ACS71240KLCBTR-010B5-115 [ALLEGRO]
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages;
| 型号： | ACS71240KLCBTR-010B5-115 |
| 厂家： | 
ALLEGRO MICROSYSTEMS |
| 描述： | Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages |
| 文件： | 总21页 (文件大小：1490K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACS71240
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
FEATURES AND BENEFITS
DESCRIPTION
• AEC-Q100 automotive qualified
The Allegro™ ACS71240 current sensor IC is an economical
• Differential Hall sensing rejects common-mode fields
• Integrated shield virtually eliminates capacitive coupling
from current conductor to die, greatly suppressing output
noise due to high dv/dt transients
• Industry-leading noise performance with greatly
improved bandwidth through proprietary amplifier and
filter design techniques
• High bandwidth 120 kHz analog output for faster
response times in control applications
• Patented integrated digital temperature compensation
circuitry allows for near closed-loop accuracy over
temperature in an open loop sensor
• Single supply operation with nonratiometric output at
3.3 and 5 V options
• Overcurrent FAULT available between 50% and 200% IP
with 1.5 µs (typ) response time
• Non-ratiometric output provides immunity to noisy supplies
• Small footprint QFN-12 with wettable flank and SOIC-8
suitable for space-constrained automotive applications
• 0.6 mΩ (QFN-12) or 1.2 mΩ (SOIC-8) primary
conductor resistance for low power loss and high inrush
current withstand capability
andprecisesolutionforACorDCcurrentsensinginindustrial,
automotive, commercial, and communications applications.
The device consists of a precise, low-offset linear Hall sensor
circuit with a copper conduction path located near the surface
of the die. Applied current flowing through this copper path
generatesamagneticfieldwhichissensedbytheintegratedHall
IC and converted into a proportional voltage. The resistance of
the integrated conductor is far less than typical sense resistors,
which reduces power loss and improves efficiency.
Rejection of external common-mode magnetic fields is
achieved through differential sensing, enabling high accuracy
in magnetically noisy environments. A precise voltage
proportional to the measured current is generated by the low-
offset, chopper-stabilized Hall front end.
Zero ampere output voltage and device sensitivity are
programmed at theAllegro factory to provide a high accuracy
solution across the full automotive temperature range.
The ACS71240 includes an integrated fault comparator for
simplified overcurrent detection. The ultrafast response time
provides the system with ample time to detect and protect
against short-circuit events.
• UL certified package (SOIC-8 only) for voltage isolation
TheACS71240isprovidedinsmall,low-profilesurface-mount
packageoptions:QFN-12withwettableflankandSOIC-8.The
leadframe is plated with 100% matte tin, which is compatible
with standard lead (Pb) free printed circuit board assembly
processes. Internally, the device is Pb-free, except for flip-
chiphigh-temperaturePb-basedsolderballs, currentlyexempt
from RoHS. The device is fully calibrated prior to shipment
from the factory.
PACKAGES:
12-contact QFN with wettable flank
3 mm × 3 mm × 0.75 mm
(EXB package)
8-pin SOIC
with internally fused path
(LCB package)
Not to scale
V
CC
VCC
CBYP
0.1 μF
IP+
IP+
SOIC-8 ONLY
TÜV America
Certificate Number:
U8V 14 11 54214 032
CB 14 11 54214 031
VIOUT
CLOAD
IP
ACS71240
RPU
FAULT
IP–
CB Certificate Number:
US-22334-A3-UL
IP–
GND
Figure 1: Typical Application
ACS71240-DS
MCO-0000621
March 7, 2019
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
SELECTION GUIDE
Sensitivity
(Typ)
Supply
Voltage, VCC
(V)
Optimized
Accuracy
Range, IPR (A)
Operating Ambient
Temperature Range,
TA (°C)
Fault Trip
Level (A)
Part Number
Package
Packing [1]
(mV/A)
132
44
ACS71240KEXBLT-010B3
ACS71240KEXBLT-030B3
ACS71240KEXBLT-050U5
ACS71240KEXBLT-010B3-115
ACS71240LLCBTR-010B3
ACS71240LLCBTR-030B3
ACS71240LLCBTR-045B5
ACS71240LLCBTR-050U5
3.3
3.3
5.0
3.3
3.3
3.3
5
±10
±30
50
±10
±30
50
12-contact QFN with
wettable flank
(EXB)
1500 pieces
per 7-inch reel
–40 to 125
–40 to 150
80
±10
±10
±30
±45
50
132
132
44
±11.5
±10
±30
±45
50
8-pin SOIC with
internally fused path
(LCB)
3000 pieces
per 13-inch reel
44.4
80
5
[1] Contact Allegro for additional packing options.
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115 ꢍ 115ꢚ ꢏPR
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Sꢈꢉꢉly ꢊꢉerating Leꢋel, ꢌCC
3 ꢍ 3.3 ꢌ
5 ꢍ 5.0 ꢌ
Cꢈrrent Polarity
ꢆ ꢍ ꢆidirectional
U ꢍ Unidirectional
ꢊꢉtimiꢎed Accꢈracy Range, ꢏPR
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LCꢆ ꢍ SꢊꢏC-ꢕ Pacꢐage
ꢊꢉerating ꢇemꢉeratꢈre Range, ꢇA
ꢃ ꢍ ꢖꢂ0ꢗC to 1ꢁ5ꢗC ꢘꢑꢒN-1ꢁ onlyꢙ
L ꢍ ꢖꢂ0ꢗC to 150ꢗC ꢘSꢊꢏC-ꢕ onlyꢙ
Allegro Cꢈrrent Sensor 5-digit ꢉart nꢈmꢔer
2
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
VCC
Notes
Rating
6
Units
Supply Voltage
V
V
V
Reverse Supply Voltage
Output Voltage
VCC(R)
VIOUT
–0.5
VCC + 0.7
–0.5
Reverse Output Voltage
FAULT Voltage
VIOUT(R)
VFAULT
VFAULT(R)
V
V
25
Reverse FAULT Voltage
–0.5
V
Range K (QFN-12 package)
Range L (SOIC-8 package)
–40 to 125
–40 to 150
165
°C
°C
°C
Operating Ambient Temperature Range
TA
Junction Temperature
TJ(MAX)
Tstg
Storage Temperature Range
–65 to 170
°C
ISOLATION CHARACTERISTICS (for SOIC-8 package only)
Characteristic
Symbol
Notes
Value
Units
Tested ±5 pulses at 2/minute in compliance to IEC 61000-4-5
1.2 µs (rise) / 50 µs (width).
Dielectric Surge Strength Test Voltage
VSURGE
6000
V
Agency type-tested for 60 seconds per UL 60950-1
(edition 2); production-tested at VISO for 1 second, in
accordance with UL 60950-1 (edition 2)
Dielectric Strength Test Voltage
VISO
2400
VRMS
420
297
4.2
VPK or VDC
VRMS
Maximum approved working voltage for basic (single)
isolation according to UL 60950-1 (edition 2)
Working Voltage for Basic Isolation
VWVBI
Clearance
Creepage
Dcl
Dcr
Minimum distance through air from IP leads to signal leads
mm
Minimum distance along package body from IP leads to
signal leads
4.2
mm
ISOLATION CHARACTERISTICS (for QFN-12 package only)
Characteristic
Symbol
Notes
Value
Units
Working Voltage for Basic Isolation [1]
VWVBI
Voltage applied between pins 1-4 and 5-12
100
VPK or VDC
[1] Based on characterization. No agency testing was conducted.
3
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
PINOUT DIAGRAMS AND TERMINAL LIST TABLES
Terminal List Table (QFN-12)
Number
Name
Description
Positive terminals for current being sensed; fused internally
Negative terminals for current being sensed; fused internally
Signal ground terminal
IP+
IP+
IP–
IP–
1
2
3
4
10 NC
1, 2
IP+
9
8
7
NC
NC
NC
3, 4
IP–
5
GND
FAULT
NC
6
7, 8, 9, 10
11
Overcurrent fault; active low
No connection; connect to ground for optimal ESD performance
Analog output signal
VIOUT
VCC
12
Device power supply terminal
Package EX, 12-Pin QFN
Pinout Diagram
Terminal List Table (SOIC-8)
Number
Name
Description
Positive terminals for current being sensed; fused internally
Negative terminals for current being sensed; fused internally
Signal ground terminal
1, 2
3, 4
5
IP+
IP+
IP+
IP–
IP–
1
2
3
4
8
7
6
5
VCC
VIOUT
FAULT
GND
IP–
GND
FAULT
VIOUT
VCC
6
Overcurrent fault; active low
7
Analog output signal
8
Device power supply terminal
Package LC, 8-Pin SOIC
Pinout Diagram
4
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
ꢃCC
Master Cꢂrrent
Sꢂꢁꢁly
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Power ꢆn
Reset
ꢉꢉPRꢆM and
Control Logic
ꢀemꢁeratꢂre
Sensor
Programming
Control
ꢄAULꢀ
ꢄaꢂlt ꢈelay
Logic
Hall
Cꢂrrent
ꢈriꢋe
ꢄaꢂlt
Comꢁarator
ꢆꢊꢊset
Control
Sensitiꢋity
Control
ꢅPꢌ
ꢅPꢌ
ꢈynamic ꢆꢊꢊset
Cancellation
ꢃꢅꢆUꢀ
ꢅP–
ꢅP–
ꢇNꢈ
Functional Block Diagram
5
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
COMMON ELECTRICAL CHARACTERISTICS: Valid through the full range of TA and VCC, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
ELECTRICAL CHARACTERISTICS
5 V variant
4.5
3.0
–
5.0
3.3
10
5.5
3.6
12
12
4.7
–
V
V
Supply Voltage
Supply Current
VCC
3.3 V variant
5 V variant, no load on VIOUT
3.3 V variant, no load on VIOUT
VIOUT to GND
mA
mA
nF
ICC
–
7.5
–
Output Capacitance Load
Output Resistive Load
CL
RL
–
VIOUT to GND
10
–
–
kΩ
QFN-12 package
0.6
1.2
10
–
mΩ
mΩ
G/A
G/A
G/A
G/A
%
Primary Conductor Resistance
Primary Hall Coupling Factor
RIP
G1
TA = 25°C
TA = 25°C
SOIC-8 package
QFN-12 package
SOIC-8 package
QFN-12 package
SOIC-8 package
–
–
–
–
–
11
–
–
–2
–
Secondary Hall Coupling Factor
Hall Plate Sensitivity Matching
Common Mode Field Rejection
G2
TA = 25°C
TA = 25°C
–
–2.8
±1
–
Sensmatch
CMFR
–
–
QFN-12 package
SOIC-8 package
–
1.2
0.6
–
mA/G
mA/G
Offset due to DC
common field
–
–
TA = 25°C, CL = 1 nF; input current step causing
1 V output swing
Rise Time
tr
–
–
3
4 [2]
μs
μs
TA = 25°C, CL = 1 nF; input current step causing
1 V output swing
Propagation Delay
tpd
1.6
2.2 [2]
TA = 25°C, CL = 1 nF; input current step causing
1 V output swing
Response Time
Bandwidth
tRESPONSE
BW
–
–
–
4
4.9 [2]
μs
Small signal –3 dB; CL = 1 nF
120
100
–
–
kHz
µARMS
√Hz
/
/
VCC = 5.0 V, input referred, TA = 25°C, CL = 1 nF
Noise Density
IND
µARMS
√Hz
VCC = 3.3 V, input referred, TA = 25°C, CL = 1 nF
150
VCC = 5.0 V, input referred, TA = 25°C, CL = 1 nF
VCC = 3.3 V, input referred, TA = 25°C, CL = 1 nF
–
52
78
–
–
–
mARMS
mARMS
%
Noise
IN
–
Up to IP = 10 A
QFN-12 package
–1
1
Nonlinearity
ELIN
Through full range of IP SOIC-8 package
–1
–
1
%
V
V
V
CC = VCC ±10%, TA = 25°C, DC to 1 kHz
CC = VCC ±10%, TA = 25°C, 1 kHz to 20 kHz
CC = VCC ±10%, TA = 25°C, 20 kHz to 60 kHz
–
40
30
20
–
–
dB
Power Supply Rejection Ratio
PSRR
–
–
dB
–
VCC – 0.3
–
–
dB
VSAT_H
VSAT_L
RL = 10 kΩ
RL = 10 kΩ
–
V
Output Saturation Voltage[3]
Power-On Time
–
0.3
V
Output reaches 90% of steady-state level,
TA = 25°C, IP = IPR(max) applied
tPO
–
80
–
μs
Shorted Output-to-Ground Current
Shorted Output-to-VCC Current
ISC(GND)
ISC(VCC)
TA = 25°C
TA = 25°C
–
–
30
–
–
mA
mA
1.8
Continued on next page...
6
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
COMMON ELECTRICAL CHARACTERISTICS (continued): Valid through the full range of TA and VCC, unless otherwise specified
Characteristic
FAULT CHARACTERISTICS
FAULT Operating Point
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
[4]
IFAULT
IF(HYS)
RPU
–
3
±1 × IPR
–
–
A
%
kΩ
V
FAULT Current Hysteresis
FAULT Output Pullup Resistor
FAULT Output Voltage
Percent of IPR(MAX)
5
–
–
10
–
500
0.3
VOL
RPU = 10 kΩ, during fault condition
Time from |IP| rising above |IFAULT| until VFAULT
VOL(MAX). 100 pF from FAULT to GND.
<
FAULT Response Time
tFAULT
–
1.5
2.5 [5]
µs
Input current step 20% above IFAULT with rise time
≤ 1 µs.
IFAULT, TA = 25°C
TA = –40°C or TA(MAX)
–10
–10
±3.5
±5
10
10
%
%
FAULT Error
EF
[1] Typical values with ± are 3 sigma values.
[2] Guaranteed by design. Limit calculated using 6 sigma. Not tested in production.
[3] The sensor IC will continue to respond to current beyond the range of IP until the high or low saturation voltage; however, the nonlinearity in this region will be worse than
through the rest of the measurement range.
[4] Unless otherwise specified, contact Allegro for alternative fault levels. Available from ±0.5 to 2 × IPR
[5] Not tested in production.
.
7
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
ACS71240KEXBLT-010B3 PERFORMANCE CHARACTERISTICS: Over full range of TA, VCC = 3.3 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
NOMINAL PERFORMANCE
Optimized Sensing Range
Sensitivity
IPR
–10
–
–
10
–
A
mV/A
V
Sens
IPR(min) < IP < IPR(max)
Bidirectional, IP = 0 A
132
1.65
Zero-Current Output Voltage
ACCURACY PERFORMANCE
VIOUT(Q)
–
–
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
–2.5
–6
±1.4
±1.8
2.5
6
%
%
Total Output Error [2]
ETOT
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE / (Sens × IP)
IP = 10 A, TA = 25°C to 125°C
–2
±1.1
±1.7
±9.7
±8.5
2
%
%
Sensitivity Error
ESENS
IP = 10 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 125°C
IP = 0 A, TA = –40°C to 25°C
–5.5
–15
–30
5.5
15
30
mV
mV
Offset Voltage Error
VOE
ACCURACY PERFORMANCE INCLUDING LIFETIME DRIFT [4]
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 125°C
IP = 0 A, TA = –40°C to 25°C
–5.7
–6
±1.8
±1.5
±1.2
±1.2
±4.5
±4.3
5.7
6
%
%
Total Output Error Including
Lifetime Drift [5]
ETOT_drift
ESENS_drift
VOE_drift
–5.1
–5.6
–28
–30
5.1
5.6
28
30
%
Sensitivity Error Including
Lifetime Drift [6]
%
mV
mV
Offset Voltage Error Including
Lifetime Drift [7]
[1] Typical values with ± are 3 sigma values, except for lifetime drift, which are the average value including drift (from the worst case stress) after AEC-Q100 qualification.
[2] Percentage of IP.
[3] A single device will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output
error specification.
[4] Lifetime drift characteristics are based on AEC-Q100 qualification results.
[5] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 6.1%.
[6] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 4%.
[7] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 22 mV.
ACS71240KEXBLT-010B3-115 Variant
Characteristic
NON-STANDARD FAULT CHARACTERISTICS
FAULT Operating Point IFAULT
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
–
±1.15 × IPR
–
A
[1] Typical values with ± are 3 sigma values
8
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
ACS71240KEXBLT-030B3 PERFORMANCE CHARACTERISTICS: Over full range of TA, VCC = 3.3 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
NOMINAL PERFORMANCE
Optimized Sensing Range
Sensitivity
IPR
–30
–
–
30
–
A
mV/A
V
Sens
IPR(min) < IP < IPR(max)
Bidirectional, IP = 0 A
44
Zero-Current Output Voltage
ACCURACY PERFORMANCE
VIOUT(Q)
–
1.65
–
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
–2.5
–6
±0.8
±1.9
2.5
6
%
%
Total Output Error [2]
ETOT
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE / (Sens × IP)
IP = 10 A, TA = 25°C to 125°C
–2
±0.9
±1.5
2
%
%
Sensitivity Error
ESENS
IP = 10 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 125°C
IP = 0 A, TA = –40°C to 25°C
–5.5
–15
–30
5.5
15
30
±3.71
±7.1
mV
mV
Offset Voltage Error
VOE
ACCURACY PERFORMANCE INCLUDING LIFETIME DRIFT [4]
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 125°C
IP = 0 A, TA = –40°C to 25°C
–5.7
–6
±1.8
±1.5
±1.2
±1.2
±4.5
±4.3
5.7
6
%
%
Total Output Error Including
Lifetime Drift [5]
ETOT_drift
ESENS_drift
VOE_drift
–5.1
–5.6
–28
–30
5.1
5.6
28
30
%
Sensitivity Error Including
Lifetime Drift [6]
%
mV
mV
Offset Voltage Error Including
Lifetime Drift [7]
[1] Typical values with ± are 3 sigma values, except for lifetime drift, which are the average value including drift (from the worst case stress) after AEC-Q100 qualification.
[2] Percentage of IP.
[3] A single device will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output
error specification.
[4] Lifetime drift characteristics are based on AEC-Q100 qualification results.
[5] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 6.1%.
[6] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 4%.
[7] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 22 mV.
9
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
ACS71240KEXBLT-050U5 PERFORMANCE CHARACTERISTICS: Over full range of TA, VCC = 5.0 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
NOMINAL PERFORMANCE
Optimized Sensing Range
Sensitivity
IPR
0
–
–
–
50
–
A
mV/A
V
Sens
IPR(min) < IP < IPR(max)
Unidirectional, IP = 0 A
80
0.5
Zero-Current Output Voltage
ACCURACY PERFORMANCE
VIOUT(Q)
–
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
–2.5
–6
±1.2
±3.6
2.5
6
%
%
Total Output Error [2]
ETOT
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE / (Sens × IP)
IP = 10 A, TA = 25°C to 125°C
–2
±0.9
±3.3
±4.6
±6.3
2
%
%
Sensitivity Error
ESENS
IP = 10 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 125°C
IP = 0 A, TA = –40°C to 25°C
–5.5
–10
–30
5.5
10
30
mV
mV
Offset Voltage Error
VOE
ACCURACY PERFORMANCE INCLUDING LIFETIME DRIFT [4]
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
IP = 10 A, TA = 25°C to 125°C
IP = 10 A, TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 125°C
IP = 0 A, TA = –40°C to 25°C
–5.7
–6
±1.8
±1.5
±1.2
±1.2
±4.5
±4.3
5.7
6
%
%
Total Output Error Including
Lifetime Drift [5]
ETOT_drift
ESENS_drift
VOE_drift
–5.1
–5.6
–28
–30
5.1
5.6
28
30
%
Sensitivity Error Including
Lifetime Drift [6]
%
mV
mV
Offset Voltage Error Including
Lifetime Drift [7]
[1] Typical values with ± are 3 sigma values, except for lifetime drift, which are the average value including drift (from the worst case stress) after AEC-Q100 qualification.
[2] Percentage of IP.
[3] A single device will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output
error specification.
[4] Lifetime drift characteristics are based on AEC-Q100 qualification results.
[5] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 6.1%.
[6] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 4%.
[7] All devices stayed within min/max limits throughout AEC-Q100 qualification. The worst drift observed was 22 mV.
10
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
ACS71240LLCBTR-010B3 PERFORMANCE CHARACTERISTICS: Over full range of TA, VCC = 3.3 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
NOMINAL PERFORMANCE
Optimized Sensing Range
Sensitivity
IPR
–10
–
–
10
–
A
mV/A
V
Sens
IPR(min) < IP < IPR(max)
Bidirectional, IP = 0 A
132
1.65
Zero-Current Output Voltage
ACCURACY PERFORMANCE
VIOUT(Q)
–
–
IP = IPR(max), TA = 25°C to 150°C
IP = IPR(max), TA = –40°C to 25°C
–2
–6
±1
2
6
%
%
Total Output Error [2]
ETOT
±2.4
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE / (Sens × IP)
IP = IPR(max), TA = 25°C to 150°C
–1.5
–5.5
–10
–30
±0.84
±2.3
±6.7
±10
1.5
5.5
10
%
%
Sensitivity Error
ESENS
IP = IPR(max), TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
mV
mV
Offset Voltage Error
VOE
30
[1] Typical values with ± are 3 sigma values. All devices stayed within limits during AEC-Q100 qualification.
[2] Percentage of IP, with IP = IPR(max)
.
[3] A single device will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output
error specification.
ACS71240LLCBTR-030B3 PERFORMANCE CHARACTERISTICS: Over full range of TA, VCC = 3.3 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
NOMINAL PERFORMANCE
Optimized Sensing Range
Sensitivity
IPR
–30
–
–
30
–
A
mV/A
V
Sens
IPR(min) < IP < IPR(max)
Bidirectional, IP = 0 A
44
Zero-Current Output Voltage
ACCURACY PERFORMANCE
VIOUT(Q)
–
1.65
–
IP = IPR(max), TA = 25°C to 150°C
IP = IPR(max), TA = –40°C to 25°C
–2
–6
±0.6
±1.4
2
6
%
%
Total Output Error [2]
ETOT
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE / (Sens × IP)
IP = IPR(max), TA = 25°C to 150°C
–1.9
–5.5
–10
–30
±0.53
±1.1
±7.2
±9.5
1.9
5.5
10
%
%
Sensitivity Error
ESENS
IP = IPR(max), TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
mV
mV
Offset Voltage Error
VOE
30
[1] Typical values with ± are 3 sigma values. All devices stayed within limits during AEC-Q100 qualification.
[2] Percentage of IP, with IP = IPR(max)
.
[3] A single device will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output
error specification.
11
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
ACS71240LLCBTR-045B5 PERFORMANCE CHARACTERISTICS: Over full range of TA, VCC = 5 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
NOMINAL PERFORMANCE
Optimized Sensing Range
Sensitivity
IPR
–45
–
–
45
–
A
mV/A
V
Sens
IPR(min) < IP < IPR(max)
Bidirectional, IP = 0 A
44.4
2.5
Zero-Current Output Voltage
ACCURACY PERFORMANCE
VIOUT(Q)
–
–
IP = IPR(max), TA = 25°C to 150°C
IP = IPR(max), TA = –40°C to 25°C
–2
–6
±0.73
±1.4
2
6
%
%
Total Output Error [2]
ETOT
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE / (Sens × IP)
IP = IPR(max), TA = 25°C to 150°C
–1.9
–5.5
–10
–30
±0.63
±1.4
±6.9
±7.2
1.9
5.5
10
%
%
Sensitivity Error
ESENS
IP = IPR(max), TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
mV
mV
Offset Voltage Error
VOE
30
[1] Typical values with ± are 3 sigma values. All devices stayed within limits during AEC-Q100 qualification.
[2] Percentage of IP, with IP = IPR(max)
.
[3] A single device will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output
error specification.
ACS71240LLCBTR-050U5 PERFORMANCE CHARACTERISTICS: Over full range of TA, VCC = 5.0 V, unless otherwise specified
Characteristic
Symbol
Test Conditions
Min.
Typ. [1]
Max.
Unit
NOMINAL PERFORMANCE
Optimized Sensing Range
Sensitivity
IPR
0
–
–
–
50
–
A
mV/A
V
Sens
IPR(min) < IP < IPR(max)
Unidirectional, IP = 0 A
80
0.5
Zero-Current Output Voltage
ACCURACY PERFORMANCE
VIOUT(Q)
–
IP = IPR(max), TA = 25°C to 150°C
IP = IPR(max), TA = –40°C to 25°C
–2
–6
±1.1
2
6
%
%
Total Output Error [2]
ETOT
±3.75
TOTAL OUTPUT ERROR COMPONENTS [3] ETOT = ESENS + 100 × VOE / (Sens × IP)
IP = IPR(max), TA = 25°C to 150°C
–1.9
–5.5
–10
–30
±1.1
±3.8
±4
1.9
5.5
10
%
%
Sensitivity Error
ESENS
IP = IPR(max), TA = –40°C to 25°C
IP = 0 A, TA = 25°C to 150°C
IP = 0 A, TA = –40°C to 25°C
mV
mV
Offset Voltage Error
VOE
±5.5
30
[1] Typical values with ± are 3 sigma values. All devices stayed within limits during AEC-Q100 qualification.
[2] Percentage of IP, with IP = IPR(max)
.
[3] A single device will not have both the maximum/minimum sensitivity error and maximum/minimum offset voltage, as that would violate the maximum/minimum total output
error specification.
12
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
FUNCTIONAL DESCRIPTION
Power-On
Power-On Reset Operation
Power-On Reset (POR) refers to the voltage at which the device
effectively turns on. In order to ensure accuracy of readings, the
part remains off or “in POR” until the voltage reaches a point at
which the device can be trusted. At this point the output leaves
high Z and begins reporting the current.
As VCC ramps up, the device output is high impedance (pink sec-
tion) until VCC reaches POR.
Power-Off
As VCC drops below POR the device output will enter a high
impedance state.
The descriptions in this section assume: TA = 25°C, no output load
(RL, CL), and no significant magnetic field is present. Refer to
the scope plot in Figure 2 for the intended power on/off profile of
the ACS71240. The device tested below contains a pull-down on
VIOUT, forcing the output voltage to 0 V during the high Z portion.
Figure 2: Power On/Off Profile of ACS71240
ICC = Green, VIOUT = Red, VCC = Yellow
13
Allegro MicroSystems, LLC
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Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
DEFINITIONS OF ACCURACY CHARACTERISTICS
Sensitivity (Sens). The change in sensor IC output in response to
a 1A change through the primary conductor. The sensitivity is the
product of the magnetic circuit sensitivity (G/A) (1 G = 0.1 mT)
and the linear IC amplifier gain (mV/G). The linear IC ampli-
fier gain is programmed at the factory to optimize the sensitivity
(mV/A) for the full-scale current of the device.
Accuracy Across
Temperature
Increasing
IOUT (V)
V
Accuracy at
25°C Only
Ideal VIOUT
Accuracy Across
Temperature
Nonlinearity (ELIN). The nonlinearity is a measure of how linear
the output of the sensor IC is over the full current measurement
range. The nonlinearity is calculated as:
Accuracy at
25°C Only
IPR(min)
–IP (A)
+IP (A)
VIOUT(IPR(max)) – VIOUT(Q)
VIOUT(Q)
1–
=
ELIN
• 100(%)
2 • VIOUT(IPR(max)/2) – VIOUT(Q)
Zero-Current Output Voltage (VIOUT(Q)). The output of the
sensor when the primary current is zero. For unipolar devices
this value will be 10% of operating voltage, 0.5 V and 0.33 V for
5 V and 3.3 V respectively. For bidirectional devices, the output
will be 50% of the operating voltage, 2.5 V and 1.65 V for 5 V
and 3.3 V devices respectively. Since the ACS71240 is a non-
ratiometric part, these values will be stable over VCC variations.
Variation in VIOUT(Q) can be attributed to the resolution of the
Allegro linear IC quiescent voltage trim and thermal drift.
Full Scale IP
IPR(max)
0 A
Accuracy at
25°C Only
Decreasing
IOUT (V)
V
Accuracy Across
Temperature
Figure 3: Output Voltage versus Sensed Current
Offset Voltage (VOE). The deviation of the device output from its
ideal quiescent value due to nonmagnetic causes. To convert this
voltage to amperes, divide by the device sensitivity, Sens.
+E
TOT
Total Output Error (ETOT). The difference between the cur-
rent measurement from the sensor IC and the actual current (IP),
relative to the actual current. This is equivalent to the difference
between the ideal output voltage and the actual output voltage,
divided by the ideal sensitivity, relative to the current flowing
through the primary conduction path:
Across Temperature
25°C Only
VIOUT_ideal(IP) – VIOUT (IP)
ETOT (I )
P
=
• 100 (%)
Sensideal(IP) • IP
–I
P
+I
P
The Total Output Error incorporates all sources of error and is a
function of IP. At relatively high currents, ETOT will be mostly
due to sensitivity error, and at relatively low currents, ETOT will
be mostly due to Offset Voltage (VOE). In fact, at IP = 0, ETOT
approaches infinity due to the offset. This is illustrated in Figure
3 and Figure 4. Figure 3 shows a distribution of output voltages
versus IP at 25°C and across temperature. Figure 4 shows the cor-
responding ETOT versus IP.
–E
TOT
Figure 4: Total Output Error versus Sensed Current
14
Allegro MicroSystems, LLC
955 Perimeter Road
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Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
Power Supply Rejection Ratio (PSRR). The ratio of the change
on VIOUT to a change in VCC in dB.
ΔVCC
ΔVIOUT
PSRR = 20 log10
FAULT Error (EF). The difference between the current at which
the FAULT pin trips (IFAULT), relative to the ideal fault current
(IFAULT_ideal). This is equivalent to the difference between the
ideal fault current and the actual fault current divided by the ideal
current, and is defined as:
I
FAULT – IFAULT _ ideal
E
F
=
×100 (%)
I
FAULT _ ideal
15
Allegro MicroSystems, LLC
955 Perimeter Road
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www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
Fault Behavior
tꢀAULꢁ
tꢀAULꢁ
ꢀAULꢁ
The ACS71240 is available with both a latched and unlatched
FAULT pin output. Unless otherwise stated, the default operation
is unlatched. Contact Allegro for more details.
Unlatched Fault Behavior
ꢂꢀAULꢁ
In the event that the FAULT pin is unlatched, the FAULT output
will only assert while an overcurrent condition is present. When
an overcurrent condition occurs, the FAULT pin will be pulled
low within FAULT response time, tFAULT. When the overcurrent
condition is removed, another tFAULT will delay the release of the
line, after which the FAULT line will return to VCC with a time
constant based on the pull-up resistor and line capacitance.
ꢂAꢃꢃlied
Figure 5: Fault trip with response time
Latched Fault Behavior
FAULT
< tCLK
In the event that the fault pin is latched, the FAULT output will
assert when an overcurrent condition is present. The FAULT
pin will remain latched even after the overcurrent condition has
subsided. The FAULT pin will remain asserted until the device is
power-cycled.
tPW(MIN)
Latched
Unlatched
Fault Filtering
time
To prevent nuisance tripping while in latched mode, the
ACS71240 is available with a variety of minimum fault times,
which are the minimum period a fault event must be present
Figure 6: Fault event longer than tPW(MIN)
before the FAULT pin will latch. This minimum period, tPW(MIN)
may be 0 µs, 0.5 µs, or 1 µs, and is available upon request. Con-
tact Allegro for more details.
,
< tCLK
FAULT
In latched mode, there is an additional delay of 1 clock cycle
(tCLK < 150 ns) after the overcurrent event occurs. The fault
behavior for latched and unlatched modes are shown in Figure 6
and Figure 7.
Latched
tPW(MIN)
Unlatched
time
Figure 7: Fault event shorter than tPW(MIN)
16
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
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.
V
VCC
V
(typ.)
CC
V
IOUT
90% V
IOUT
VCC(min.)
tPO
t1
t2
t1= time at which power supply reaches
minimum specified operating voltage
t2= time at which output voltage settles
within ±10% of its steady state value
under an applied magnetic field
0
t
Figure 8: Power-On Time (tPO
)
Rise Time (tr). The time interval between a) when the sensor
reaches 10% of its full-scale value, and b) when it reaches 90% of
its full-scale value.
Primary Current
(%)
90
V
IOUT
Rise Time, t
r
Propagation Delay (tpd). The time interval between a) when
the sensed input current reaches 20% of its full-scale value, and
b) when the sensor output reaches 20% of its full-scale value.
20
10
0
t
Propagation Delay, t
pd
Figure 9: Rise Time (tr) and Propagation Delay (tpd)
Response Time (tRESPONSE). The time interval between a) when
the sensed input current reaches 90% of its final value, and b)
when the sensor output reaches 90% of its full-scale value.
Primary Current
(%)
90
V
IOUT
Response Time, t
RESPONSE
0
t
Figure 10: Response Time (tRESPONSE
)
17
Allegro MicroSystems, LLC
955 Perimeter Road
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Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
Common-Mode Field Rejection
The ACS71240 features two Hall-effect sensors used differen-
tially in order to eliminate stray field. The two sensors are placed
on opposite sides of the current loop. This allows the common
magnetic field to be determined and removed before the signal
is sent to the end user. Despite this common field rejection, it is
always best practice to reduce the amount of stray fields around
the current sensor as much as possible. See the Allegro Applica-
tions note on reducing common mode field for more details.
18
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
PACKAGE OUTLINE DRAWINGS
0.30
3.00 ±0.05
12
0.85
1.27
12
0.075 REF
ꢀIN
1
1
2
A
3.00 ±0.05
2.ꢁ0
1.00
0.80
ꢀIN
Branded Face
0.50
ꢄ
C
ꢁX
0.70
SEATINꢂ
PLANE
0.08
C
2.05 REF
2.70
0.50 BSC
0.75 ±0.05
C
PCB Layout Reference ꢑiew
ꢃ0.05
–0.07
0.25
F
1.3ꢔ
1
NNNN
ꢓꢓꢋꢋ
LLLL
0.40±0.10
B
0.20
1.7ꢁ
2
1
0.74
1.50
F
Standard Brandinꢉ Reference ꢑiew
E
F2
F
N ꢒ ꢄeꢏice part nuꢆber
12
ꢓ ꢒ Last two diꢉits of year of ꢆanufacture
ꢋ ꢒ ꢋeek of ꢆanufacture
L ꢒ Lot nuꢆber
0.05 REF
F1
F
1.31
2.20
For reference onlyꢈ not for toolinꢉ use (reference ꢊEꢄEC ꢀO-220ꢋEEꢄ
eꢅcept for fused current path and wettable flank)
ꢄiꢆensions in ꢆilliꢆeters
Eꢅact case and lead confiꢉuration at supplier discretion within liꢆits shown
A
B
Terꢆinal ꢇ1 ꢆark area
ꢄ
E
Coplanarity includes eꢅposed current path and terꢆinals
Brandinꢉ scale and appearance at supplier discretion
Fused sensed current path
C
Reference land pattern layout (reference IPC7351
QFN50P300X300X80-17ꢋ4ꢀ)ꢌ
ꢕall eleꢆents (F1 and F2)ꢌ not to scale
F
All pads a ꢆiniꢆuꢆ of 0.20 ꢆꢆ froꢆ all adꢍacent padsꢌ adꢍust as
necessary to ꢆeet application process reꢎuireꢆents and PCB layout
tolerancesꢌ when ꢆountinꢉ on a ꢆultilayer PCBꢈ therꢆal ꢏias at the
eꢅposed therꢆal pad land can iꢆproꢏe therꢆal dissipation (reference
EIAꢐꢊEꢄEC Standard ꢊESꢄ51-5)
Figure 11: Package EXB, 12-Contact QFN
with Fused Sensed Current Loop
and Wettable Flank
19
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
For Reference Only – Not for Tooling Use
(Reference MS-012AA)
Dimensions in millimeters – NOT TO SCALE
Dimensions exclusive of mold flash, gate burrs, and dambar protrusions
Exact case and lead configuration at supplier discretion within limits shown
8°
0°
4.90 0.10
1.27
0.65
8
8
0.25
0.17
5.60
6.00 0.20
3.90 0.10
A
1.04 REF
1.75
1
2
1
2
1.27
0.40
PCB Layout Reference View
C
0.25 BSC
SEATING PLANE
GAUGE PLANE
Branded Face
CC
8X
XXXXXXXX
Lot Number
1.75 MAX
0.10
C
SEATING
PLANE
0.51
0.31
0.25
0.10
1.27 BSC
1
A
Terminal #1 mark area
Standard Branding Reference View
B
Line 1, 2: 8 characters
B
C
Branding scale and appearance at supplier discretion
Belly Brand: 5 characters
Line 1: Part Number
Reference land pattern layout (reference IPC7351 SOIC127P600X175-8M);
all pads a minimum of 0.20 mm from all adjacent pads; adjust as necessary
to meet application process requirements and PCB layout tolerances.
Line 3: First 8 characters of Assembly Lot Number
Belly Brand: Country of Origin
Lot Number
Figure 12: Package LCB, 8-Pin SOIC
20
Allegro MicroSystems, LLC
955 Perimeter Road
Manchester, NH 03103-3353 U.S.A.
www.allegromicro.com
Automotive-Grade, Galvanically Isolated Current Sensor IC
with Common-Mode Field Rejection and Overcurrent Detection
in Small Footprint Low-Profile Packages
ACS71240
Revision History
Number
Date
Description
Initial release
–
March 7, 2019
Copyright 2019, Allegro MicroSystems, LLC
Allegro MicroSystems, LLC reserves the right to make, from time to time, such departures from the detail specifications as may be required to
permit 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 any devices or systems, including but not limited to life support devices or systems, in which a failure of
Allegro’s product can reasonably be expected to cause bodily harm.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, LLC assumes no responsibility for its
use; nor for any infringement of patents or other rights of third parties which may result from its use.
Copies of this document are considered uncontrolled documents.
For the latest version of this document, visit our website:
www.allegromicro.com
21
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相关型号：
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Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
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ACS71240KLCBTR-010U5-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBLT-010B3-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBLT-010B5-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBLT-010U3-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBLT-010U5-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBTR-010B3-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBTR-010B5-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBTR-010U3-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LEXBTR-010U5-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LLCBLT-010B3-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
ACS71240LLCBLT-010B5-115
Automotive-Grade, Galvanically Isolated Current Sensor IC with Common-Mode Field Rejection and Overcurrent Detection in Small Footprint Low-Profile Packages
ALLEGRO
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