Customer-Programmable Linear Hall-Effect Sensor Optimized for Use in Current Sensing Applications

ACS73369

Allegro 3-Pin SIP UA Package

Description

Top Features

Packaging

The ACS73369 is a customer-programmable, high accuracy linear Hall-effect-based current sensor IC. It is packaged in a thin 3-pin SIP to allow for easy integration with a magnetic core to create a highly accurate current sensing module. The programmable nature of the ACS73369 enables it to account for manufacturing tolerances in the final current sensing module assembly.

This temperature-stable device is available in a through-hole single in-line package (TO-92 style). The accuracy of the device is enhanced via programmability on the output pin for endof-line optimization without the added complexity and cost of a fully programmable device. The device features One-Time-Programming (OTP)—using nonvolatile memory—to optimize device sensitivity and the quiescent output voltage (QVO) (output with no magnetic field) for a given application or circuit. The ACS73369 also allows for optimized performance over temperature through programming the temperature coefficient for both Sensitivity and QVO at Allegro end-of-line test.

These ratiometric Hall-effect sensor ICs provide a voltage output that is proportional to the applied magnetic field. The quiescent voltage output is user-adjustable around 50% of the supply voltage, and the output sensitivity is programmable within a range of 9 to 13.5 mV/G for the ACS73369EUAA‑010B5‑C.

The features of this linear device makes it ideal for use in industrial applications requiring high accuracy and are guaranteed over a wide temperature range, –40°C to 85°C.

  • Customer-programmable offset and sensitivity
  • Sensitivity and QVO temperature coefficients programmed at Allegro for improved accuracy
  • Customer-programmable polarity
  • 3-pin SIP package for easy integration with magnetic concentrator
  • Low noise, moderate bandwidth analog output
  • High-speed chopping scheme minimizes QVO drift over temperature
  • Temperature-stable quiescent voltage output and sensitivity
  • Precise recoverability after temperature cycling
  • Undervoltage lockout (UVLO)
  • Wide ambient temperature range: –40°C to 85°C
  • Immune to mechanical stress

The ACS73369 is packaged in a thin 3-pin SIP, (suffix UA), to allow for easy integration with a magnetic core to create a highly accurate current sensing module.

UA Package Documentation

Part Number Specifications and Availability

Documentation and Resources

Documentation

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Core Design for Field DC Current Sensors
SPICE Model
ACS LTspice Library