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SI-8050JD Datasheet(PDF) 2 Page - Sanken electric |
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SI-8050JD Datasheet(HTML) 2 Page - Sanken electric |
2 / 2 page 47 ICs SI-8000JD Series ■External Dimensions (TO263-5) (Unit : mm) Pin Assignment q VIN w SWOUT e GND r VOS t ON/OFF Plastic Mold Package Type Flammability: 94V-0 Product Mass: Approx. 1.48g 9.90 ±0.2 Case Temperature Measurement Point (15 °) (0.5) 2-R0.3 10.0 ±0.02 3-R0.3 (2 ×R0.45) (R0.3) (R0.3) 0.88 ±0.10 1.5 Dp: ±0.2 φ (1.7 ±0.25 ) 12345 (1.7 ±0.25 ) (1.7 ±0.25 ) (1.7 ±0.25 ) 0.8 ±0.1 0.8 ±0.1 4.5 ±0.2 1.3 0.10 ±0.15 2.4 ±0.2 +0.10 –0.05 10.0 ±0.2 (4.4) (8.0) (3 °) (3 °) (3 °) (3 °) (3 °) 0~6 ° ■Block Diagram ■Typical Connection Diagram 4 3 GND 2 VIN ON/OFF SW OUT 1 5 PReg. OCP Reset OSC + – Comp. Error Amp. Latch & Drive TSD ON/OFF Soft Start VREF + – VIN C1 C3 Di L1 C2 VIN GND ON/OFF GND SI-8000JD SW VS 12 4 3 5 + + VOUT GND C1: 50V/220 µF C2: 25V/470 µF C3: 10V/0.47 µF (Only when using soft-start function) L1: 100 µH Di : SJPB-H6 (Sanken) ■Reference Data Copper Laminate Area on Glass Epoxy Board vs. Thermal Resistance (Junction to Ambient Air) (Typical Value) Output Current vs. Power Dissipation (Typical) 55 50 45 40 35 30 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0 200 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 400 600 800 1000 Copper Laminate Area (mm2) Output Current IO (A) VIN 8V 20V 30V 40V 1200 1400 1600 1800 With glass epoxy board of 40 × 40 mm ■Ta-PD Characteristics The efficiency depends on the input voltage and the output current. Therefore, obtain the value from the efficiency graph and substitute the percentage in the formula above. VO : Output Voltage VIN : Input Voltage IO : Output Current ηχ : Efficiency (%) VF :D1 forward voltage 0.4V(IO=2A)(SJPB-H6) Thermal design for D1 must be considered separately. 3.5 3 2.5 2 1.5 1 0.5 0 –25 0 25 50 75 100 125 Ambient Temperature Ta ( °C) Copper Area 40 ×40 mm ( j-a : 33.3 °C/W) 20 ×40 mm ( j-a : 37 °C/W) 20 ×20 mm ( j-a :44 °C/W) 10 ×10 mm ( j-a : 53 °C/W) θ θ θ θ PD=VO·IO 100 –1 –VF·IO 1– VO ηχ VIN |
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