Data Sheet 28102.9*
STR-G6653
GROUND 3
SUPPLY 4
OSC.
FDBK LATCH
VIN OCP
UVLO OVP TSD
5
OFF-LINE QUASI-RESONANT ...
Data Sheet 28102.9*
STR-G6653
GROUND 3
SUPPLY 4
OSC.
FDBK LATCH
VIN OCP
UVLO OVP TSD
5
OFF-LINE QUASI-RESONANT FLYBACK SWITCHING REGULATOR
The STR-G6653 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.
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.
Proven in substantial volumes, the STR-G6653 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.
OVERCURRENT & FEEDBACK
SOURCE 2
DRAIN 1
Dwg. PK-011
ABSOLUTE MAXIMUM RATINGS at TA = +25°C
Control Supply
Voltage, VIN . . . . . . . 35 V Drain-Source
Voltage, VDS . . . . . . . . 650 V Drain Current, ID
continuous . . . . . . . . . . . . . . . . . . 2.7 A
single-pulse, tw ≤ 1 ms ...