描述 Description

The HIP4011 motor driver is intended for three phase Brushless motor control at continuous output currents up to 3A. It accepts inputs from buffered Hall effect sensors and drives three motor windings, regulating the current through an external current sensing resistor, according to an analog control input. Output “freewheeling” diodes are built in and output dv/dt is limited to decrease the generated EMI. Thermal and current limiting are used to protect the device from locked rotor conditions. A brake control input forces all outputs to ground simultaneously to provide dynamic braking, and an internal voltage sensor does the same when the supply drops below a predetermined switch point. Power down braking energy is stored in an external capacitor.

特性 Features

? 3A DC, 5A Peak Output Current

? 16V Max. Rated Supply Voltage

? Built-in “Free-Wheeling” Diodes

? Output dv/dt Limited to Reduce EMI

? External Dynamic Brake Control Switch With Undervoltage Sense

? Thermal and Current Limiting Protects Against Locked Rotor Conditions

? Provides Analog Current Sense and Reference Inputs

? Decode Logic with Illegal Code Rejection

Applications

? Drive Spindle Motor Controller

? 3 Phase Brushless DC Motor Controller

? Brushless DC Motor Driver for 12V Battery Powered Appliances

? Phased Driver for 12V DC Applications

? Logic Controlled Driver for Solenoids, Relays and Lamps