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BD2045AFJ_14 Datasheet, PDF (1/26 Pages) Rohm – 0.5A Current Limit High Side Switch ICs | |||
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Datasheet
1ch High Side Switch ICs
0.5A Current Limit High Side Switch ICs
BD2045AFJ BD2055AFJ
General Description
BD2045AFJ and BD2055AFJ 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
ï® Input Voltage Range:
2.7V to 5.5V
ï® ON-Resistance:
80mΩ(Typ)
ï® Continuous Current Load:
0.25A
ï® Over-Current Threshold: 0.3A (Min), 0.8A (Max)
ï® Standby Current:
0.01μA (Typ)
ï® Output Rise Time:
1.2ms(Typ)
ï® Operating Temperature Range: -40°C to +85°C
Features
ï® Built-In Low ON-Resistance Nch MOSFET
( Typ=80mΩ )
ï® Control Input Logic
ï Active-Low:
BD2045AFJ
ï Active-High:
BD2055AFJ
ï® Soft-Start Circuit
ï® Over-Current Protection
ï® Thermal Shutdown
ï® Under Voltage Lockout Function
ï® Open Drain Error Flag Output
ï® Reverse-Current Protection when Switch Off
ï® Flag Output Delay
Applications
USB Hub in Consumer Appliances, PC, PC Peripheral
Equipment, and so forth
Package
W(Typ) D(Typ) H (Max)
SOP-J8
4.90mm x 6.00mm x 1.65mm
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
0.3A
0.5A
0.8A
0.3A
0.5A
0.8A
Control Input
Logic
Low
High
Package
Orderable Part Number
SOP-J8
SOP-J8
Reel of 2500 BD2045AFJ-E2
Reel of 2500 BD2055AFJ-E2
âProduct structureï¼Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
âThis product has not designed protection against radioactive rays
1/22
TSZ02201-0E3E0H300130-1-2
21.Aug.2014 Rev.002
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