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SI-8020 数据表(PDF) 4 Page - Sanken electric |
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SI-8020 数据表(HTML) 4 Page - Sanken electric |
4 / 5 page 89 sStandard External Circuit sNotes of Pattern Design 1) Thick lines in the Standard External Circuit are lines through which a large current flows. Make these pattern lines as thick as possible. 2) Place capacitor C1 on the input side as closely as possible to terminals no.2 and no.4 of the STR7000/7100 series. C1 may be used in combination with a smoothing capacitor for rectifying, but the above points must be taken into consideration. In cases where C1 is not provided or it is placed too far from the terminals stated above, abnormal oscillation due to poorer transient response or increased ringing may occur. 3) Connect voltage sensing terminal VO.S and GND as closely as possible to output capacitor C4 (a current of approximately 1mA flows into the VO.S terminal). If they are placed too far from C4, abnormal oscillation due to decreased regulation or increased switching ripple may occur. 4) Connect current sensing terminal C.S and GND as closely as possible to the detection resistor Rs (a current of approximately 0.5mA flows from the CS terminal). If they are placed too far from Rs, a decrease of the overcurrent setting point due to the voltage drop in the pattern, or malfunction of the protection circuit due to increased ringing may occur. sTa-PD Characteristics STR7000 Series STR7100 Series 3 2 9 4 VIN C1 C5 330P C2 330p C3 10 µF 2200 µF C4 1500 µF × 2 (parallel) VO GND *C5 STR7100 Series only 1 25 5 1 10 8 6 7 3 4 VIN GND F/W DRIVE STR7000 STR7100 SERIES SW VIN VO.S RS VO. ADJ OSC. OUT SHUT DOWN VREF C.S C.A C.B GND DRIVE L * 6A ... 0.02 Ω 12A ... 0.01 Ω 5V ... 200 µH 12V ... 250 µH 15V 24V ... 300 µH SI-8020 SERIES 40 35 30 25 20 15 10 5 0 –20 0 25 50 75 100 125 Ambient Temperature Ta ( °C) 200 ×300×2 200 ×200×2 100 ×200×2 100 ×100×2 75 ×75×2 Without heatsink Without Mica With Silicon Grease Heatsink: Aluminum Unit: mm 40 35 30 25 20 15 10 5 0 –20 0 25 50 75 100 125 Ambient Temperature Ta ( °C) 200 ×300×2 200 ×200×2 100 ×200×2 100 ×100×2 75 ×75×2 Without heatsink Without Mica With Silicon Grease Heatsink: Aluminum Unit: mm qSTR7000+SI-8020 Series |
类似零件编号 - SI-8020 |
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类似说明 - SI-8020 |
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