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TA8493BF - 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER

This page provides the datasheet information for the TA8493BF, a member of the TA8493F 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER family.

Description

This IC is a 3-phase, full wave brushless DC motor driver of the direct PWM control type.

The common mode input voltage ranges for both VC and Vref are 0.5 to 4.0 V.

Features

  • Multi-chip structure (3 × 2SJ465 chips built-in) Direct PWM control system Drive system: 120°drive system (TA8493F/BF) : 180°drive system (TA8493AF) Built-in current limiter: ILIM = 0.7 A (typ. ) (at RF = 0.33 Ω) Built-in reversing brake/short brake functions FG signal output (using hall element output signal) Built-in hall bias Built-in thermal shutdown circuit Package: MFP-30 Weight: 0.63 g (typ. ) 1 2002-01-31 TA8493F/AF/BF Block Diagram.

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Full PDF Text Transcription

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TA8493F/AF/BF Toshiba Bipolar Linear Integrated Circuit Multi-Chip TA8493F, TA8493AF, TA8493BF 3-Phase Full Wave Brushless DC Motor Driver IC for CD-ROM Drives These 3-phase, full-wave, brushless DC motor driver ICs have been developed for use in CD-ROM drive spindle motors. The TA8493F/ AF/ BF contain in its upper stage a discrete power transistor (P-ch-MOS) and uses direct PWM control system, which enables the IC to provide superior thermal efficiency. Furthermore, the multi-chip structure of this device facilitates dispersion of the heat generated inside the package, making it possible to suppress heat concentration.
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