TA8493F Datasheet (Toshiba Semiconductor) - 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER

TA8493F, 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER

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

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

Relation between control input and PWM ON duty is shown below, PWM ON duty is 100% when

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

TA8493F 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 bra