Datasheet
1ch Small Package
High Side Switch ICs
for USB Devices and Memory Cards
BD2226G-LB BD2227G-LB
General Description
This is the product guarantees long time support in
Industrial market.
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
over-current
detection,
thermal
shutdown,
under-voltage lockout and soft-start functions.
Key Specifications
Input voltage range:
2.7V to 5.5V
ON resistance :
150mΩ(Typ.)
Over current threshold:
0.75A min., 1.35A max.
Standby current:
0.01μA (Typ.)
Operating temperature range:
-40℃ to +85℃
Package
SSOP5
W(Typ.) D(Typ.) H (Max.)
2.90mm x 2.80mm x 1.25mm
Features
■
■
■
■
■
■
■
Long time support a product for Industrial
applications
Over-Current Detection
Thermal Shutdown
Open-Drain Fault Flag Output
Under-Voltage Lockout
Soft-Start Circuit
Control Input Logic
Active-High
(BD2226G)
Active-Low
(BD2227G)
SSOP5
Applications
Industrial Equipment,
USB hub in consumer appliances, Car accessory,
PC,PC peripheral equipment, and so forth
Typical Application Circuit
5V (Typ.)
3.3V
C
IN
VIN
GND
VOUT
+
C
L
-
/OC
10kΩ~
100kΩ
EN
Lineup
Over current threshold
Min.
Typ.
Max.
750mA
1000mA
1350mA
750mA
1000mA
1350mA
Control input logic
High
Low
SSOP5
SSOP5
Package
Reel of 3000
Reel of 3000
Orderable Part Number
BD2226G – LBTR
BD2227G – LBTR
○Product
structure：Silicon monolithic integrated circuit
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© 2013 ROHM Co., Ltd. All rights reserved.
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○This
product has no designed protection against radioactive rays.
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BD2226G-LB BD2227G-LB
Block Diagram
Datasheet
Over-Current
Detection
Delay
Counter
/OC
Under-Voltage
Lockout
Charge
Pump
Thermal
Shutdown
GND
EN(/EN)
VIN
VOUT
Pin Configurations
BD2226G
TOP VIEW
BD2227G
TOP VIEW
1 VIN
2 GND
3 EN
VOUT 5
1 VIN
2 GND
VOUT 5
/OC 4
3 /EN
/OC 4
Pin Description
Pin No.
1
Symbol
VIN
I/O
-
Function
Switch input and supply voltage for the IC.
2
GND
-
Ground.
Enable input.
EN: High level input turns on the switch. (BD2226G)
/EN: Low level input turns on the switch. (BD2227G)
Over-current detection pin
Low level output during over-current or over-temperature condition.
Open-drain fault flag output.
Switch output.
3
EN, /EN
I
4
/OC
O
5
VOUT
O
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BD2226G-LB BD2227G-LB
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 to 6.0
-0.3 to 6.0
-0.3 to 6.0
5
-0.3 to V
IN
+ 0.3
-55 to 150
675
*1
Unit
V
V
V
mA
V
℃
mW
Datasheet
*1 Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 5.4mW per 1℃ above 25℃
Recommended Operating Range
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
℃
Electrical Characteristics
(V
IN
= 5V, Ta= 25℃, unless otherwise specified.)
DC Characteristics
Parameter
Operating current
Standby current
EN(/EN) input voltage
EN(/EN) input leakage
On-resistance
Over-current threshold
Short circuit output current
/OC output low voltage
UVLO threshold
Symbol
I
DD
I
STB
V
EN(/EN)
V
EN(/EN)
I
EN(/EN)
R
ON
I
TH
I
SC
V
/OC
V
TUV
Limits
Min.
-
-
2.0
-
-1
-
750
500
-
2.1
2.0
Typ.
110
0.01
-
-
0.01
150
1000
-
-
2.3
2.2
Max.
160
5
-
0.8
1
200
1350
-
0.4
2.5
2.4
Unit
μA
μA
V
V
μA
mΩ
mA
mA
V
V
V
V
OUT
= 0V, RMS
I
/OC
= 0.5mA
V
IN
increasing
V
IN
decreasing
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
I
OUT
= 250mA
AC Characteristics
Parameter
Output rise time
Output turn-on time
Output fall time
Output turn-off time
/OC delay time
Symbol
T
ON1
T
ON2
T
OFF1
T
OFF2
T
/OC
Limits
Min.
0.2
0.3
0.1
0.3
10
Typ.
1
1.5
1
3
15
Max.
6
10
20
40
20
Unit
ms
ms
μs
μs
ms
Conditions
R
L
= 20Ω
R
L
= 20Ω
R
L
= 20Ω
R
L
= 20Ω
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BD2226G-LB BD2227G-LB
Measurement Circuit
V
IN
V
IN
Datasheet
A
VIN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
V
EN(/EN)
VOUT
A
VIN
1µF
GND
EN(/EN)
/OC
VOUT
R
L
A.
Operating current
B.
EN,/EN Input voltage, Output rise/fall time
V
IN
V
IN
10kΩ
A
VIN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
I
OUT
VOUT
A
I
OC
VIN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
VOUT
C.
On-resistance, Over-current detection
Figure 1. Measurement circuit
D.
/OC Output low voltage
Timing Diagram
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
Figure 2. Output rise/fall time
(BD2226G)
Figure 3. Output rise/fall time
(BD2227G)
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BD2226G-LB BD2227G-LB
Typical Performance Curves
Datasheet
140
[μA]
120
100
80
60
40
20
0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
Figure 4. Operating current
EN,/EN enable
140
[μA]
Ta=25°C
V
IN
=5.0V
120
100
80
60
40
20
0
6
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
Figure 5. Operating current
EN,/EN enable
DD
OPERATING CURRENT : I
DD
OPERATING CURRENT : I
1.0
1.0
Ta=25°C
[μA]
STB
V
IN
=5.0V
[μA]
STANDBY CURRENT : I
DD
0.8
0.8
STANDBY CURRENT : I
0.6
0.6
0.4
0.4
0.2
0.2
0.0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
Figure 6. Standby current
EN,/EN disable
0.0
6
-50
0
50
AMBIENT TEMPERATURE : Ta[
℃
]
Figure 7. Standby current
EN,/EN disable
100
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TSZ22111½15½001
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TSZ02201-0E3E0H300400-1-2
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