FairchildFSL206MR5W辅助电源解决方案
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Fairchild 公司的FSL206MR集成了SMPS).内部的SenFET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 Pul-Width Modulator (PWM) and SenFET 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 SenFET 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 attenu
ator, 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 SenFET: 650V
绿豆羹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蜀拼音
毛泽东讲话Line Under-Voltage Protection (LUVP)
Pul-by-Pul Current Limiting
Low Under-Voltage Lockout (UVLO)
Ultra-Low Operating Current: 300A
经济调查
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
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图1.FSL206MR方框图
图2.FSL206MR典型应用电路图 FSL206MR 5W评估板
如何养发财树5W电源主要指标:
图3.FSL206MR 5W评估板外形图
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利差图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)
