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LC5223D 데이터시트(PDF) 2 Page - Sanken electric |
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LC5223D 데이터시트(HTML) 2 Page - Sanken electric |
2 / 10 page Selection Guide Part Number Package Maximum Input Voltage VBB(max) (V) Output MOSFET RDS(ON)(max) (Ω) LC5223D DIP8 250 1.3 LC5226D 450 3 Absolute Maximum Ratings Unless specifically noted, TA is 25°C Characteristic Symbol Notes Pins Rating Unit Main Power Supply Voltage VBB LC5223D 6 – 8 250 V LC5226D 450 V Output Breakdown Voltage VO(BR) LC5223D 5 – 4 250 V LC5226D 450 V Output Current1 IO Pulse width ≥ 1 μs 5 – 4 1.0 A PWM Pin Voltage2 VPWM 2 – 8 −0.3 to VZ V REF Pin Input Voltage2 VREF 3 – 8 −0.3 to VZ V SEN Pin Voltage VSEN Pulse width ≥ 1 μs 4 – 8 −0.3 to 4.0 V Allowable Power Dissipation3,4 PD On Sanken evaluation PCB ― 1.73 W Operating Ambient Temperature TA ―−40 to 105 °C Storage Temperature Tstg ―−40 to 150 °C Junction Temperature TJ ― 150 °C 1 The output current value may be restricted based on duty cycle, ambient air temperature, or heat dissipation conditions. In any case, please be sure to keep from exceeding the junction temperature, TJ. 2 Zener diodes are built-in between the PWM pin and GND, and between the REF pin and GND. VZ is the breakdown voltage of these internal Zener diodes, and VZ = 6.3 V (typ). In addition, the maximum sink current is 1 mA. 3 Allowable loss, PD , is dependent on the circuit layout of the PCB to be used. 4 Please refer to the Ambient Temperature versus Power Dissipation Curve. The polarity value for current specifies a sink as "+," and a source as “−,” referencing the IC. Ambient Temperature, TA (°C) 2.0 1.5 1.0 0.5 0 0 25 50 100 75 150 125 Ambient Temperature versus Power Dissipation On Sanken evaluation PCB R θJ-A = 72 °C/W PD = 1.73 W DIP LC5223D and LC5226D 2 SANKEN ELECTRIC CO., LTD. LC5223D/26D-DS Off-Line DC/DC LED Driver ICs August 8, 2012 |
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