Dual-channel H-bridge Motor Driver Chip AT8813, 2.5A Drive Output

时间： 2021-07-06 来源：Zhongke Microelectronics

技术问答

Zhongke Microelectronics' Dual-channel H-bridge Motor Driver Chip AT8813 provides an integrated motor driver solution for printers and other electromechanical integration applications. AT8813 has two H-bridge drivers with a maximum output of 32V±2.5A. It can drive two DC brushed motors, a bipolar stepper motor, solenoids, and other inductive loads. The bipolar stepping motor can run in full step, 2-subdivision, 4-subdivision, or realize high subdivision by software.

The power output module of each H-bridge of AT8813 is composed of N-type power MOSFET, called the H-bridge driver. Each bridge contains a rectifier circuit and a current-limiting circuit. The device adopts an industry-standard parallel digital control interface, and the decay mode is programmable.

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

AT88123 provides an ETSSOP28 package with an exposed pad, which can effectively improve the heat dissipation performance, and is a lead-free product that meets environmental protection requirements.

Features

●Dual-Channel H-bridge Motor Driver

●Drive Two DC Brushed Motors or One Stepper Motor

●Low RDS(ON) resistance，470mΩ (HS+LS)

●2.5A Drive Output

●Wide Voltage Supply，8V-32V

●2 bits Current Control, Providing 4 Current Steps

●Industry Standard Parallel Digital Control Interface

●PWM Winding Current Regulation and Limitation

●Internal 3.3V Reference Voltage Output

●Over-temperature Shutdown Circuit

●Short Circuit Protection

●Undervoltage Lockout Protection

Application

●POS Printer

●Stage Lighting

●Office Automation Equipment

●Game Console

●Robot

Package

Typical Application Diagram

Selection Guide

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AT8833CR PcbLib & SchLib & IntLib

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