Datasheet
1 Channnel Compact High Side Switch ICs
0.75A Current Limit High Side Switch ICs
BD2246G
BD2247G
●Key
Specifications
Input voltage range:
2.7V to 5.5V
ON resistance : (VIN=5V)
110mΩ(Typ.)
Over current threshold:
0.63A min., 0.9A max.
Standby current:
0.01μA (Typ.)
Operating temperature range:
-40℃ to +85℃
●General
Description
BD2246G and BD2247G are low on-resistance
N-channel MOSFET high-side power switches,
optimized for Universal Serial Bus (USB) applications.
BD2246G and BD2247G are equipped with the
function of over-current detection, thermal shutdown,
under-voltage lockout and soft-start.
●Features
Low On-Resistance (Typ. 110mΩ) N-channel
MOSFET Built-in
Reverse Current Protection when Power Switch Off
Output Discharge Function
Over-Current Detection
Thermal Shutdown
Open-Drain Fault Flag Output
Under-Voltage Lockout
Soft-Start Circuit
Control Input Logic
Active-High : BD2246G
Active-Low : BD2247G
●Package
SSOP5
W(Typ.) D(Typ.) H (Max.)
2.90mm x 2.80mm x 1.25mm
SSOP5
●Typical
Application Circuit
5V (Typ.)
C
IN
VIN
GND
EN(/EN)
VOUT
+
C
L
/OC
-
●Lineup
Over current detection(@V
IN
=5V)
Min.
Typ.
Max.
0.63A
0.765A
0.9A
0.63A
0.765A
0.9A
Control input logic
High
Low
SSOP5
SSOP5
Package
Reel of 3000
Reel of 3000
Orderable Part Number
BD2246G – TR
BD2247G – TR
○Product
structure：Silicon monolithic integrated circuit
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This
product is not designed protection against radioactive rays
1/22
TSZ02201-0E3E0H300310-1-2
11.Mar.2013 Rev.001
BD2246G
●Block
Diagram
BD2247G
Datasheet
●Pin
Configurations
BD2246G
TOP VIEW
1
VIN
VOUT 5
1
BD2247G
TOP VIEW
VIN
VOUT 5
2 GND
3 EN
/OC 4
2 GND
3 /EN
/OC 4
●Pin
Descriptions
BD2246G
Pin No.
Symbol
1
2
3
4
5
BD2247G
Pin No.
1
2
3
4
5
VIN
GND
EN
/OC
VOUT
I/O
-
-
I
O
O
Function
Switch input and the supply voltage for the IC.
Ground.
Enable input.
High level input turns on the switch.
Over-current notification terminal.
Low level output during over-current or over-temperature condition.
Open-drain fault flag output.
Switch output.
Symbol
VIN
GND
/EN
/OC
VOUT
I/O
-
-
I
O
O
Function
Switch input and the supply voltage for the IC.
Ground.
Enable input.
Low level input turns on the switch.
Over-current notification terminal.
Low level output during over-current or over-temperature condition.
Open-drain fault flag output.
Switch output.
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TSZ22111・15・001
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TSZ02201-0E3E0H300310-1-2
11.Mar.2013 Rev.001
BD2246G
BD2247G
Datasheet
●Absolute
Maximum Ratings(Ta=25℃)
Parameter
Symbol
VIN supply voltage
EN(/EN) input voltage
/OC voltage
/OC sink current
VOUT voltage
Storage temperature
Power dissipation
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 6.0
-55 to 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℃
●Recommended
Operating Ratings
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.)
BD2246G
DC Characteristics
Parameter
Operating current
Standby current
EN input voltage
EN input leakage
On-resistance
Reverse leak current
Over-current threshold
Short circuit output current
Output discharge resistance
/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
Limits
Min.
-
-
-
-
10
11
Typ.
1
1.5
1
3
15
16
Max.
6
10
20
40
20
21
Unit
ms
ms
μs
μs
ms
Conditions
R
L
= 20Ω, V
IN
= 3.3V to 5V
R
L
= 20Ω, V
IN
= 3.3V to 5V
R
L
= 20Ω, V
IN
= 3.3V to 5V
R
L
= 20Ω, V
IN
= 3.3V to 5V
V
IN
= 5V
V
IN
= 3.3V
Symbol
I
DD
I
STB
V
ENH
V
ENL
I
EN
R
ON
I
REV
I
TH
I
SC
R
DISC
V
/OC
V
TUVH
V
TUVL
Limits
Min.
-
-
-
2.0
-
-
-1
-
-
-
630
600
350
30
50
-
2.1
2.0
Typ.
110
75
0.01
-
-
-
0.01
110
130
-
765
740
500
60
100
-
2.3
2.2
Max.
160
110
5
-
0.8
0.6
1
155
180
1
900
890
650
120
200
0.4
2.5
2.4
Unit
μA
μA
V
V
μA
mΩ
μA
mA
mA
Ω
V
V
V
Conditions
V
EN
= 5V, V
OUT
= open, V
IN
= 5V
V
EN
= 3.3V, V
OUT
= open, V
IN
= 3.3V
V
EN
= 0V, V
OUT
= open, V
IN
= 5V
High input, V
IN
= 3.3V to 5V
Low input, V
IN
= 5V
Low input, V
IN
= 3.3V
V
EN
= 0V or 5V
I
OUT
= 500mA, V
IN
= 5V
I
OUT
= 500mA, V
IN
= 3.3V
V
OUT
= 5V, V
IN
= 0V
V
IN
= 5V
V
IN
= 3.3V
V
OUT
= 0V,RMS, V
IN
= 3.3V to 5V
I
DISC
= 1mA, V
IN
= 5V
I
DISC
= 1mA, V
IN
= 3.3V
I
/OC
= 0.5mA, V
IN
= 3.3V to 5V
V
IN
increasing
V
IN
decreasing
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TSZ02201-0E3E0H300310-1-2
11.Mar.2013 Rev.001
BD2246G
BD2247G
Datasheet
●Electrical
Characteristics - continued
BD2247G
DC Characteristics
Parameter
Operating current
Standby current
/EN input voltage
/EN input leakage
On-resistance
Reverse leak current
Over-current threshold
Short circuit output current
Output discharge resistance
/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
Limits
Min.
-
-
-
-
10
11
Typ.
1
1.5
1
3
15
16
Max.
6
10
20
40
20
21
Unit
ms
ms
μs
μs
ms
Conditions
R
L
= 20Ω, V
IN
= 3.3V to 5V
R
L
= 20Ω, V
IN
= 3.3V to 5V
R
L
= 20Ω, V
IN
= 3.3V to 5V
R
L
= 20Ω, V
IN
= 3.3V to 5V
V
IN
= 5V
V
IN
= 3.3V
Symbol
I
DD
I
STB
V
/ENH
V
/ENL
I
/EN
R
ON
I
REV
I
TH
I
SC
R
DISC
V
/OC
V
TUVH
V
TUVL
Limits
Min.
-
-
-
2.0
-
-
-1
-
-
-
630
600
350
30
50
-
2.1
2.0
Typ.
110
75
0.01
-
-
-
0.01
110
130
-
765
740
500
60
100
-
2.3
2.2
Max.
160
110
5
-
0.8
0.6
1
155
180
1
900
890
650
120
200
0.4
2.5
2.4
Unit
μA
μA
V
V
μA
mΩ
μA
mA
mA
Ω
V
V
V
Conditions
V
/EN
= 0V, V
OUT
= open, V
IN
= 5V
V
/EN
= 0V, V
OUT
= open, V
IN
= 3.3V
V
/EN
= 5V, V
OUT
= open, V
IN
= 5V
High input, V
IN
= 3.3V to 5V
Low input, V
IN
= 5V
Low input, V
IN
= 3.3V
V
/EN
= 0V or 5V
I
OUT
= 500mA, V
IN
= 5V
I
OUT
= 500mA, V
IN
= 3.3V
V
OUT
= 5V, V
IN
= 0V
V
IN
= 5V
V
IN
= 3.3V
V
OUT
= 0V,RMS, V
IN
= 3.3V to 5V
I
DISC
= 1mA, V
IN
= 5V
I
DISC
= 1mA, V
IN
= 3.3V
I
/OC
= 0.5mA, V
IN
= 3.3V to 5V
V
IN
increasing
V
IN
decreasing
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
4/22
TSZ02201-0E3E0H300310-1-2
11.Mar.2013 Rev.001
BD2246G
BD2247G
Datasheet
●Measurement
Circuit
V
IN
V
IN
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
D.
/OC Output low voltage
Figure 1. Measurement circuit
●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
(BD2246G)
Figure 3. Output rise/fall time
(BD2247G)
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© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/22
TSZ02201-0E3E0H300310-1-2
11.Mar.2013 Rev.001
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