STR-G8626
PIN FUNCTIONS
STR-G5653
_ G-8626
|
||
PIN
|
SYMBOL
|
FUNCTION
|
1
|
D
|
MOSFET
DRAIN
|
2
|
S
|
MOSFET
SOURCE
|
3
|
GND
|
GROUND
|
4
|
Vin
|
SUPPLY
VOLTAGE INPUT
|
5
|
OCP/FB
|
OVER
CURRENT PROTECTION.
|
STR-F6654
|
||
1
|
OCP/FB
|
OVER
CURRENT PROTECTION
|
2
|
S
|
MOSFET
SOURCE
|
3
4
5
|
D
Vin
GND
|
MOSFET
DRAIN
VOLTAGE
IN
GROUND
|
The Series STR-G 86626/5653/F6654 is specifically designed to satisfy the requirements for increased integration and reliability in off-line quasi-resonant flyback converters. The series incorporates a high-precise error amplifying control and drive circuit with discrete avalanche-rated power MOSFET, featuring fewer external components, small-size and standard power supply. Covering the power range from below 25 watts up to 300 watts for 100/115/230 VAC inputs, and up to 150 watts for 85 to 265 VAC universal input, these devices can be used in a range of applications, from battery chargers and set top boxes, to televisions, monitors, and industrial power supply units. 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. Low-current startup and a low-power standby mode selected from the secondary circuit completes a comprehensive suite of features. The series is provided in a five-pin over molded SIP style package, affording dielectric isolation without compromising thermal characteristics.
FEATURES
- Fly back Operation with Quasi-Resonant Soft Switching for Low Power Dissipation and EMI
- Rugged Avalanche-Rated MOSFET
- Soft drive circuit MOSFET
- Adjustable MOSFET switching speed
- Choice of MOSFET Voltage and Rds(on)
- Full Over-Current Protection (no blanking)
- Under-Voltage Lockout with Hysteresis
- Over-Voltage Protection
- Direct Voltage Feedback
- Low Start-up Current (100 Amax)
- Low-Frequency, Low-Power Standby Operation
- Over molded 5-Pin Package
POWER SUPPLY TROUBLESHOOTING CHARTS
- SMPS HAS NO VOLTAGE OUTPUT
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- SMPS ALWAYS IN STANDBY MODE
OTHER FAULTS
- CHANNEL NUMBER REMAINS UNCHANGED DURING AUTO PROGRAM
- NO COLOR
- ABNORMAL COLOR
- NO RASTER [HORIZONTAL/VERTICAL SCAN PROBLEM]
- HORIZONTAL BRIGHT LINE
- WIDTH PROBLEM
- E/W DISTORTION
- NO SOUND
