BD2046AFJ_11 Datasheet, PDF (3/14 Pages) Rohm – 2ch High Side Switch ICs for USB Devices and Memory Cards

BD2046AFJ, BD2056AFJ
●Measurement circuit
VDD
1µF
A
GND
IN
V EN
EN1
V EN
EN2
/OC1
OUT1
OUT2
/OC2
Technical Note
VDD
1µF
GND
IN
VEN
EN1
VEN
EN2
/OC1
OUT1
OUT2
/OC2
RL CL
RL CL
Operating current
VDD
1µF
10k 10k
GND
IN
VEN
EN1
VEN
EN2
/OC1
OUT1
OUT2
/OC2
IOUT
IOUT
EN, /EN input voltage, Output rise, fall time
VDD
1µF
IOUT
VDD
IOUT
GND
IN
VEN
EN1
VEN
EN2
/OC1
OUT1
OUT2
/OC2
ON resistance, Over current detection
Fig.1 Measurement circuit
OC output LOW voltage
●Timing diagram
○BD2046AFJ
VOUT
TON1
90%
10%
TON2
VEN 50%
TOFF1
90%
10%
TOFF2
50%
○BD2056AFJ
VOUT
TON1
90%
10%
TON2
VCTRL 50%
TOFF1
90%
10%
TOFF2
50%
Fig.2 Timing diagram
Fig.3 Timing diagram
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3/13
2011.05 - Rev.B