BD2232G(2011) 데이터 시트보기 (PDF) - ROHM Semiconductor

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BD2232G
(Rev.:2011)

1ch Small Package High Side Switch ICs for USB Devices and Memory Cards

ROHM Semiconductor 

BD2232G, BD2233G

Technical Note

200

Ta=25°C

150

100

50

0

2

3

4

5

6

SUPPLY VOLTAGE : VIN[V]

Fig.28 Discharge on resistance

200

VIN=5.0V

150

100

50

0

-50

0

50

100

AMBIENT TEMPERATURE : Ta[℃]

Fig.29 Discharge on resistance

●Waveform Data (BD2232G)

VEN

(5V/div.)

V/OC

(5V/div.)

VOUT

(5V/div.)

IOUT

(0.5A/div.)

VIN=5V

RL=20Ω

VEN

(5V/div.)

V/OC

(5V/div.)

VOUT

(5V/div.)

IOUT

(0.5A/div.)

VIN=5V

RL=20Ω

TIME(1ms/div.)

Fig.30 Output rise characteristic

TIME(1us/div.)

Fig.31 Output fall characteristic

VEN

(5V/div.)

V/OC

(5V/div.)

CL=220uF

CL=100uF

IOUT

(0.2A/div.)

CL=47uF

VIN=5V

RL=20Ω

TIME (1ms/div.)

Fig.32 Inrush current response

V/OC

(5V/div.)

VOUT

(5V/div.)

IOUT

(0.5A/div.)

VIN=5V

TIME (5ms/div.)

Fig.33 Over-current response

ramped load

VEN

(5V/div.)

V/OC

(5V/div.)

VOUT

(5V/div.)

IOUT

(0.5A/div.)

VIN=5V

TIME (5ms/div.)

Fig.34 Over-current response

enable to shortcircuit

VEN

(5V/div.)

V/OC

(5V/div.)

VOUT

(5V/div.)

IOUT

(0.5A/div.)

VIN=5V

TIME (100ms/div.)

Fig.35 Over-current response

enable to shortcircuit

VOUT

(5V/div.)

V/OC

(5V/div.)

IOUT

(1A/div.)

VIN=5V

VIN

(5V/div.)

VOUT

(5V/div.)

IOUT

(0.2A/div.)

RL=20Ω

VIN

(5V/div.)

VOUT

(5V/div.)

IOUT

(0.2A/div.)

RL=20Ω

TIME (5ms/div.)

Fig.36 Over-current response

1 load to enabled device

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TIME (10ms/div.)

Fig.37 UVLO response

increasing VIN

6/12

TIME (10ms/div.)

Fig.38 UVLO response

decreasing VIN

2011.02 - Rev.A

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