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PDF BD2270HFV-LB Data sheet ( Hoja de datos )
| Número de pieza | BD2270HFV-LB | |
| Descripción | Controller ICs | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Datasheet
Controller ICs
for High Side NMOSFET
BD2270HFV-LB
General Description
This is the product guarantees long time support in
Industrial market.
BD2270HFV is an IC with a built-in external N-channel
MOSFET driver circuit. This IC has a built-in charge
pump circuit for gate drive and output discharge circuit,
enabling configuration of a high side load switch for
N-channel MOSFET drive without using any external
parts.
In addition, the control input terminal has a built-in
comparator with hysteresis function, facilitating control
of the power up sequence. The space saving type of
HVSOF5 package is used.
Features
■ Long time support a product for Industrial
applications.
■ Built-in charge pump
■ Built-in discharge circuit for output charge
■ Soft start circuit
■ Built-in comparator with hysteresis function at
control input terminal
■ Possible to drive N-channel power MOSFET
Applications
Industrial Equipment, PCs, PC peripheral devices,
digital consumer electronics, etc.
Key Specifications
Input voltage range:
GATE rise time (CGATE=500pF) :
GATE output voltage(VCC=5V):
Operating current:
Standby current:
Operating temperature range:
2.7V to 5.5V
130μs (Typ.)
13.5V(Typ.)
50μA(Typ.)
5μA (Typ.)
-25℃ to +85℃
Package
HVSOF5
W(Typ.) D(Typ.) H (Max.)
1.60mm x 1.60mm x 0.60mm
HVSOF5
Typical Application Circuit
3.3V
VIN_SWITCH
VOUT_SWITCH
3.3V
Load
VCC GATE DISC
ON/OFF
AEN GND
BD2270HFV
Lineup
GATE output voltage(VCC=5V)
Min. Typ. Max.
10V 13.5V 15V
Package
Orderable Part Number
HVSOF5 Reel of 3000 BD2270HFV – LBTR
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
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○This product has no designed protection against radioactive rays
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1 page  
BD2270HFV-LB
Typical Performance Curves - continued
Datasheet
3.0
Ta=25°C
2.5
Low to High
2.0
High to Low
1.5
1.0
0.5
0.0
2
345
SUPPLY VOLTAGE : VCC[V]
Figure 5. AEN Input Voltage
6
3.0
VCC=3.0V
2.5
Low to High
2.0
High to Low
1.5
1.0
0.5
0.0
-50 0
50 100
AMBIENT TEMPERATURE : Ta[℃]
Figure 6. AEN Input Voltage
10.0
Ta=25°C
8.0
6.0
4.0
2.0
0.0
2
34 5
SUPPLY VOLTAGE : VCC[V]
Figure 7. AEN Input Current
6
10.0
VCC=3.0V
8.0
6.0
4.0
2.0
0.0
-50 0
50 100
AMBIENT TEMPERATURE : Ta[℃]
Figure 8. AEN Input Current
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
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5 Page 
BD2270HFV-LB
Application Circuit
1. Configuration of 3.3V load switch
3.3V
VIN_SWITCH
VOUT_SWITCH
3.3V
Load
Datasheet
VCC GATE DISC
ON/OFF
AEN
GND
BD2270HFV
Figure 30. Configuration of 3.3V Load Switch
2. Configuration of 5V load switch
5V 5V
Load
VCC GATE DISC
ON/OFF
AEN
GND
BD2270HFV
Figure 31. Configuration of 5V Load Switch
A 5V load switch can be configured like the 3.3V load switch. However, if the external N-channel MOSFET has low
VGSS, clamp it with Zener diode and the like.
3. Configuration of low-voltage load switch
1.2V
3.3V
1.2V
Load
VCC GATE DISC
AEN GND
ON/OFF
BD2270HFV
Figure 32. Configuration of Low-voltage Load Switch
Providing BD2270HFV drive power supply enables configuration of a low-voltage load switch.
4. Soft start configuration
3.3V
3.3V
Load
VCC GATE DISC
ON/OFF
AEN GND
BD2270HFV
Figure 33. Soft Start Configuration
Connecting an external capacitor to the GATE terminal of the BD2270HFV makes it possible to lengthen the rise time
of the N-channel MOSFET, thus achieving reduction of the inrush current to the large-capacity capacitor mounted on
the load side.
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
11/18
TSZ02201-0E3E0H300410-1-2
21.Feb.2014 Rev.002
11 Page | ||
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| PDF Descargar | [ Datasheet BD2270HFV-LB.PDF ] | |
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