Powerint TOP270VG 100W小型反激电源解决方案
Powerint公司的TOPSwitch-JX系列产品集成了725V功率MOSFET,高压开关电流源,多模式PWM控制器,振荡器,热关断电路,故障保护和其它控制电路,适合用于10W-245W的电源.265VAC时无负载的功耗小于100mW,主要用在笔记本电脑适配器,打印机,LCD监视器,STB,PC或LCD TV待机电源,音频放大器.本文介绍了TOPSwitch-JX系列产品亮点,方框图, 19V 65W反激电源电路图和12V 30W反激电源电路图以及12V/24V 100W反激电源评估板主要特性和指标,电路图,变压器电路图与材料清单,PCB布局图.
TOPSwitch-JX cost effectively incorporates a 725 V power MOSFET, high-voltage switched current source, multi-mode PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device.
TOPSwitch-JX系列产品亮点:
EcoSmart – Energy Effi cient
• Ideal for applications from 10 W to 245 W
• Energy efficient over entire load range
• No-load consumption below 100 mW at 265 VAC
• Up to 750 mW standby output power for 1 W input at 230 VAC
High Design Flexibility for Low System Cost
• Multi-mode PWM control maximizes effi ciency at all loads
• 132 kHz operation reduces transformer and power supply size
• 66 kHz option for highest effi ciency requirements
• Accurate programmable current limit
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