Switch-Mode Powe Supply Ic Strg5653/G8656 - Toshiba 21E88 Service Manual

8. SWITCH-MODE POWER SUPPLY IC STRG5653/G8656
1). General Description
The STRG5653/G8656 are part of the STRG5600/G8600 series thick-film ICs for switch-mode
power supply incorporating power MOSFET with a high-precise error amplifier. The ICs feature
fewer external components, small-size and standard power supply.
The series STR-G8600 use Chip on Chip technology with the same operation principle as
STR-G5600. Pin configuration, function and threshold of STR-G8600 are compatible with those of
STR-G5600.
2) Block Diagram
3).Function of Terminal
Terminal Symbols
No.
1 D
2 S
3 GND
4 VIN
5 O.C.P/F.B
SERVICE MANUAL
Fig.27
Table 14 Function of Terminal
Description
Drain Terminal
Source Terminal
Ground Terminal
Power supply Terminal
Overcurrent/Feedback Terminal
54
Functions
MOS FET drain
MOS FET source
Ground
Input of power supply for control
signals
Input of overcurrent detection
signal and constant voltage
signals