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BD2200GUL Fiches technique(PDF) 7 Page - Rohm |
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BD2200GUL Fiches technique(HTML) 7 Page - Rohm |
7 / 10 page Technical Note 7/9 www.rohm.com 2011.02 - Rev.A © 2011 ROHM Co., Ltd. All rights reserved. BD2200GUL, BD2201GUL 0 100 200 300 400 500 600 700 0 25 50 75 100 125 150 AMBIENT TEMPERATURE : Ta [℃] ● Operation Description 1. Switch operation Each VIN and VOUT pins are connected to MOSFET’s drain and source. By setting EN input to High level, the internal charge pump operates and turns on MOSFET. When MOSFET is turned on, the switch becomes bidirectional characteristics. Consequently, in case of VIN < VOUT, the current is flowing from VOUT to VIN. 2. Output discharge circuit Discharge circuit operates when switch is off. When discharge circuit operates, 70Ω (Typ.) resistor is connected between VOUT pin and GND pin. This discharges the electrical charge quickly. Fig.27 Operation timing ● Application Circuit Example ● Power Dissipation Characteristics Fig.28 Application circuit example EN VOUT Discharge circuit ON ON OFF OFF VIN ON **This application circuit does not guarantee its operation. When using the circuit with changes to the external circuit constants, make sure to leave an adequate margin for external components including static and transitional characteristics as well as dispersion of the IC. Fig.29 Power dissipation curve (Pd-Ta Curve) (VCSP50L1 package) VIN VIN EN VOUT VOUT GND LOAD ON/OFF VIN |
Numéro de pièce similaire - BD2200GUL |
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Description similaire - BD2200GUL |
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