Data Sheet

Hall Effect Linear Current Sensor with Overcurrent
Fault Output for < 100 V Isolation Applications
ACS711
3
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
VCC
VIOUT
240 kΩ
FAULT
GND
Dynamic Offset
Cancellation
IP+
IP+
IP−
IP−
Sensitivity
Trim
Signal
Recovery
Power-on
Reset
D
Reset
Master Current
Supply
Sensitivity
Temperature
Coefficient Trim
To all subcircuits
Current Fault
Comparator
0 Ampere
Offset Adjust
Hall Current
Drive
C
LOAD
C
BYP
R
PU
V
CC
IP+
IP+
IP–
IP–
VCC
VIOUT
FAULT
GND
1
2
3
4
8
7
6
5
10
9
8
7
1
2
3
4
5 6
12
11
VCC VIOUT
GND
FAULT
NC
NC
NC
NC
IP+
IP+
IP–
IP–
Terminal List Table
Name
Number
Description
EX LC
GND 5 5 Signal ground terminal
¯
F
¯ ¯
A
¯
U
¯¯
L
¯ ¯
T
¯ 6
6 Overcurrent fault; active low
IP– 3 and 4 3 and 4 Terminals for current being sensed; fused internally
IP+ 1 and 2 1 and 2 Terminals for current being sensed; fused internally
NC 7, 8, 9, 10 – No connection; connect to GND for optimal ESD performance.
VCC 12 8 Device power supply terminal
VIOUT 11 7 Analog output signal
Functional Block Diagram
Pin-out Diagrams
LC PackageEX Package