BA6870S - 3-phase motor driver

Product Overview

Rohm

Datasheet Details

Part number	BA6870S
Manufacturer	ROHM
File Size	135.04 KB
Description	3-phase motor driver
Datasheet	BA6870S Datasheet
Additional preview pages of the BA6870S datasheet.

Product details

Description

BA6870S FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC1 = 5V, VM = VCC2 = 12V) FCircuit operation (1) Pseudo-linear output and torque ripple cancellation The IC generates a trapezoidal (pseudo-linear) output current, whose waveform phase is 30 degrees ahead of that of the Hall input voltage (Fig.1).The trapezoidal waveform of output current would create intermittence in the magnetic field generated by the 3-phase motor, and would result in an irregular rotation of the

Features

1) 3-phase, full-wave, pseudo-linear driver system. 2) High performance torque ripple cancellation circuit. 3) Reversal braking by detecting the motor direction. 4) Saturation prevention circuit for high- and low-side output transistors. FAbsolute maximum ratings (Ta = 25_C) 5) Motor power supply series regulators. 6) Built-in circuit for output-to-GND short-circuit detection. FRecommended operating conditions (Ta = 25_C) 666 Motor driver ICs FBlock diagram BA6870S 667 Motor driver ICs FP.

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Published: Apr 1, 2005 |