Power Management Switch ICs for PCs and Digital Consumer Products
1ch Small Package
High Side Switch ICs
for USB Devices and Memory Cards
BD2226G, BD2227G
No.11029EBT18
●Description
BD2226G and BD2227G are low on-resistance N-channel MOSFET high-side power switches, optimized for Universal
Serial Bus (USB) applications. BD2226G and BD2227G are equipped with the function of over-current detection, thermal
shutdown, under-voltage lockout and soft-start.
●Features
1) Low On-Resistance (Typ. 150mΩ) N-channel MOSFET Built-in
2) Over-Current Detection
3) Thermal Shutdown
4) Open-Drain Fault Flag Output
5) Under-Voltage Lockout
6) Soft-Start Circuit
7) Input Voltage Range: 2.7V ~ 5.5V
8) Control Input Logic Active-High (BD2226G), Active-Low (BD2227G)
9) SSOP5 Package
●Absolute
Maximum Ratings (Ta=25℃)
Parameter
VIN supply voltage
EN(/EN) input voltage
/OC voltage
/OC sink current
VOUT voltage
Storage temperature
Power dissipation
Symbol
V
IN
V
EN(/EN)
V
/OC
I
/OC
V
OUT
T
STG
Pd
Ratings
-0.3 ~ 6.0
-0.3 ~ 6.0
-0.3 ~ 6.0
5
-0.3 ~ V
IN
+ 0.3
-55 ~ 150
675
*1
Unit
V
V
V
mA
V
℃
mW
*1 Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 5.4mW per 1℃ above 25℃
* This IC is not designed to be radiation-proof.
●Operating
Conditions
Parameter
VIN operating voltage
Operating temperature
Symbol
V
IN
T
OPR
Ratings
Min.
2.7
-40
Typ.
5.0
-
Max.
5.5
85
Unit
V
℃
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1/12
2011.05 - Rev.B
BD2226G, BD2227G
●Electrical
Characteristics
DC Characteristics
Parameter
(V
IN
= 5V, Ta= 25℃, unless otherwise specified.)
Limits
Min.
-
Typ.
110
Max.
160
Technical Note
Symbol
Unit
Conditions
V
EN
= 5V (BD2226G)
V
/EN
= 0V (BD2227G)
V
OUT
= open
V
EN
= 0V (BD2226G)
V
/EN
= 5V (BD2227G)
V
OUT
= open
High input
Low input
V
EN(/EN)
= 0V or 5V
Operating current
I
DD
μA
Standby current
I
STB
V
EN(/EN)
V
EN(/EN)
I
EN(/EN)
-
2.0
-
-1
0.01
-
-
0.01
5
-
0.8
1
μA
V
V
μA
EN(/EN) input voltage
EN(/EN) input leakage
On-resistance
R
ON
-
150
200
mΩ
I
OUT
= 250mA
Over-current threshold
I
TH
750
1000
1350
mA
Short circuit output current
I
SC
500
-
-
mA
V
OUT
= 0V, RMS
/OC output low voltage
V
/OC
-
2.1
2.0
-
2.3
2.2
0.4
2.5
2.4
V
V
V
I
/OC
= 0.5mA
V
IN
increasing
V
IN
decreasing
UVLO threshold
V
TUV
AC Characteristics
Parameter
Symbol
Limits
Min.
0.2
Typ.
1
Max.
6
Unit
Conditions
Output rise time
T
ON1
ms
R
L
= 20Ω
Output turn-on time
T
ON2
0.3
1.5
10
ms
R
L
= 20Ω
Output fall time
T
OFF1
0.1
1
20
μs
R
L
= 20Ω
Output turn-off time
T
OFF2
0.3
3
40
μs
R
L
= 20Ω
/OC delay time
T
/OC
10
15
20
ms
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© 2011 ROHM Co., Ltd. All rights reserved.
2/12
2011.05 - Rev.B
BD2226G, BD2227G
●Measurement
Circuit
V
IN
V
IN
Technical Note
A
VIN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
V
EN(/EN)
VOUT
A
VIN
1µF
GND
EN(/EN)
/OC
VOUT
R
L
Operating current
EN,/EN Input voltage, Output rise/fall time
V
IN
V
IN
10kΩ
A
VIN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
VOUT
I
OUT
A
I
OC
VIN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
VOUT
On-resistance, Over-current detection
Fig.1 Measurement circuit
●Timing
Diagram
/OC Output low voltage
V
EN
50%
50%
V
/EN
50%
50%
T
ON2
90%
T
OFF2
90%
10%
T
ON2
90%
T
OFF2
90%
10%
V
OUT
10%
V
OUT
10%
T
ON1
T
OFF1
T
ON1
T
OFF1
Fig.2 Output rise/fall time
(BD2226G)
Fig.3 Output rise/fall time
(BD2227G)
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© 2011 ROHM Co., Ltd. All rights reserved.
3/12
2011.05 - Rev.B
BD2226G, BD2227G
●Reference
Data
140
140
Technical Note
1.0
Ta=25°C
[μA]
[μA]
V
IN
=5.0V
STB
[μA]
Ta=25°C
0.8
120
100
80
60
40
20
0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
120
100
80
60
40
20
0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
DD
OPERATING CURRENT : I
OPERATING CURRENT : I
DD
STANDBY CURRENT : I
0.6
0.4
0.2
0.0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
Fig.4 Operating current
EN,/EN enable
1.0
[V]
2.0
Fig.5 Operating current
EN,/EN enable
2.0
EN
[V]
Fig.6 Standby current
EN,/EN disable
V
IN
=5.0V
[μA]
0.8
DD
Ta=25°C
1.5
V
IN
=5.0V
Low to High
1.5
ENABLE INPUT CURRENT : V
EN
Low to High
ENABLE INPUT CURRENT : V
STANDBY CURRENT : I
0.6
High to Low
1.0
1.0
High to Low
0.4
0.2
0.5
0.5
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
0.0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
Fig.7 Standby current
EN,/EN disable
200
200
Fig.8 EN,/EN input voltage
Fig.9 EN,/EN input voltage
T
OVERCURRENT THRESHOLD : I
H
[A]
Ta=25°C
ON RESISTANCE : R
ON
[mΩ]
150
ON RESISTANCE : R
ON
[mΩ]
150
1.3
V
IN
=5.0V
Ta=25°C
1.2
1.1
1.0
0.9
0.8
0.7
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
100
100
50
50
0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
Fig.10 On-resistance
Fig.11 On-resistance
Fig.12 Over-current threshold
1.3
T
OVERCURRENT THRESHOLD : I
H
[A]
100
100
V
IN
=5.0V
/OC OUTPUT LOW VOLTAGE :
V
/OC
[mV]
/OC OUTPUT LOW VOLTAGE :
V
/OC
[mV]
1.2
1.1
1.0
0.9
0.8
0.7
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
V
IN
=5.0V
Ta=25°C
80
80
60
60
40
40
20
20
0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
Fig.13 Over-current threshold
Fig.14 /OC output low voltage
Fig.15 /OC output low voltage
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© 2011 ROHM Co., Ltd. All rights reserved.
4/12
2011.05 - Rev.B
BD2226G, BD2227G
Technical Note
2.5
UVLO HYSTERESIS VOLTAGE:V
HSY
[V]
V
TUVL
[V]
1.0
5.0
V
IN
=5.0V
2.4
V
IN
=5.0V
0.8
RISE TIME : T
ON1
[ms]
4.0
Ta=25°C
TUVH
,
UVLO THRESHOLD : V
2.3
V
TUVH
0.6
3.0
2.2
0.4
2.0
2.1
V
TUVL
0.2
1.0
2.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃]
0.0
-50
0
50
AMBIENT TEMPERATURE : Ta[
℃
]
100
0.0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
Fig.16 UVLO threshold
Fig.17 UVLO hysteresis voltage
Fig.18 Output rise time
5.0
5.0
5.0
V
IN
=5.0V
[ms]
4.0
RISE TIME : T
ON1
[ms]
4.0
Ta=25°C
[ms]
4.0
V
IN
=5.0V
ON2
TURN ON TIME : T
TURN ON TIME : T
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
3.0
3.0
ON2
3.0
2.0
2.0
2.0
1.0
1.0
1.0
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
0.0
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
Fig.19 Output rise time
Fig.20 Output turn-on time
Fig.21 Output turn-on time
5.0
5.0
6.0
Ta=25°C
4.0
FALL TIME : T
OFF1
[μs]
FALL TIME : T
OFF1
[μs]
4.0
V
IN
=5.0V
[μs]
5.0
4.0
3.0
2.0
1.0
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
2
Ta=25°C
2.0
2.0
1.0
1.0
0.0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
0.0
TURN OFF TIME : T
3.0
3.0
OFF2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
Fig.22 Output fall time
Fig.23 Output fall time
Fig.24 Output turn-off time
6.0
20
20
V
IN
=5.0V
OFF2
[μs]
Ta=25°C
/OC DDLAY TIME : T
/OC
[ms]
/OC DDLAY TIME : T
/OC
[ms]
18
18
V
IN
=5.0V
5.0
4.0
3.0
2.0
1.0
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
TURN OFF TIME : T
16
16
14
14
12
12
10
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
10
-50
0
50
AMBIENT TEMPERATURE : Ta[
℃
]
100
Fig.25 Output turn-off time
Fig.26 /OC delay time
Fig.27 /OC delay time
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© 2011 ROHM Co., Ltd. All rights reserved.
5/12
2011.05 - Rev.B
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