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| UC3842 |
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 FAIRCHILD
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2 page 
UC3842/UC3843/UC3844/UC3845 2 Absolute Maximum Ratings Note: 1. Board Thickness 1.6mm, Board Dimension 76.2mm ×114.3mm, (Reference EIA / JSED51-3, 51-7) 2. Do not exceeed PD and SOA (Safe Operation Area) Power Dissipation Curve Thermal Data Pin Array Parameter Symbol Value Unit Supply Voltage VCC 30 V Output Current IO ±1A Analog Inputs (Pin 2.3) V(ANA) -0.3 to 6.3 V Error Amp Output Sink Current ISINK (E.A) 10 mA Power Dissipation at TA ≤25°C (8DIP) PD(Note1,2) 1200 mW Power Dissipation at TA ≤25°C (8SOP) PD(Note1,2) 460 mW Power Dissipation at TA ≤25°C (14SOP) PD(Note1,2) 680 mW Storage Temperature Range TSTG -65 ~ +150 °C Lead Temperature (Soldering, 10sec) TLEAD +300 °C Characteristic Symbol 8-DIP 8-SOP 14-SOP Unit Thermal Resistance Junction-ambient Rthj-amb(MAX) 100 265 180 °C/W 800 700 600 500 400 300 900 1000 1100 0 1020 3040 50 60 7080 90100 110 120 130 140 150 AMBIENT TEMPERATURE (℃) 1200 8DIP 14SOP 8SOP 800 700 600 500 400 300 900 1000 1100 0 1020 3040 50 30 40 50 60 70 80 60 70 80 90 100 110 90 100 110 120 130 140 120 130 140 150 AMBIENT TEMPERATURE (℃) 1200 8DIP 14SOP 8SOP VCC GND PWR GND COMP 1 N/C 2 VFB N/C 3 4 VREF N/C PWR VC 14 13 12 11 CURRENT SENSE 5 N/C RT/CT 6 7 OUTPUT 10 9 8 COMP 1 VFB 2 CURRENT SENSE RT/CT 3 4 VREF VCC OUTPUT GND 8 7 6 5 8DIP,8SOP 14SOP VCC GND PWR GND COMP 1 N/C 2 VFB N/C 3 4 VREF N/C PWR VC 14 13 12 11 CURRENT SENSE 5 N/C RT/CT 6 7 OUTPUT 10 9 8 VCC GND PWR GND COMP 1 N/C 2 VFB N/C 3 4 VREF N/C PWR VC 14 13 12 11 CURRENT SENSE 5 N/C RT/CT 6 7 OUTPUT 10 9 8 COMP 1 VFB 2 CURRENT SENSE RT/CT 3 4 VREF VCC OUTPUT GND 8 7 6 5 COMP 1 VFB 2 CURRENT SENSE RT/CT 3 4 VREF VCC OUTPUT GND 8 7 6 5 8DIP,8SOP 14SOP |
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