BD2220G_11 ROHM [Rohm], BD2220G_11 Datasheet - Page 6

• Manufacturer Part Number: BD2220G_11
• Description: 1ch Small Package High Side Switch ICs for USB Devices and Memory Cards
• Manufacturer: ROHM [Rohm]

●Waveform Data (BD2220G)
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© 2011 ROHM Co., Ltd. All rights reserved.
BD2220G, BD2221G
(1A/div.)
(5V/div.)
(5V/div.)
(5V/div.)
(5V/div.)
(0.5A/div.)
I
(0.5A/div.)
V
V
(5V/div.)
V
V
I
OUT
(5V/div.)
(5V/div.)
I
V
V
V
OUT
OUT
/OC
/OC
OUT
OUT
/OC
EN
OUT
Fig.28 Output rise characteristic
Fig.34 Over-current response
Fig.31 Over-current response
1Ω load connected at EN
ramped load
TIME(1ms/div.)
TIME (5ms/div.)
TIME (2ms/div.)
V
1A/10ms
V
R
V
R
IN
IN
IN
L
L
=5V
=20Ω
=1Ω
=5V
=5V
V
(5V/div.)
(0.2A/div.)
(5V/div.)
(0.5A/div.)
V
I
(5V/div.)
(5V/div.)
(5V/div.)
I
V
V
OUT
V
OUT
(5V/div.)
(5V/div.)
(0.5A/div.)
IN
V
V
I
OUT
EN
OUT
/OC
OUT
/OC
OUT
Fig.29 Output fall characteristic
Fig.32 Over-current response
Fig.35 UVLO response
increasing V
TIME (10ms/div.)
6/12
ramped load
TIME (10ms/div.)
TIME(2us/div.)
IN
R
R
1A/50ms
V
L
V
L
=20Ω
=20Ω
IN
IN
=5V
=5V
(0.5A/div.)
(5V/div.)
(5V/div.)
(5V/div.)
V
V
I
V
OUT
(0.2A/div.)
(5V/div.)
(5V/div.)
(0.2A/div.)
(5V/div.)
(5V/div.)
V
V
I
V
I
V
EN
/OC
OUT
OUT
OUT
EN
/OC
IN
OUT
Fig.30 Inrush current response
Fig.33 Over-current response
Fig.36 UVLO response
enable to short-circuit
decreasing V
C
L
TIME (10ms/div.)
=47uF
TIME (5ms/div.)
Technical Note
C
TIME (1ms/div.)
2011.05 - Rev.B
L
=220uF
C
L
=100uF
IN
V
R
IN
R
L
V
=5V
=20Ω
L
IN
=20Ω
=5V