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부품번호 | BD2045AFJ 기능 |
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기능 | 0.5A Current Limit High Side Switch ICs | ||
제조업체 | ROHM Semiconductor | ||
로고 | |||
전체 26 페이지수
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
Input Voltage Range:
2.7V to 5.5V
ON-Resistance:
80mΩ(Typ)
Continuous Current Load:
0.25A
Over-Current Threshold: 0.3A (Min), 0.8A (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:
BD2045AFJ
Active-High:
BD2055AFJ
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
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
○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
TSZ02201-0E3E0H300130-1-2
21.Aug.2014 Rev.002
BD2045AFJ BD2055AFJ
Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply Voltage
VIN -0.3 to +6.0 V
Enable Voltage
VEN, V/EN
-0.3 to +6.0
V
/OC Voltage
V /OC
-0.3 to +6.0
V
/OC Current
I/OC 10 mA
OUT Voltage
V OUT
-0.3 to +6.0
V
Storage Temperature
Tstg
-55 to +150
°C
Power Dissipation
Pd
0.67 (Note 1)
W
(Note 1) Derating in done 5.4 mW/°C for operating above Ta≧25°C (Mount on 1-layer 70.0mm x 70.0mm x 1.6mm board)
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated
over the absolute maximum ratings.
Recommended Operating Conditions
Parameter
Symbol
Operating Voltage
Operating Temperature
Continuous Output Current
V IN
Topr
I LO
Rating
Min Typ Max
2.7 - 5.5
-40 - +85
0 - 250
Unit
V
°C
mA
Electrical Characteristics
BD2045AFJ (Unless otherwise specified, VIN = 5.0V, Ta = 25°C)
Parameter
Symbol
Min
Limit
Typ
Operating Current
IDD - 90
Standby Current
ISTB - 0.01
V /ENH
2.0
-
/EN Input Voltage
V /ENL
-
-
-
-
/EN Input Current
I/EN -1.0 +0.01
/OC Output Low Voltage
V /OC
-
-
/OC Output Leak Current
I L/OC
- 0.01
/OC Delay Time
t/OC - 2.5
ON-Resistance
RON - 80
Over-Current Threshold
ITH 0.3 0.5
Output Current at Short
ISC 0.3 0.5
Output Rise Time
Output Turn ON Time
Output Fall Time
Output Turn OFF Time
UVLO Threshold
t ON1
- 1.2
t ON2
- 1.5
t OFF1
-
1
t OFF2
-
3
VTUVH 2.1 2.3
VTUVL 2.0 2.2
Max
120
1
-
0.8
0.4
+1.0
0.5
1
8
100
0.8
0.7
10
20
20
40
2.5
2.4
Unit Conditions
μA V/EN = 0V, OUT = OPEN
μA V/EN = 5V, OUT = OPEN
V High Input
V Low Input
V Low Input 2.7V≤ VIN ≤4.5V
μA V/EN = 0V or V/EN = 5V
V I/OC = 5mA
μA V/OC = 5V
ms
mΩ IOUT = 250mA
A
A
VIN = 5V, VOUT = 0V,
CL = 100μF (RMS)
ms
ms
μs RL = 20Ω , CL = OPEN
μs
V Increasing VIN
V Decreasing VIN
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
3/22
TSZ02201-0E3E0H300130-1-2
21.Aug.2014 Rev.002
4페이지 BD2045AFJ BD2055AFJ
Typical Performance Curves
120
Ta=25°C
100
80
60
40
20
0
2 3 45 6
Supply Voltage : VIN[V]
Figure 4. Operating Current vs Supply Voltage
(EN, /EN Enable)
120
VIN=5.0V
100
80
60
40
20
0
-50 0 50 100
Ambient Temperature : Ta[°C]
Figure 5. Operating Current vs Ambient Temperature
( EN, /EN Enable)
1.0
Ta=25°C
0.8
0.6
0.4
0.2
0.0
2 34 56
Supply Voltage : VIN[V]
Figure 6. Standby Current vs Supply Voltage
(EN, /EN Disable)
1.0
VIN=5.0V
0.8
0.6
0.4
0.2
0.0
-50
0 50 100
Ambient Temperature : Ta[°C]
Figure 7. Standby Current vs Ambient Temperature
(EN, /EN Disable)
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
6/22
TSZ02201-0E3E0H300130-1-2
21.Aug.2014 Rev.002
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부품번호 | 상세설명 및 기능 | 제조사 |
BD2045AFJ | 0.5A Current Limit High Side Switch ICs | ROHM Semiconductor |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |