产品概述
The FSQ500L is an Integrated Power Switch Pulse Width Modulator with 130kHz frequency and no bias winding for 2.5W offline fly-back converters. It is specially designed for a replacement of linear power supplies. This device combines current-mode Pulse Width Modulator (PWM) with a sense-FET. The integrated PWM controller features a fixed oscillator, under voltage lockout (UVLO) protection, overload protection (OLP), leading-edge blanking (LEB), an optimized gate turn-ON/OFF driver, thermal shutdown (TSD) protection with hysteresis and temperature-compensated precision-current sources for loop compensation. When compared to a linear power supply, the FSQ500L device reduces total size and weight, while increasing efficiency, productivity and system reliability. This device provides a basic platform for fly-back converters.
- Internal start-up switch
- Soft-start time tuned by external capacitor
- Pulse-by-pulse current limit
- Auto-restart mode
- No need for auxiliary bias winding
- 130kHz Precision fixed operating frequency
应用
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产品信息
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- 10V
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- 280mA
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- 25ohm
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- SOT-223
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- 4引脚
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- 是
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- -
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- 1输出
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- -40°C
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- 85°C
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- -
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- -
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- MSL 1 -无限制