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PDF BD2245G-M Data sheet ( Hoja de datos )

Número de pieza BD2245G-M
Descripción 1ch Adjustable Current Limit High Side Switch ICs
Fabricantes ROHM Semiconductor 
Logotipo ROHM Semiconductor Logotipo



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Datasheet
1 Channel Compact High Side Switch ICs
1ch Adjustable Current Limit
High Side Switch ICs
BD2244G-M BD2245G-M
General Description
BD2244G-M and BD2245G-M are low on-resistance
N-channel MOSFET high-side power switches,
optimized for Universal Serial Bus (USB) applications.
BD2244G-M and BD2245G-M 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
AEC-Q100 Qualified
Adjustable Current Limit Threshold: 200mA to 1.7A
Built-in Low On-Resistance (Typ 100mΩ) N-channel
MOSFET Built-in
Soft-Start Circuit
Output Discharge Function
Open-Drain Fault Flag Output
Thermal Shutdown
Under-Voltage Lockout
Reverse Current Protection when Power Switch Off
Control Input Logic
Active-High: BD2244G-M
Active-Low: BD2245G-M
Key Specifications
Input Voltage Range:
2.8V to 5.5V
On Resistance: (IN=5V)
100mΩ(Typ)
Current Limit Threshold: 0.2A to 1.7A adjustable
Standby Current:
0.01μA (Typ)
Operating Temperature Range: -40°C to +85°C
Package
W(Typ) x D(Typ) x H(Max)
SSOP6
2.90mm x 2.80mm x 1.25mm
Applications
Car accessory
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
Adjustable
Current Limit
Threshold
200mA to 1.7A
200mA to 1.7A
Figure 1. Typical Application Circuit
Channel
1ch
1ch
Control input
logic
High
Low
Package
Orderable Part Number
SSOP6
SSOP6
Reel of 3000 BD2244G MGTR
Reel of 3000 BD2245G MGTR
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product has no designed protection against radioactive rays
1/25
TSZ02201-0R5R0H300140-1-2
25. Aug.2014 Rev.001

1 page




BD2245G-M pdf
BD2244G-M BD2245G-M
Typical Performance Curves
160
Ta=25°C
RLIM=20kΩ
120
160
VIN=5.0V
RLIM=20kΩ
120
80 80
40 40
0
23456
Supply Voltage : VIN[V]
Figure 7. Operating Current vs Supply Voltage
(EN Enable)
1.0
Ta=25°C
RLIM=20kΩ
0.8
0.6
0.4
0.2
0.0
2
345
Supply Voltage : VIN[V]
6
Figure 9. Standby Current vs Supply Voltage
(EN Disable)
0
-50 0 50 100
Ambient Temperature : Ta[°C]
Figure 8. Operating Current vs Ambient Temperature
(EN Enable)
1.0
VIN=5.0V
RLIM=20kΩ
0.8
0.6
0.4
0.2
0.0
-50
0 50
Ambient Temperature : Ta[°C]
100
Figure 10. Standby Current vs Ambient Temperature
(EN Disable)
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
5/25
TSZ02201-0R5R0H300140-1-2
25. Aug.2014 Rev.001

5 Page





BD2245G-M arduino
BD2244G-M BD2245G-M
Typical Performance Curves - continued
6.0
Ta=25°C
RLIM=20kΩ
5.0 RL=100Ω
4.0
3.0
2.0
1.0
0.0
2
345
Supply Voltage : VIN[V]
Figure 31. Output Turn-Off Time vs
Supply Voltage
10
Ta=25°C
RLIM=20kΩ
8
6
6
4
2
0
2
3 45
Supply Voltage : VIN[V]
Figure 33. /OC Delay Time vs
Supply Voltage
6
6.0
VIN=5.0V
RLIM=20kΩ
5.0 RL=100Ω
4.0
3.0
2.0
1.0
0.0
-50
0 50
Ambient Temperature : Ta[°C]
Figure 32. Output Turn-Off Time vs
Ambient Temperature
100
10
VIN=5.0V
RLIM=20kΩ
8
6
4
2
0
-50
0 50
Ambient Temperature : Ta[°C]
Figure 34. /OC Delay Time vs
Ambient Temperature
100
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
11/25
TSZ02201-0R5R0H300140-1-2
25. Aug.2014 Rev.001

11 Page







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