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BD7902CFS

Features: ` 3channel BTL driver, 2channel PWM driver and 3phase motor driver. - ALL of the motor and actuator for CD-ROM, DVD-ROM etc. ` These mode is able to be selected by the two control terminals. - ON/OFF of loading, and other 5channels, brake mode select of spindle driver and standby mode....

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SeekIC No. : 004299033 Detail

BD7902CFS: Features: ` 3channel BTL driver, 2channel PWM driver and 3phase motor driver. - ALL of the motor and actuator for CD-ROM, DVD-ROM etc. ` These mode is able to be selected by the two control termina...

BD7902CFS Data Sheet

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Part Number:
BD7902CFS
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` 3channel BTL driver, 2channel PWM driver and 3phase motor driver.
   - ALL of the motor and actuator for CD-ROM, DVD-ROM etc.
`  These mode is able to be selected by the two control terminals.
   - ON/OFF of loading, and other 5channels, brake mode select of spindle driver and standby mode.
`  Built-in triangular-wave generator.
`  Package SSOP-A54 has large power dissipation.
`  Built in thermal-shut-down circuit. 
 
< Spindle driver >
• Efficient drive by current feedback PWM drive.
• Built in current limit, hall bias, short brake, FG output and reverse protection circuit.
• Low ON-Resistor. (RON=0.95) 
 
< Sled motor driver >
• Efficient drive by current feedback PWM drive.
• Built in 2channel for stepping motor. 
 
< Actuator driver, Loading driver >
• Linear BTL drive system.


Application

· CD-ROM, DVD-ROM


Specifications

Parameter
Symbol
Limits
Unit
POWER MOS
power suuply voltage
SPVM1,2,SLRNF1,2
15∗1
V
Preblock/BTL powerblock
power supply voltage
VCC,SLVDD,AVM
15
V
PWM control block
power supply voltage
DVCC
7
V
Power dissipation
Pd
2.6∗2
W
Operating temperature range
Topr
−35~+85
Storage temperature
Tstg
−55~+150

∗1 POWER MOS output terminals (9, 11, 18, 34~37pin) is contained.
∗2 PCB (70mm*70mm*1.6mm glass epoxy) mounting.
    Reduced by 20.8mW for each increase in Ta of 1°C over 25°C.




Description

BD7902CFS is a 6-channel driver IC that integrates all drivers necessary for CD-ROM, and DVD-ROM systems into a
single chip. The built-in 2-channel sled motor driver is used for the stepping motor. Low heat operation can be achieved  by applying the PWM driving system for sled and spindle motor drivers.




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