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2009.05 - Rev.A

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System Power Supply for TV Series

FET Controller Type

3ch System Power Supply ICs

BD8629FS

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Description

BD8629FS has realized the high performance and reliability required as a power supply for thin-screen TV.

With built-in FET 1ch current mode control, the DC/DC Converter series has the advantage of high-speed load response and

wide phase margin.

Due to the high-speed load response, it is most suitable for TV-purpose processors with increasingly high performance, and

due to the wide phase margin it leaves a good margin for board pattern & constant setting and so facilitates its application

design.

As a high-reliability design, it has various built-in protection circuits (overcurrent protection, output voltage abnormal

protection, thermal protection, and off-latch function at the time of abnormality etc.), therefore as an advantage it does not

easily damage in every possible abnormal condition such as all-pin short circuit test etc. and hence most suitable for

thin-screen TV which requires the high reliability.

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Features

1)

High efficiency in all load area

2) 2.0A output current

3) Low RDS(ON) internal switches (PchMOS:170mΩ, NchMOS:130mΩ)

4) ±1% reference voltage accuracy

5) Programmable frequency : 250kHz-1MHz

6) Terminal RT OPEN/SHORT detecting function

7) Over current protection function

8) Output over voltage/low voltage protection function (over : FB > VREF +60mV , low : FB < VREF -60mV)

9) Timer off latch function in abnormal circumstances

10) Thermal shutdown function

11) Under voltage protection

12) Soft start/start delay circuit

13) Soft start time out function

14) SSOP-A16 package

No.09034EAT07