Datasheet
1ch Compact High Side Switch ICs
1.0A Current Limit High Side Switch ICs
BD2226G
BD2227G
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°C to +85°C
W(Typ)
D(Typ)
H (Max)
General 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.
■
■
■
■
■
■
■
Over-Current Detection
Thermal Shutdown
Open-Drain Fault Flag Output
Flag Output Delay
Under-Voltage Lockout
Soft-Start Circuit
Control Input Logic
Active-High
(BD2226G)
Active-Low
(BD2227G)
Package
Features
Applications
USB hub in consumer appliances, PC, PC peripheral
equipment, and so forth
SSOP5
2.90mm x 2.80mm x 1.25mm
Typical Application Circuit
5V (Typ.)
5V(Typ)
3.3V
C
IN
VIN
IN
GND
EN
VOUT
OUT
C
L
/OC
+
-
10kΩ to
10kΩ~
100kΩ
100kΩ
Lineup
Over-Current Threshold
Min
Typ
Max
750mA
750mA
1000mA
1000mA
1350mA
1350mA
Control Input
Logic
High
Low
SSOP5
SSOP5
Package
Reel of 3000
Reel of 3000
Orderable Part Number
BD2226G-TR
BD2227G-TR
○Product
structure：Silicon monolithic integrated circuit
○This
product has not designed protection against radioactive rays
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BD2226G
BD2227G
Datasheet
Block Diagram
Over-Current
Detection
Delay
Counter
/OC
Under-Voltage
Lockout
Charge
Pump
Thermal
Shutdown
GND
EN(/EN)
IN
OUT
Pin Configurations
BD2226G
TOP VIEW
BD2227G
TOP VIEW
1 IN
2 GND
3 EN
OUT 5
1 IN
2 GND
OUT 5
/OC 4
3 /EN
/OC 4
Pin Description
Pin No.
1
2
3
4
5
Symbol
IN
GND
EN, /EN
/OC
OUT
I/O
-
-
I
O
O
Function
Input switch and the supply voltage for the IC
Ground
Enable input
EN: High level input turns on the switch (BD2226G)
/EN: Low level input turns on the switch (BD2227G)
Over-current notification terminal
Low level output during over-current or over-temperature condition
Open-drain fault flag output
Output switch
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BD2226G
BD2227G
Datasheet
Absolute Maximum Ratings
(Ta= 25°C)
Parameter
IN Supply Voltage
EN(/EN) Input Voltage
/OC Voltage
/OC Sink Current
OUT Voltage
Storage Temperature
Power Dissipation
Symbol
V
IN
V
EN
,
V
/EN
V
/OC
I
/OC
V
OUT
Tstg
Pd
Rating
-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
0.67
(Note 1)
Unit
V
V
V
mA
V
°C
W
(Note 1) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 5.4mW per 1°C above 25°C.
Caution:
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated
over the absolute maximum ratings.
Recommended Operating Conditions
Parameter
IN Operating Voltage
Operating Temperature
Symbol
V
IN
Topr
Rating
Min
2.7
-40
Typ
5.0
-
Max
5.5
+85
Unit
V
°C
Electrical Characteristics
BD2226G
(V
IN
= 5V, Ta= 25°C, unless otherwise specified.)
DC Characteristics
Parameter
Operating Current
Standby Current
EN Input Voltage
EN Input Leakage
ON-Resistance
Over-Current Threshold
Short Circuit Output Current
/OC Output Low Voltage
UVLO Threshold
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
Limit
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
Symbol
I
DD
I
STB
V
ENH
V
ENL
I
EN
R
ON
I
TH
I
SC
V
/OC
V
TUVH
V
TUVL
Limit
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
V
OUT
= Open
V
EN
= 0V
V
OUT
= Open
High Input
Low Input
V
EN
= 0V or 5V
I
OUT
= 250mA
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BD2226G
BD2227G
Datasheet
Electrical Characteristics - continued
BD2227G
(V
IN
= 5V, Ta= 25°C, unless otherwise specified.)
DC Characteristics
Parameter
Operating Current
Standby Current
/EN Input Voltage
/EN Input Leakage
ON-Resistance
Over-Current Threshold
Short Circuit Output Current
/OC Output Low Voltage
UVLO Threshold
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
Limit
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
Symbol
I
DD
I
STB
V
/ENH
V
/ENL
I
/EN
R
ON
I
TH
I
SC
V
/OC
V
TUVH
V
TUVL
Limit
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
= 0V
V
OUT
= Open
V
/EN
= 5V
V
OUT
= Open
High Input
Low Input
V
/EN
= 0V or 5V
I
OUT
= 250mA
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BD2226G
BD2227G
Datasheet
Measurement Circuit
V
IN
V
IN
A
IN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
V
EN(/EN)
OUT
A
IN
1µF
GND
EN(/EN)
/OC
OUT
R
L
A.
V
IN
Operating Current
B.
EN,/EN Input Voltage, Output Rise / Fall Time
V
IN
A
IN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
OUT
I
OUT
10kΩ
A
I
OC
IN
1µF
GND
V
EN(/EN)
EN(/EN)
/OC
OUT
C.
ON-Resistance, Over-Current Detection
Figure 1. Measurement Circuit
D.
/OC Output Low Voltage
Timing Diagram
V
EN
V
ENH
V
ENL
V
/EN
V
/ENL
V
/ENH
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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