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TA8493F Datasheet

  • TA8493F

  • 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD-ROM DR...

  • 25頁(yè)

  • TOSHIBA

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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.
Features
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Multi-chip structure (3 脳 2SJ465 chips built-in)
Direct PWM control system
Drive system: 120擄drive system (TA8493F/BF)
: 180擄drive system (TA8493AF)
Built-in current limiter: I
LIM
= 0.7 A (typ.) (at R
F
= 0.33
鈩?
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

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