TA8490F 查看數據表（PDF） - Toshiba

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TA8490F

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT MULTI−CHIP

Toshiba 

TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT MULTI−CHIP

TA8490F

TA8490F

3−PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD−ROM DRIVES

This 3−phase, full−wave, brushless DC motor driver IC has been

developed for use in CD−ROM drive spindle motors. The

TA8490F contains in its upper stage a discrete power transistor

which, thanks to its low−saturation characteristic, 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

• Multi−chip structure (3 RN6006 chips built−in)

• 3−phase, full−wave, semi−linear drive

• Current drive / current control

• Built−in current limiter : ILIM = 0.6A (typ.) (at RF = 0.3 Ω)

• Built−in reversing brake / short brake functions

• FG signal output (using hall element output signal)

• Built−in switching regulator controller

• Built−in hall bias

• Built−in thermal shutdown circuit

Weight : 0.63 g (typ.)

1

2003-10-07

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