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PDF BD2242G Data sheet ( Hoja de datos )
| Número de pieza | BD2242G | |
| Descripción | 1ch Adjustable Current Limit High Side Switch ICs | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
1 Channel Compact High Side Switch ICs
1ch Adjustable Current Limit
High Side Switch ICs
BD2222G BD2242G BD2243G
Description
BD2222G, BD2242G and BD2243G are low
on-resistance N-channel MOSFET high-side power
switches, optimized for Universal Serial Bus (USB)
applications. These devices are equipped with the
function of over-current detection, thermal shutdown,
under-voltage lockout and soft-start. Moreover, the
range of Current limit threshold can be adjusted from
0.2A to 1.7A by changing the external resistance.
Features
Adjustable Current Limit Threshold: 200mA to 1.7A
Low On-Resistance (Typ 89mΩ) N-channel
MOSFET Built-in
Soft-Start Circuit
Output Discharge Function
BD2242G, BD2243G
Open-Drain Fault Flag Output
Thermal Shutdown
Under-Voltage Lockout
Reverse Current Protection when Power Switch Off
Control Input Logic Active-High
Active-High: BD2222G, BD2242G
Active-Low: BD2243G
Key Specifications
Input Voltage Range:
2.8V to 5.5V
On Resistance: (IN=5V)
89mΩ(Typ)
Current Limit Threshold: 0.2A to 1.7A adjustable
Standby Current:
0.01µA (Typ)
Operating Temperature Range: -40°C to +85°C
Package
SSOP6
W(Typ) D(Typ) H (Max)
2.90mm x 2.80mm x 1.25mm
SSOP6
Applications
USB hub in consumer appliances, PC,
PC peripheral equipment and so forth
Typical Application Circuit
5V (Typ)
3.3V
10kΩ to
100kΩ
10µF
CIN IN
1µF
GND
EN
OUT
ILIM
/OC
+
RLIM -
CL
120µF
Lineup
Output Load
Current
Max
1.5A
1.5A
1.5A
Adjustable
Current Limit
Threshold
200mA to 1.7A
200mA to 1.7A
200mA to 1.7A
Figure 1. Typical Application Circuit
Channel
Control input
logic
1ch High
1ch High
1ch Low
Output
Discharge
function
No
Yes
Yes
Package
Orderable Part
Number
SSOP6
SSOP6
SSOP6
Reel of 3000
Reel of 3000
Reel of 3000
BD2222G – GTR
BD2242G – GTR
BD2243G – GTR
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/26
TSZ02201-0E3E0H300280-1-2
9.JUN.2014 Rev.004
1 page  
BD2222G BD2242G BD2243G
Timing Diagram
VEN
VENH
tON2
VOUT
90%
10%
tON1
VENL
tOFF2
90%
10%
tOFF1
Figure 6. Output Rise/Fall Time
(BD2222G, BD2242G)
Datasheet
VEN
VENL
tON2
VOUT
90%
10%
tON1
VENH
tOFF2
90%
10%
tOFF1
Figure 7. Output Rise/Fall Time
(BD2243G)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/26
TSZ02201-0E3E0H300280-1-2
9.JUN.2014 Rev.004
5 Page 
BD2222G BD2242G BD2243G
Typical Performance Curves - continued
Datasheet
3.0
Ta=25°C
RLIM=20kΩ
2.5 RL=100Ω
2.0
1.5
1.0
0.5
0.0
2
345
Supply Voltage : VIN[V]
Figure 28. Output Turn-On Time vs
Supply Voltage
6
5.0
Ta=25°C
RLIM=20kΩ
RL=100Ω
4.0
3.0
2.0
1.0
0.0
2
345
Supply Voltage : VIN[V]
Figure 30. Output Fall Time vs
Supply Voltage
6
3.0
VIN=5.0V
RLIM=20kΩ
2.5 RL=100Ω
2.0
1.5
1.0
0.5
0.0
-50
0 50
Ambient Temperature : Ta[°C]
Figure 29. Output Turn-On Time vs
Ambient Temperature
100
5.0
VIN=5.0V
RLIM=20kΩ
RL=100Ω
4.0
3.0
2.0
1.0
0.0
-50
0 50
Ambient Temperature : Ta[°C]
Figure 31. Output Fall Time vs
Ambient Temperature
100
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/26
TSZ02201-0E3E0H300280-1-2
9.JUN.2014 Rev.004
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet BD2242G.PDF ] | |
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