Universal-Input 13W 100kHz Flyback Switching Regulators
The STR-A6259H is a 100 kHz PWM topology (with ±5% frequency jittering for minimum EMI) regulator specifically designed to satisfy the requirements for increased integration and reliability in flyback converters. It incorporates a primary control and drive circuit with an avalanche-rated power MOSFET. Covering the power range from below 17 watts for a 230 VAC input, or to 13 watts for a universal (85 to 264 VAC) input, this device can be used in a wide range of applications, from DVD players and VCR player/recorders to ac adapters for cellular phones and digital cameras. An auto-burst standby function reduces power consumption at light load, while multiple protections, including the avalanche-energy guaranteed MOSFET, provide high reliability of system design. Cycle-by-cycle current limiting, undervoltage lockout with hysteresis, overvoltage protection, and thermal shutdown protect the power supply during the normal overload and fault conditions. Overvoltage protection and thermal shutdown are latched after a short delay. The latch may be reset by cycling the input supply. Low start-up current and a low-power standby mode selected from the secondary circuit completes a comprehensive suite of features. It is provided in an 8-pin mini-DIP plastic package with pin 6 removed. The leadframe plating is pure Sb, and the package complies with RoHS.
FEATURES AND BENEFITS
*100 kHz PWM with ±5% frequency jittering for EMI noise filtering cost reduction
*Rugged 650 V avalanche-rated MOSFET:
• Simplified surge absorption
• No VDSS derating required
*Low RDS(on) : 6 Ω maximum
*Auto-burst mode for stand-by operation or light loads; less transformer audible noise
*Built-in leading edge blanking Soft start and low start-up current; start-up circuit disabled in operation Auto-burst stand-by (intermittent operation) input power <0.1 W at no load Built-in constant-voltage/constant current (CV/CC)
*Multiple protections:
• Pulse-by-pulse overcurrent protection (OCP)
• Overload protection (OLP) with auto restart
• Latching overvoltage protection (OVP)
• Undervoltage lockout (UVLO) with hysteresis
• Latching thermal shutdown (TSD)
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Hubungi :
Magenta Electronics
Alamat : Jln. Ottista Gg. Mandor Ciputat Tangerang Selatan
Tlp : 021-74702987
Hp : 082177773323-087884527144
Pin BB : 54A7F197
Email : odang@magentaelectronics.com
Website : www.magentaelectronics.com
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