KA3016D 데이터 시트보기 (PDF) - Fairchild Semiconductor
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KA3016D Datasheet PDF : 18 Pages
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KA3016D
2. SHORT BRAKE
VCC
ON
OFF
18
50kΩ
30kΩ
CD-ROM PRODUCTS
OFF
2
ON
4
7
MOTOR
Pin # 18
High
Low
Short brake
On
Off
When the pick-up part moves from the inner to the outer spindle of the CD, the brake function of the reverse
voltage is commonly employed to decrease the rotating velocity of the spindle motor.
However, if the spindle motor rotates rapidly, the brake function of the reverse voltage may produce much heat at
the Drive IC.
To remove this shortcoming and to enhance the braking efficiency, the short brake function is added to KA3016D.
When the short brake function is active, all upper power TRs turn off and all lower power TRs turn on, so as to
make the rotating velocity of the Motor slow down. But FG and DIR functions continue to operate normally.
3. POWER SAVE
VCC
Start
Stop
23
50kΩ
30kΩ
OFF
2
ON
4
7
MOTOR
Pin # 23
High
Low
Start/Stop
Operate
Stop
When power save function active, all power TRs turn off but FG and DIR functions continue to operate normally.
8
MIC-99D001
January 1999
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