BH6510FS [ROHM]
4-channel PWM driver for CD and MD players; 4通道PWM驱动程序CD和MD播放器
| 型号： | BH6510FS |
| 厂家： | 
ROHM |
| 描述： | 4-channel PWM driver for CD and MD players |
| 文件： | 总8页 (文件大小：138K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Optical disc ICs
4-channel PWM driver for CD and MD
players
BH6510FS
The BH6510FS is a 4-channel PWM driver for CD and MD player motors and actuators. The power MOSFET in the
output stage assures low power consumption for applications.
FApplications
CD and MD players
FFeatures
1) Internal 4-channel power MOS H-bridge.
2) Adaptable for PWM input.
3) Low ON resistance.
4) Low power consumption.
5) 32-pin SSOP-A package.
Compact package.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions
253
Optical disc ICs
BH6510FS
FBlock diagram
FPin descriptions
254
Optical disc ICs
BH6510FS
FPin equivalent circuit
FElectrical characteristics (unless otherwise noted, Ta = 25_C, VM = 2.5V, VDD = 3V, VG = 10V, fIN = 176kHz,
RL = 8Ω * 47µH)
255
Optical disc ICs
BH6510FS
FMeasurement circuit
256
Optical disc ICs
BH6510FS
FCircuit operation
fPWM driver
The output stage is an H-bridge driver with four N-type
FET circuits. Output PWM duty is changed according to
input PWM duty. This pulse drives the load (direct PWM).
Driver truth table
257
Optical disc ICs
BH6510FS
FApplication example
258
Optical disc ICs
BH6510FS
FOperation notes
This IC uses three power supplies : VDD, VG and VM. Be-
low are the blocks to which each power supply connects.
VDD : control block (INTERFACE)
VG : pre drive block
As starting VG and VM when VDD is open could cause the
topandbottomoutputMOStoturnonsimultaneouslybe-
fore the previous stage logic stabilizes, be sure to design
so that VDD starts up first.
VM : H-bridge block
FElectrical characteristic curves
259
Optical disc ICs
BH6510FS
FExternal dimensions (Units: mm)
260
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