SA1469XH Datasheet, PDF (6/11 Pages) Silan Microelectronics Joint-stock – 4-CH BTL DRIVER FOR CD PLAYER WITH 5.0V OUTPUT VOLTAGE

SA1469XH
5) The output stage is the BTL driver and the motor is rotating in forward direction by operating TR Q1 and TR
Q4. on the other hand, if TR Q2 and TR Q3 is operating, the motor is rotating in reverse direction.
6) When the input voltage through the pin # 3 is below the VREF, then the direction of the motor in forward
direction.
7) When the input voltage through the pin # 3 is above the VREF, then the direction of the motor in reverse
direction.
8) If it is desired to change the gain, then the pin # 4 or # 24 can be used.
5. RADIATION FIN IS CONNECTING TO THE INTERNAL GND OF THE PACKAGE.
Connect the fin to the external GND.
6. REGULATOR
This is a typical series regulator that generates a reference voltage internally. A PNP low saturation type tran-
sistor must be connected.
VREF
REG
REO
Attached
PNP
VOUT
Oscillation prevention
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.4 2008.07.23
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