MC33886 40v. 5Amp. Motor Driver

Introduction

The 33886 is a monolithic H-Bridge ideal for fractional horsepower DC-motor and bi-directional thrust solenoid control. The IC incorporates internal control logic, charge pump, gate drive, and low RDS(ON) MOSFET output circuitry. The 33886 is able to control continuous inductive DC load currents up to 5.0 A. Output loads can be pulse width modulated (PWM-ed) at frequencies up to 10 kHz. A Fault Status output reports under voltage, short circuit, and over temperature conditions. Two independent inputs control the two half-bridge totem-pole outputs. Two disable inputs force the H-Bridge outputs to tri-state.

Specifications

• 5.0 V to 40 V Continuous Operation
• PWM Frequencies up to 10 kHz
• TTL / CMOS Compatible Inputs
• Active Current Limiting via Internal Constant OFF-Time PWM (with Temperature-Dependent Threshold Reduction)
• Output Short Circuit Protection
• Under voltage Shutdown
• Fault Status Reporting
• 120 mÙ RDS(ON) H-Bridge MOSFETs

Applications

• High power DC motor drives
• Position and velocity servomechanisms
• Factory automation robots
• Numerically controlled machinery
• Computer printers and plotters

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