Dual-channel H-bridge Motor Driver Chip Offers Three Packages with RDS(ON) of Only 800mΩ

PublishTime： 2021-07-10 Article Source：Zhongke Microelectronics

Zhongke Microelectronics's Dual-channel H-bridge Motor Driver Chip AT8833 provides an integrated dual-channel motor drive solution for toys, printers, and other motor integration applications. AT8833 has two H-bridge drivers, which can drive two DC brushed motors, a bipolar stepper motor, solenoids, and other inductive loads.

The power output stage of each H-bridge is composed of N-type power MOSFET, called the H-bridge driver. Each bridge contains a rectifier circuit and a current-limiting circuit.

Internal shutdown function includes overcurrent protection, short circuit protection, under-voltage lockout protection, and overtemperature protection, and provides a fault detection output pin.

AT8833 offers three packages, one is ETSSOP16 package with exposed pad, and the other two are QFN16 package with exposed pad. The sizes are 4*4 and 3*3, which can effectively improve the heat dissipation performance. All are lead-free Products that comply with environmental protection standards.

Features

●Dual-Channel H-bridge Motor Driver

●Drive Two DC Brushed Motors or One Stepper Motor

●Low RDS(ON) resistance, 800mΩ(HS+LS)

●1.2A Drive Output

●Wide Voltage Supply，2.7V-15V

●PWM control interface

●Over-temperature Shutdown Circuit

●Short Circuit Protection

●Undervoltage Lockout Protection

Application

● Battery-Powered Toys

● POS Printers

● Video Security Cameras

● Office Automation Machines

● Gaming Machines

● Robotics

Package

Typical Application Diagram

Selection Guide

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Integrated Circuits