scale
IP(max)
0 A
Decreasing VIOUT(V)
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Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Chopper Stabilization Technique
Chopper Stabilization is an innovative circuit technique that is
used to minimize the offset voltage of a Hall element and an asso-
ciated on-chip amplifier. Allegro patented a Chopper Stabiliza-
tion technique that nearly eliminates Hall IC output drift induced
by temperature or package stress effects.
ponents which are beyond the user’s frequency range of interest.
As a result of this chopper stabilization approach, the output
voltage from the Hall IC is desensitized to the effects of tempera-
ture and mechanical stress. This technique produces devices that
have an extremely stable Electrical Offset Voltage, are immune to
thermal stress, and have precise recoverability after temperature
cycling.
This offset reduction technique is based on a signal modulation-
demodulation process. Modulation is used to separate the unde-
sired DC offset signal from the magnetically induced signal in the
frequency domain. Then, using a low-pass filter, the modulated
DC offset is suppressed while the magnetically induced signal
passes through the filter. The anti-aliasing filter prevents aliasing
from happening in applications with high frequency signal com-
This technique is made possible through the use of a BiCMOS
process that allows the use of low-offset and low-noise amplifiers
in combination with high-density logic integration and sample
and hold circuits.
Regulator
Clock/Logic
Low-Pass
Filter
Hall Element
Amp
Concept of Chopper Stabilization Technique
Allegro MicroSystems, Inc.
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Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Package CB, 5-pin package, leadform PFF
0.5
R1
R3
ꢄ 0.5
B
14.0±0.2
4
R2
1.50±0.10
3.0±0.2
5
4.0±0.2
4
21.4
3
1º±2°
A
3.5±0.2
ꢄ 0.8
ꢄ 1.5
17.5±0.2
13.00±0.10
1.91
PCB Layout Reference View
B
Branded
Face
4.40±0.10
2.9±0.2
NNNNNNN
TTT - AAA
5º±5°
+0.060
–0.030
1
2
3
0.381
10.00±0.10
3.5±0.2
LLLLLLL
YYWW
1
7.00±0.10
Standard Branding Reference View
C
N = Device part number
T = Temperature code
A = Amperage range
L = Lot number
Y = Last two digits of year of manufacture
W = Week of manufacture
= Supplier emblem
0.51±0.10
1.9±0.2
For Reference Only; not for tooling use (reference DWG-9111, DWG-9110)
Dimensions in millimeters
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
A Dambar removal intrusion
Perimeter through-holes recommended
B
C
Branding scale and appearance at supplier discretion
Creepage distance, current terminals to signal pins: 7.25 mm
Clearance distance, current terminals to signal pins: 7.25 mm
Package mass: 4.63 g typical
Allegro MicroSystems, Inc.
115 Northeast Cutoff
19
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Package CB, 5-pin package, leadform PSS
14.0±0.2
3.0±0.2
4.0±0.2
5
4
1.50±0.10
A
NNNNNNN
TTT - AAA
2.75±0.10
23.50±0.5
LLLLLLL
YYWW
13.00±0.10
4.40±0.10
1
Branded
Face
3.18±0.10
+0.060
Standard Branding Reference View
B
N = Device part number
T = Temperature code
A = Amperage range
11.0±0.05
0.381
–0.030
L = Lot number
1
2
3
Y = Last two digits of year of manufacture
W = Week of manufacture
= Supplier emblem
10.00±0.10
For Reference Only; not for tooling use (reference DWG-9111, DWG-9110)
Dimensions in millimeters
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
7.00±0.10
A Dambar removal intrusion
B
Branding scale and appearance at supplier discretion
0.51±0.10
1.9±0.2
Creepage distance, current terminals to signal pins: 7.25 mm
Clearance distance, current terminals to signal pins: 7.25 mm
Package mass: 4.63 g typical
Allegro MicroSystems, Inc.
115 Northeast Cutoff
20
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Thermally Enhanced, Fully Integrated, Hall Effect-Based
Linear Current Sensor IC with 100 μΩ Current Conductor
ACS758xCB
Revision History
Revision
Revision Date
Description of Revision
Update Unidirectional VIOUT(Q) and Isolation
specifications
Rev. 6
April 9, 2012
Copyright ©2008-2012, Allegro MicroSystems, Inc.
The products described herein are protected by U.S. patents: 6,781,359; and 7,265,531.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to per-
mit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the
information being relied upon is current.
Allegro’s products are not to be used in life support devices or systems, if a failure of an Allegro product 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.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use;
nor for any infringement of patents or other rights of third parties which may result from its use.
For the latest version of this document, visit our website:
www.allegromicro.com
Allegro MicroSystems, Inc.
115 Northeast Cutoff
21
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1.508.853.5000; www.allegromicro.com
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ALLEGRO
ACS759KCB-150B-PFF-T
The Allegro ACS759 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing.
ALLEGRO
ACS759KCB-150B-PSS-T
The Allegro ACS759 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing.
ALLEGRO
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