ACS750LCA-075

ACS750LCA-075 Datasheet


ACS750xCA-075

Part Datasheet
ACS750LCA-075 ACS750LCA-075 ACS750LCA-075 (pdf)
Related Parts Information
ACS750SCA-075 ACS750SCA-075 ACS750SCA-075
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ACS750xCA-075

Fully Integrated, Hall Effect-Based Linear Current Sensor IC with High Voltage Isolation and a Low-Resistance Current Conductor

Last Time Buy

These parts are in production but have been determined to be LAST TIME BUY. This classification indicates that the product is obsolete and notice has been given. Sale of this device is currently restricted to existing customer applications. The device should not be purchased for new design applications because of obsolescence in the near future. Samples are no longer available.

Date of status change April 28, 2008 Deadline for receipt of LAST TIME BUY orders October 31,

Recommended Substitutions:

For existing customer transition, and for new customers or new applications, refer to the ACS756.

NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative.

ACS750xCA-75

Fully Integrated, Hall Effect-Based Linear Current Sensor IC with High Voltage Isolation and a Low-Resistance Current Conductor

Monolithic Hall IC for high reliability Single +5 V supply 3 kVRMS isolation voltage between terminals 4/5 and
pins 1/2/3 for up to 1 minute 13 kHz bandwidth Automotive temperature range End-of-line factory-trimmed for gain and offset Ultra-low power loss 130 uΩ internal conductor
resistance Ratiometric output from supply voltage Extremely stable output offset voltage Small package size, with easy mounting capability Output proportional to AC and DC currents

Package 5 pin package leadform PFF

The Allegro ACS75x family of current sensor ICs provides economical and precise solutions for current sensing in industrial, automotive, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, power supplies, and overcurrent fault protection.

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 proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy at the factory.

The output of the device has a positive slope >VCC / 2 when an increasing current flows through the primary copper conduction path from terminal 4 to terminal 5 , which is the path used for current sampling. The internal resistance of this conductive path is typically 130 uΩ, providing low power loss. The thickness of the copper conductor allows survival of the device at up to

Continued on the next
4 IP+
1 VCC

ACS750

GND 2

VIOUT

CBYP µF

CF RF

VOUT

Application The ACS750 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 recommended for noise management, with values that
depend on the application.

ACS750xCA-75

Fully Integrated, Hall Effect-Based Linear Current Sensor IC with High Voltage Isolation and a Low-Resistance Current Conductor

Description continued 5x overcurrent conditions. The terminals of the conductive path are electrically isolated from the signal leads pins 1 through This allows the ACS75x family of sensor ICs to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.

The device is fully calibrated prior to shipment from the factory. The ACS75x family is lead Pb free. All pins are coated with 100% matte tin, and there is no lead inside the package. The heavy gauge leadframe is made of oxygen-free copper.

Selection Guide

TOP °C

Primary Sampled

Current, IP A

Sensitivity Sens Typ.
mV/A

Packing1

ACS750LCA-0752
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Datasheet ID: ACS750LCA-075 516105