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ACS770KCB-150U-PFF-T

ACS770KCB-150U-PFF-T

Allegro MicroSystems
Current Sensor 150A 1 Channel Hall Effect, Open Loop Unidirectional 5-CB Formed Leads, PFF
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Overview

The ACS770KCB-150U-PFF-T is a high-accuracy, unidirectional Hall-effect current sensor designed for high-side or low-side current sensing in heavy-load applications. It provides a ratiometric analog voltage output proportional to a DC current up to 150A, featuring 4.6us response times and 120kHz bandwidth. The device is AEC-Q100 automotive qualified and provides galvanic isolation through its integrated, low-resistance copper conduction path.

Why Choose This Part

This sensor offers a low-resistance current path (typically 100 micro-ohms) to minimize power loss and heat generation. It achieves high precision with a +/-0.6 percent accuracy and +/-1 percent linearity over temperature, and the factory-trimmed Hall IC ensures consistent sensitivity of 26.7mV/A.

Applications

EV Traction Inverters
High-current DC monitoring for battery management and electric vehicle motor drive systems.
Industrial Motor Control
Real-time load detection and torque control in high-power industrial machinery.
DC-to-DC Converters
Current feedback for high-efficiency power conversion in telecommunications and renewable energy systems.
Overcurrent Protection
Fast-acting fault detection to protect power semiconductors and distribution systems.

Key Specifications

Output Ratiometric, Voltage
Accuracy +/-0.6%
Frequency DC ~ 120kHz
Linearity +/-1%
Sensitivity 26.7mV/A
Sensor Type Hall Effect, Open Loop
Polarization Unidirectional
For Measuring DC
Mounting Type Through Hole
Response Time 4.6us
Package / Case 5-CB Formed Leads, PFF
Voltage - Supply 5V
Current - Sensing 150A
Number of Channels 1
Operating Temperature -40degC ~ 125degC
Current - Supply (Max) 15mA
Supplier Device Package 5-CB Module

Getting Started

To evaluate this sensor, provide a stable 5V DC supply and connect the primary current path to the high-current terminals. Monitor the VIOUT pin with a high-impedance ADC or oscilloscope; since the output is ratiometric, ensure your ADC reference is tied to the same VCC to maintain accuracy.

Also Consider

ACS770LCB-100U-PFF-T Allegro MicroSystems - Lower current range (100A) for applications requiring higher sensitivity per Ampere.
ACS770KCB-150B-PFF-T Allegro MicroSystems - The bidirectional version of this sensor for applications requiring measurement of both charge and discharge currents.