전자부품 데이터시트 검색엔진 |
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LC5546LD 데이터시트(PDF) 3 Page - Sanken electric |
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LC5546LD 데이터시트(HTML) 3 Page - Sanken electric |
3 / 11 page Electrical Characteristics of Control Part (MIC) TA = 25°C, VCC = 20 V, unless otherwise specified Characteristic Symbol Test Conditions Pins Min. Typ. Max. Unit Power Supply Startup Operation Operation Start Voltage VCC(ON) 2 – 1 13.8 15.1 17.3 V Operation Stop Voltage* VCC(OFF) 2 – 1 8.4 9.4 10.7 V Circuit Current in Operation ICC(ON) 2 – 1 – – 4.7 mA Startup Circuit Operation Voltage VSTARTUP 8 – 1 18 21 24 V Startup Current ICC(STARTUP) VCC = 13 V 2 – 1 −8.5 −4.0 −1.5 mA Startup Current Threshold Biasing Voltage* VCC(BIAS) 2 – 1 9.5 11.0 12.5 V Normal Operation PWM Operation Frequency fOSC LC5545LD 8 – 1 60 72 84 kHz LC5546LD 50 60 70 kHz LC5548LD 60 72 84 kHz Maximum On-Time tON(MAX) LC5545LD 8 – 1 8.0 9.3 11.2 μs LC5546LD 9.0 11.2 13.4 μs LC5548LD 8.0 9.3 11.2 μs FB Pin Control Minimum Voltage VFB(MIN) 4 – 1 0.50 0.85 1.20 V Maximum Feedback Current IFB(MAX) 4 – 1 –40 –25 –10 μA Leading Edge Blanking Time tON(LEB) 3 – 1 − 600 − ns Quasi-Resonant Operation Threshold Voltage-1 VBD(TH1) 3 – 1 0.14 0.24 0.34 V Quasi-Resonant Operation Threshold Voltage-2 VBD(TH2) 3 – 1 0.11 0.16 0.21 V Protected Operation OCP Pin Overcurrent Protection (OCP) Threshold Voltage VOCP 3 – 1 −0.66 −0.60 −0.54 V OCP Pin Source Current IOCP 3 – 1 −120 −40 −10 μA OCP Pin Overvoltage Protection (OVP) Operation Voltage VBD(OVP) 3 – 1 2.2 2.6 3.0 V Overload Protection (OLP) Threshold Voltage VFB(OLP) 4 – 1 4.1 4.5 4.9 V OVP Pin OVP Threshold Voltage VOVP(OVP) 6 – 1 1.6 2.0 2.4 V VCC Pin OVP Threshold Voltage VCC(OVP) 2 – 1 28.5 31.5 34.0 V Thermal Shutdown Activating Temperature TJ(TSD) – 135 – – °C *VCC(BIAS) > VCC(OFF) always. 3 SANKEN ELECTRIC CO., LTD. LC5540LD-DS Single-Stage Power Factor Corrected Off-Line Switching Regulators LC5540LD Series |
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