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PDF BD2041AFJ Data sheet ( Hoja de datos )
| Número de pieza | BD2041AFJ | |
| Descripción | 1.0A Current Limit High Side Switch ICs | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
1ch High Side Switch ICs
1.0A Current Limit High Side Switch ICs
BD2041AFJ BD2051AFJ
General Description
BD2041AFJ and BD2051AFJ are single channel high
side switch ICs with over-current protection for
Universal Serial Bus (USB) power supply line. These
ICs have low ON-Resistance N-Channel power
MOSFETs with low supply current, built-in over-current
protection circuit, thermal shutdown circuit, under
voltage lockout and soft-start circuit.
Key Specifications
Input Voltage Range:
2.7V to 5.5V
ON-Resistance:
80mΩ(Typ)
Continuous Current Load:
0.5A
Over-Current Threshold: 0.7A (Min), 1.6A (Max)
Standby Current:
0.01μA (Typ)
Output Rise Time:
1.2ms(Typ)
Operating Temperature Range: -40°C to +85°C
Features
Built-In Low ON-Resistance Nch MOSFET
( Typ=80mΩ )
Control Input Logic
Active-Low:
BD2041AFJ
Active-High:
BD2051AFJ
Soft-Start Circuit
Over-Current Protection
Thermal Shutdown
Under Voltage Lockout Function
Open Drain Error Flag Output
Reverse-Current Protection when Switch Off
Flag Output Delay
Package
W(Typ) D(Typ) H (Max)
SOP-J8
4.90mm x 6.00mm x 1.65mm
Applications
USB Hub in Consumer Appliances, PC, PC Peripheral
Equipment, and so forth
Typical Application Circuit
5V(Typ)
GND
OUT
IN OUT
C IN
IN OUT
EN( /EN ) /OC
+
CL -
VBUS
D+
D-
GND
Lineup
Over-Current Threshold
Min Typ Max
0.7A
1.0A
1.6A
0.7A
1.0A
1.6A
Control Input
Logic
Low
High
Package
Orderable Part Number
SOP-J8
SOP-J8
Reel of 2500 BD2041AFJ-E2
Reel of 2500 BD2051AFJ-E2
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001
○This product has not designed protection against radioactive rays
1/22
TSZ02201-0E3E0H300290-1-2
21.Aug.2014 Rev.002
1 page  
BD2041AFJ BD2051AFJ
Measurement Circuit
VIN
A
1uF
VEN(V/EN)
GND
OUT
IN OUT
IN OUT
EN(/EN) /OC
A. Operating Current
VIN
1uF
VEN(V/EN)
GND
OUT
IN OUT
IN OUT
EN(/EN) /OC
RL CL
B. EN, /EN Input Voltage, Output Rise / Fall Time
VIN VIN
VIN VIN
1uF
VEN(V/EN)
GND
OUT
IN OUT
IN OUT
EN(/EN) /OC
10k
IOUT
CL
1uF
VEN(V/EN)
GND
OUT
IN OUT
IN OUT
EN(/EN) /OC
I/OC
C. ON-Resistance, Over Current Detection
D. /OC Output Low Voltage
Figure 1. Measurement Circuit
Timing Diagram
VOUT
tON1
90%
10%
V/EN
tON2
V/ENL
tOFF1
90%
tOFF2
10%
V/ENH
Figure 2. Timing Diagram(BD2041AFJ)
VOUT
tON1
90%
10%
tON2
VEN
VENH
tOFF1
90%
tOFF2
10%
VENL
Figure 3. Timing Diagram (BD2051AFJ)
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
5/22
TSZ02201-0E3E0H300290-1-2
21.Aug.2014 Rev.002
5 Page 
BD2041AFJ BD2051AFJ
Typical Performance Curves – continued
5.0
Ta=25°C
4.0
3.0
2.0
1.0
0.0
2
345
Supply Voltage : VIN [V]
6
Figure 24. Output Turn OFF Time vs
Supply Voltage
2.5
2.4
VTUVH
2.3
VTUVL
2.2
2.1
2.0
-50
0 50
Ambient Temperature : Ta[°C]
100
Figure 26. UVLO Threshold Voltage vs
Ambient Temperature
5.0
VIN=5.0V
4.0
3.0
2.0
1.0
0.0
-50
0 50
Ambient Temperature : Ta[°C]
100
Figure 25. Output Turn OFF Time vs
Ambient Temperature
1.0
0.8
0.6
0.4
0.2
0.0
-50
0 50 100
Ambient Temperature : Ta[°C]
Figure 27. UVLO Hysteresis Voltage vs
Ambient Temperature
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
11/22
TSZ02201-0E3E0H300290-1-2
21.Aug.2014 Rev.002
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet BD2041AFJ.PDF ] | |
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