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LC554XLF Datasheet(PDF) 2 Page - Sanken electric |
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LC554XLF Datasheet(HTML) 2 Page - Sanken electric |
2 / 13 page Selection Guide Part Number MOSFET VDSS(min) (V) RDS(on) (max) (Ω) PWM Operation Frequency, fOSC(typ) (kHz) On-Time tON(MAX)(typ) (μs) POUT* (W) 230 VAC 85 to 265 VAC LC5546LF 650 1.9 40 17.5 60 40 LC5547LF 1.1 80 55 LC5549LF 800 1.7 60 40 *Based on the thermal rating; the allowable maximum output power can be up to 120% to 140% of this value. However, maximum output power may be limited in such an application with low output voltage or short duty cycle. Absolute Maximum Ratings Unless specifically noted, TA is 25°C Characteristic Symbol Notes Pins Rating Unit Drain Current1 IDPeak LC5546LF Single pulse 1 – 2 9.2 A LC5547LF 13.0 A LC5549LF 10.5 A Single Pulse Avalanche Energy2 EAS LC5546LF ILPeak = 2.9A, VDD = 99 V, L = 20 mH 1 – 2 99 mJ LC5547LF ILPeak = 4.4A, VDD = 99 V, L = 20 mH 233 mJ LC5549LF ILPeak = 2.8A, VDD = 99 V, L = 20 mH 92 mJ Control Part Input Voltage VCC 3 – 2 35 V OCP Pin Voltage VOCP 4 – 2 −2.0 to 5.0 V FB Pin Voltage VFB 5 – 2 −0.3 to 7.0 V OVP Pin Voltage VOVP 7 – 2 −0.3 to 5.0 V Allowable Power Dissipation of MOSFET3 PD1 LC5546LF With infinite heatsink 1 – 2 20.2 W LC5547LF 23.6 W LC5549LF Without heatsink 1.8 W Internal Frame Temperature in Operation TF ―−20 to 115 °C Operating Ambient Temperature TOP ―−55 to 115 °C Storage Temperature Tstg ―−55 to 125 °C Channel Temperature Tch ― 150 °C 1 Refer to MOSFET Safe Operating Area Curve. 2 Refer to MOSFET Avalanche Energy Derating Coefficient Curve. 3 Refer to MOSFET Temperature versus Power Dissipation Curve. The polarity value for current specifies a sink as "+," and a source as “−,” referencing the IC. January 28, 2013 2 SANKEN ELECTRIC CO., LTD. LC5540LF-DS Single-Stage Power Factor Corrected Off-Line Switching Regulator ICs LC5540LF Series |
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