Fairchild FSL206MR 5W辅助电源解决方案
发布时间：2012-7-19 13:08
发布者：1770309616
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Fairchild 公司的FSL206MR集成了PWM和SenseFET,特别适用外接元件最少的高性能离线开关电源(SMPS).内部的SenseFET耐压650V,固定工作频率67kHz,265VAC无偏压绕组的无负载功耗小于150mW,具有多种保护,主要用在STB,DVD和DVCD播放器的开关电源,辅助电源.本文介绍了FSL206MR主要特性,方框图,典型应用电路图以及FSL206MR 5W评估板主要指标,电路图,材料清单和PCB布局图. The FSL206MR integrated Pulse-Width Modulator (PWM) and SenseFET is specifically designed for high performance offline Switched-Mode Power Supplies (SMPS) with minimal external components. This device integrates high-voltage power regulators that combine an avalanche-rugged SenseFET with a Current-Mode PWM control block. The integrated PWM controller includes: 7.8V regulator for no bias winding, Under-Voltage Lockout (UVLO) protection, Leading-Edge Blanking (LEB), an optimized gate turn-on/turn-off driver, EMI attenuator, Thermal Shutdown (TSD) protection, temperature-compensated precision current sources for loop compensation, and fault-protection circuitry such as; Overload Protection (OLP), Over-Voltage Protection (OVP), Abnormal Over-Current Protection (AOCP), and Line Under-Voltage Protection (LUVP). During startup, the FSL206MR offers good soft-start performance. The internal high-voltage startup switch and the Burst-Mode operation with very low operating current reduce the power loss in Standby Mode. As a result, it is possible to reach power loss of 150mW with no-bias winding and 25mW (for FSL206MR) or 30mW (for FSL206MRBN) with bias winding at no-load condition when the input voltage is 265VAC. FSL206MR主要特性: Internal Avalanche-Rugged SenseFET: 650V Precision Fixed Operating Frequency: 67kHz No-Load <150mW at 265VAC without Bias Winding;<25mW with Bias Winding for FSL206MR, <30mW with Bias Winding for FSL206MRBN No Need for Auxiliary Bias Winding Frequency Modulation for Attenuating EMI Line Under-Voltage Protection (LUVP) Pulse-by-Pulse Current Limiting Low Under-Voltage Lockout (UVLO) Ultra-Low Operating Current: 300A Built-In Soft-Start and Startup Circuit Various Protections: Overload Protection (OLP),Over-Voltage Protection (OVP), Thermal Shutdown (TSD), Abnormal Over-Current Protection (AOCP) Auto-Restart Mode for All Protections FSL206MR应用: SMPS for STB, DVD, and DVCD Player SMPS for Auxiliary Power 
图1.FSL206MR方框图 
图2.FSL206MR典型应用电路图 FSL206MR 5W评估板 5W电源主要指标: 
图3.FSL206MR 5W评估板外形图 
图4.FSL206MR 5W评估板电路图 FSL206MR 5W评估板材料清单: 
图5.FSL206MR 5W评估板PCB布局图(顶层) 
图6.FSL206MR 5W评估板PCB布局图(底层) 详情请见: 
FSL206MR.pdf
(884.51 KB)
和
FEBFSL206MRN_H428v1e.pdf
(2.39 MB)
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