PMP9074, 85VAC-265VAC Input,12V/3W Low Cost Flyback with BJT
Referenzdesign unter Verwendung des Teils UCC28720D von Texas Instruments
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Beschreibung
- PMP9074, 85VAC-265VAC Input,12V/3W Low Cost Flyback with BJT. This 12V/3W reference design is optimized for very low cost and yet maintains good efficiency. Two key factors for minimizing cost are a BJT is used for the main power switch, and primary-side regulation eliminates the need for an optocoupler. The UCC28720 quasi-resonant flyback controller is able to implement both of these features. With quasi-resonant switching, efficiency at full load is over 80%, even with a BJT switch. Light-load losses are kept below 100mW due to burst mode operation
Haupteigenschaften
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Conversion TypeAC to DC
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Input Voltage85 to 265 (AC) V
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Output Voltage12 V
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Output Current0.4 A
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Output Power4.8 W
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Efficiency80 %
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TopologyFlyback- Quasi Resonant
Empfohlene Bauteile (3)
| Teilenummer | Hersteller | Typ | Beschreibung | |||
|---|---|---|---|---|---|---|
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ZSR330GTA | Diodes Incorporated | Linear Regulators | Standard Regulator Pos 3.3V 0.2A 4-Pin(3+Tab) SOT-223 T/R | In den Warenkorb | |
|
UCC28720D | Texas Instruments | AC to DC Switching Converters | AC to DC Switching Converter Flyback 8.15V 87kHz Tube 7-Pin SOIC | In den Warenkorb | |
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UCC28720DR | Texas Instruments | AC to DC Switching Converters | AC to DC Switching Converter Flyback 8.15V 87kHz T/R 7-Pin SOIC | In den Warenkorb | |