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BD2200GUL Fiches technique(PDF) 7 Page - Rohm

No de pièce BD2200GUL
Description  Load Switch ICs for Portable Equipment
Download  10 Pages
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Fabricant  ROHM [Rohm]
Site Internet  http://www.rohm.com
Logo ROHM - Rohm

BD2200GUL Fiches technique(HTML) 7 Page - Rohm

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Technical Note
7/9
www.rohm.com
2011.02 - Rev.A
© 2011 ROHM Co., Ltd. All rights reserved.
BD2200GUL, BD2201GUL
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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


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