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BD7903FS

Description
5CH Power Driver for CD-ROM, DVD-ROM
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size199KB,16 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Environmental Compliance
Download Datasheet Parametric View All

BD7903FS Overview

5CH Power Driver for CD-ROM, DVD-ROM

BD7903FS Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerROHM Semiconductor
Parts packaging codeSSOP
package instructionSSOP-54
Contacts54
Reach Compliance Codecompli
Drive typeOPTICAL
Interface integrated circuit typeCD MOTOR DRIVER
JESD-30 codeR-PDSO-G54
JESD-609 codee3/e2
length22 mm
Number of channels1
Number of functions1
Number of terminals54
Maximum operating temperature85 °C
Minimum operating temperature-35 °C
Package body materialPLASTIC/EPOXY
encapsulated codeHSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, HEAT SINK/SLUG, SHRINK PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height2.4 mm
Maximum supply voltage6 V
Minimum supply voltage4.3 V
Nominal supply voltage5 V
Supply voltage1-Nom12 V
surface mountYES
Temperature levelOTHER
Terminal surfaceTIN/TIN COPPER
Terminal formGULL WING
Terminal pitch0.8 mm
Terminal locationDUAL
Maximum time at peak reflow temperature10
width11.4 mm
BD7903FS
Optical disc ICs
5CH Power Driver for
CD-ROM, DVD-ROM
BD7903FS
BD7903FS is a 5-channel driver IC that integrates all drivers necessary for CD-ROM, and DVD-ROM systems into a
single chip. Low noise, and low vibration can be achieved by applying the 180° PWM driving system for spindle motor
drivers. Current lag phase occurred by the load of the inductance can be reduced by using the current feedback linear
BTL system to driver the actuator.
!
Applications
CD-ROM, DVD-ROM
!
Features
1) 4channel BTL driver and 3phase motor driver.
- ALL of the motor and actuator for CD-ROM, DVD-ROM etc.
2) These mode is able to be selected by the two control terminals.
- ON/OFF of loading, and other 4channels, brake mode of spindle driver and standby mode.
3) Built-in triangular-wave generator.
4) Package SSOP-A54 has large power dissipation.
5) Built in thermal-shut-down circuit.
Spindle driver
Efficient drive by current feedback PWM drive.
Built in current limit, hall bias, short brake, FG 3-phase mixed signal output and reverse protection circuit.
Low ON-Resistor. (RON=0.85Ω)
Sled motor driver, Loading driver
Voltage feedback Linear BTL drive system.
Actuator driver
Current feedback Linear BTL drive system.
Current phase lag influenced load inductance is little, because this type is current feedback.
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