A89503: 5.5V - 80V ASIL Half-Bridge MOSFET Gate Drive for Series Loads

Description

The A89503 is an N-channel power MOSFET driver capable of controlling MOSFETs connected in a half-bridge arrangement and is specifically designed for automotive applications with high-power inductive loads, such as brush DC motors, BLDC motors, VR/SR motors, solenoids, and actuators.

The A89503 features an additional low side Drain connection to allow the load to be driven in series between the Low and High Side outputs.  Additionally, a unique charge pump regulator provides full gate drive over the full supply voltage range from 5.5 to 80 V for most applications. Each MOSFET can be independently controlled by logic-level inputs or through the SPI-compatible serial interface. Fully independent control allows both external FETs to be turned on at the same time.  Integrated diagnostics indicate multiple internal faults, system faults, and power bridge faults, and can be configured to protect the power MOSFETs under most short circuit conditions.

The A89503 is supplied in a 24-lead eTSSOP (suffix LP).

Top Features

  • 5.5 to 80 V supply voltage operating range
  • AEC-Q100 Half Bridge MOSFET Driver
  • Independent high-side and low-side gate drives
  • SPI-compatible serial interface with programable diagnostics
  • Current sense amplifier

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check Stock
APEK89503KLP-03-T DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Check
Distributor Stock
APEK89503KLP-05-T DEMO BOARD -20°C to 85°C No -- Contact your
local sales rep
Check
Distributor Stock
A89503KLPTR-3 24-lead TSSOP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock
A89503KLPTR-5 24-lead TSSOP -40°C to 150°C Yes View Data Contact your
local sales rep
Check
Distributor Stock

Allegro 的产品不允许在任何由于 Allegro 产品的合理故障造成人身伤害的装置或系统中使用,包括但不限于生命支持装置或系统。

Package

24 Lead eTSSOP (suffix LP)

LP Package Documentation

Design Support Tools

Allegro Customer Portal: Gain access to Allegro product software and design tools.

A89503 Demo Board User Manual

Application Notes

Driving Inductive Loads