Allegro ACS714 current sensor datasheet

Automotive Grade, Fully Integrated, Hall Effect-Based Linear Current Sensor
with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor
ACS714
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
VCC
(Pin 8)
(Pin 7)
VIOUT
R
F(INT)
GND
(Pin 5)
FILTER
(Pin 6)
Dynamic Offset
Cancellation
IP+
(Pin 1)
IP+
(Pin 2)
IP−
(Pin 3)
IP−
(Pin 4)
Sense
Trim
Signal
Recovery
Sense Temperature
Coefficient Trim
0 Ampere
Offset Adjust
Hall Current
Drive
+5 V
IP+
IP+
IP–
IP–
VCC
VIOUT
FILTER
GND
1
2
3
4
8
7
6
5
Terminal List Table
Number Name Description
1 and 2 IP+ Terminals for current being sensed; fused internally
3 and 4 IP– Terminals for current being sensed; fused internally
5 GND Signal ground terminal
6 FILTER Terminal for external capacitor that sets bandwidth
7 VIOUT Analog output signal
8 VCC Device power supply terminal
Functional Block Diagram
Pin-out Diagram