BD2200GUL_11 ROHM [Rohm], BD2200GUL_11 Datasheet - Page 7

• Manufacturer Part Number: BD2200GUL_11
• Description: Load Switch ICs for Portable Equipment
• Manufacturer: ROHM [Rohm]

●Operation Description
●Application Circuit Example
BD2200GUL, BD2201GUL
© 2011 ROHM Co., Ltd. All rights reserved.
VIN
www.rohm.com
1. Switch operation
2. Output discharge circuit
**This application circuit does not guarantee its 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.
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.
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.
ON/OFF
Fig.28 Application circuit example
VIN
VIN
EN
Discharge circuit ON
VOUT
VOUT
GND
VOUT
VIN
EN
Fig.27 Operation timing
LOAD
OFF
7/9
●Power Dissipation Characteristics
ON
700
600
500
400
300
200
100
0
0
Fig.29 Power dissipation curve (Pd-Ta Curve)
OFF
25
AMBIENT TEMPERATURE : Ta [ ℃ ]
(VCSP50L1 package)
50
ON
75
Technical Note
2011.02 - Rev.A
100
125
150