STR-G6651
Data Sheet
OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
The STR-G6651 is specifically designed to sat...
STR-G6651
Data Sheet
OFF-LINE QUASI-RESONANT FLYBACK SWITCHING
REGULATOR
The STR-G6651 is specifically designed to satisfy the requirements for increased integration and reliability in off-line quasi-resonant flyback converters. This device incorporates the primary control and drive circuit with a discrete avalanche-rated power MOSFET.
FDBK
OSC.
LATCH
www.DataSheet4U.com
UVLO OVP TSD
GROUND
OVERCURRENT & FEEDBACK
SOURCE
SUPPLY
DRAIN
Cycle-by-cycle current limiting, under-voltage lockout with hysteresis, over-voltage protection, and thermal shutdown protects the power supply during the normal overload and fault conditions. Over-voltage protection and thermal shutdown are latched after a short delay. The latch may be reset by cycling the input supply. Low-current startup and a low-power standby mode selected from the secondary circuit completes a comprehensive suite of features. The device is provided in a five-pin over-molded TO-220 style package, affording dielectric isolation without compromising thermal characteristics. Two lead forms are available (with and without the suffix ‘-LF’) to accommodate printed wiring board layout or mechanical constraints. Proven in substantial volumes, the STR-G6651 is a robust low-risk solution for off-line power supplies particularly where management of EMI at the source is a significant element of the system design.
28102.9A
2
1
3
4
VIN
OCP
Dwg. PK-011
ABSOLUTE MAXIMUM RATINGS at TA = +25°C
Control Supply Voltage, VIN . ...