مدار مجتمع (آی سی) آی‌سی مدیریت توان (پی‌ام‌آی‌سی) درایور و کنترلر موتور

Product Attributes

Introduction

SA57A is a fully integrated switching amplifier designed primarily for driving DC brushed motors. Two independent half-bridges, under microcontroller or DSC control, can deliver peak output currents exceeding 15A. Thermal monitoring and short-circuit monitoring features generate fault signals to the microcontroller, enabling appropriate protective action.

In addition, cycle-by-cycle current limiting provides user-programmable hardware protection independent of the microcontroller. Output current is measured using an innovative low-loss technique. SA57A is fabricated using a multi-technology process that enables CMOS logic control and complementary DMOS output power devices on the same IC. The use of P-channel high-side FETs allows 60V operation without bootstrap or charge pump circuits.

The HSOP surface-mount package strikes a balance between excellent thermal performance and the advantages of a low-profile SMT package.

Features

• Low-cost intelligent switch amplifier
• Direct connection to most embedded microcontrollers and digital signal controllers
• Integrated gate drive logic with dead-time generation and shoot-through protection
• Wide supply voltage range (8.5V to 60V)
• Peak output current exceeding 15A per phase
• Independent current sensing per output
• User-programmable cycle-by-cycle current limit protection
• Overcurrent and overtemperature warning signals

Applications

• Bidirectional DC brushed motor
• 2 unidirectional DC brushed motors
• 2 independent solenoid actuators
• Stepper motor