Datasheet
Load Switch ICs
0.2A, 0.5A Current Load Switch ICs
for Portable Equipment
BD2202G
BD2206G
Key Specifications
Input Voltage Range:
2.7V to 3.6V
ON-Resistance:
150mΩ(Typ)
Operating Load Current:
BD2202G
0.2A
BD2206G
0.5A
Over-Current Threshold:
BD2202G
0.25A (Min), 1.0A (Max)
BD2206G
0.8A (Min), 1.6A (Max)
Standby Current:
0.01μA (Typ)
Operating Temperature Range:
-25°C to +85°C
W(Typ)
D(Typ)
H(Max)
General Description
BD2202G and BD2206G are high-side switch ICs using a
single N-Channel MOSFET with low on resistance. These
ICs have over-current protection and this is triggered
when the over-current condition exceeds the
over-current shutdown time. After triggering the
over-current protection, the switch will be latched off
until enable is reset.
Moreover, soft start, under-voltage lockout, and thermal
shutdown are integrated. These ICs are used in power
supply lines of memory card slots.
Single Low ON-Resistance (Typ= 150mΩ)
N-Channel MOSFET
Control Input Logic:
Active-High
Soft Start Function
Over-Current Protection Circuit
Thermal Shutdown Circuit
Under-Voltage Lockout
Features
Package
Applications
Memory Card Slots, Digital Still Cameras, Cell Phones,
Notebook PCs
SSOP5
2.90mm x 2.80mm x 1.25mm
Typical Application Circuit
IN
V
IN
C
IN
OUT
C
OUT
R
OUT
OFF
ON
EN
GND
Lineup
Over-Current Threshold
Min
Typ
Max
0.25A
-
1.0A
0.8A
-
1.6A
Control Input
Logic
High
High
SSOP5
SSOP5
Package
Reel of 3000
Reel of 3000
Orderable Part Number
BD2202G-TR
BD2206G-TR
○Product
structure：Silicon monolithic integrated circuit
○This
product has not designed protection against radioactive rays
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BD2202G
BD2206G
Datasheet
Block Diagram
IN
Current
Limit
GND
UVLO
Control Logic
Charge
Pump
OUT
EN
Thermal
Shutdown
Pin Configuration
TOP VIEW
1 IN
2 GND
3 EN
NC 4
OUT 5
Pin Description
Pin Number
1
Pin Name
IN
I/O
I
Pin Function
Power supply input terminal.
Input terminal to the power switch and supply of the internal circuit.
Ground.
2
GND
I
3
EN
I
Power switch enable input (active high).
4
N.C
-
No connection.
5
OUT
O
Power switch output.
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BD2202G
BD2206G
Datasheet
Absolute Maximum Ratings
Parameter
Supply Voltage
EN Voltage
OUT Voltage
Storage Temperature
Power Dissipation
Symbol
V
IN
V
EN
V
OUT
Tstg
Pd
Limit
-0.3 to +6.0
-0.3 to +6.0
-0.3 to V
IN
+ 0.3
-55 to +150
0.67
(Note 1)
Unit
V
V
V
°C
W
(Note 1) Derate by 5.4mW/°C when operating above Ta=25°C (mounted on 70mm
x
70mm
x
1.6mm board).
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. 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
BD2202G
Parameter
Operating Voltage Range
Operating Temperature Range
Operating Load Current
BD2206G
Parameter
Operating Voltage Range
Operating Temperature Range
Operating Load Current
Symbol
V
IN
Topr
I
LO
Rating
Min
2.7
-25
0
Typ
-
-
-
Max
3.6
+85
500
Unit
V
°C
mA
Symbol
V
IN
Topr
I
LO
Rating
Min
2.7
-25
0
Typ
-
-
-
Max
3.6
+85
200
Unit
V
°C
mA
Electrical Characteristics
BD2202G
(Unless otherwise specified, V
IN
= 3.3V, Ta= 25°C)
DC Characteristics
Limit
Parameter
Symbol
Min
Typ
Operating Current
Standby Current
EN Input Voltage
EN Input Current
ON-Resistance
Over-Current Threshold
Short-Circuit Output Current
Output Leak Current
UVLO Threshold
AC Characteristics
Parameter
Output Rise Time
Output Turn ON Time
Output Fall Time
Output Turn OFF Time
Over-Current Shutdown Time 1
Over-Current Shutdown Time 2
Symbol
t
ON1
t
ON2
t
OFF1
t
OFF2
t
BLANK1
t
BLANK2
Limit
Min
0.25
0.4
50
50
5
3
Typ
1.2
2
100
100
10
-
I
DD
I
STB
V
EN
I
EN
R
ON
I
TH
I
SC
I
LEAK
V
TUVH
V
TUVL
-
-
2.0
-
-1.0
-
0.25
200
-
2.1
2.0
70
0.01
-
-
+0.01
150
-
-
0.01
2.3
2.2
Max
90
1
-
0.8
+1.0
200
1.0
600
10
2.5
2.4
Unit
μA
μA
V
V
μA
mΩ
A
mA
μA
V
V
V
OUT
= 0V
Conditions
V
EN
= 3.3V, V
OUT
= OPEN
V
EN
= 0V, V
OUT
= OPEN
High Level Input
Low Level Input
V
EN
= 0V or V
EN
= 3.3V
I
OUT
= 50mA
V
EN
= 0V, V
OUT
= 0V
V
IN
Increasing
V
IN
Decreasing
Max
6
10
200
200
15
15
Unit
ms
ms
μs
μs
ms
ms
Conditions
R
OUT
= 500Ω, C
OUT
= 0.1μF
R
OUT
= 500Ω, C
OUT
= 0.1μF
R
OUT
= 500Ω, C
OUT
= 0.1μF
R
OUT
= 500Ω, C
OUT
= 0.1μF
At Continuous Over-Current
At Discontinuous Over-Current
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BD2202G
BD2206G
Datasheet
Electrical Characteristics - continued
BD2206G
(Unless otherwise specified, V
IN
= 3.3V, Ta= 25°C)
DC Characteristics
Limit
Parameter
Symbol
Min
Typ
Operating Current
Standby Current
EN Input Voltage
EN Input Current
ON-Resistance
Over-Current Threshold
Short-Circuit Output Current
Output Leak Current
UVLO Threshold
AC Characteristics
Parameter
Output Rise Time
Output Turn ON Time
Output Fall Time
Output Turn OFF Time
Over-Current Shutdown Time 1
Over-Current Shutdown Time 2
Symbol
t
ON1
t
ON2
t
OFF1
t
OFF2
t
BLANK1
t
BLANK2
Limit
Min
0.25
0.4
50
50
5
3
Typ
1.2
2
100
100
10
-
I
DD
I
STB
V
EN
I
EN
R
ON
I
TH
I
SC
I
LEAK
V
TUVH
V
TUVL
-
-
2.0
-
-1.0
-
0.8
750
-
2.1
2.0
70
0.01
-
-
+0.01
150
-
-
0.01
2.3
2.2
Max
90
1
-
0.8
+1.0
200
1.6
1350
10
2.5
2.4
Unit
μA
μA
V
V
μA
mΩ
A
mA
μA
V
V
V
OUT
= 0V
Conditions
V
EN
= 3.3V, V
OUT
= OPEN
V
EN
= 0V, V
OUT
= OPEN
High Level Input
Low Level Input
V
EN
= 0V or V
EN
= 3.3V
I
OUT
= 50mA
V
EN
= 0V, V
OUT
= 0V
V
IN
Increasing
V
IN
Decreasing
Max
6
10
200
200
15
15
Unit
ms
ms
μs
μs
ms
ms
Conditions
R
OUT
= 500Ω, C
OUT
= 0.1μF
R
OUT
= 500Ω, C
OUT
= 0.1μF
R
OUT
= 500Ω, C
OUT
= 0.1μF
R
OUT
= 500Ω, C
OUT
= 0.1μF
At Continuous Over-Current
At Discontinuous Over-Current
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BD2202G
BD2206G
Datasheet
Measurement Circuit
A
IN
GND
EN
NC
OUT
IN
GND
EN
OUT
NC
A. Operating Current
B.
EN Input Voltage, Output Rise / Fall Time
V
IN
GND
EN
NC
OUT
IN
GND
EN
NC
OUT
A
C.
ON-Resistance
D.
Over-Current Protection Characteristics
Figure 1. Measurement Circuit
Timing Diagram
V
EN
V
ENH
V
ENL
Over current detection
Over-Current Detection
t
ON2
t
OFF2
V
OUT
90%
V
OUT
10%
t
ON1
90%
I
OUT
10%
t
OFF1
T
BLANK
t
BLANK
Figure 2. Switch Turn ON / OFF Time
Figure 3. Over-Current Limits Characteristics
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