Power Management Switch IC Series or PCs and Digital Consumer Product
1ch Large Current Output
USB High Side Switch ICs
BD2041AFJ,BD2051AFJ,BD6518FJ,BD6519FJ
No.09029EAT03
Description
Single channel high side switch IC for USB port is a high side switch having over current protection used in power supply line
of universal serial bus (USB).
N-channel power MOSFET of low on resistance and low supply current are realized in this IC.
And, over current detection circuit, thermal shutdown circuit, under voltage lockout and soft start circuit are built in.
Features
1) Built-in low on resistance Nch MOS FET Switch.
Typ = 80mΩ (BD2041AF/BD2051AFJ)
Typ = 100mΩ (BD6518F/BD6519FJ)
2) Continuous current load 0.5A
3) Control input logic
Active-Low : BD2041AFJ/ BD6519FJ
Active-High : BD2051AFJ/ BD6518FJ
4) Soft start circuit
5) Over current detection
6) Thermal shutdown
7) Under voltage lockout
8) Open drain error flag output
9) Reverse-current protection when power switch off
10) Power supply voltage range
2.7V~5.5V (BD2041AF/BD2051AFJ)
3.0V~5.5V (BD6518F/BD6519FJ)
11) Operating temperature range -40°C~85°C
Applications
USB hub in consumer appliances, Car accessory, PC, PC peripheral equipment, and so forth
Lineup
Parameter
Continuous current load (A)
Output current at short (A)
Control input logic
Absolute
Maximum Ratings
Parameter
Supply voltage
Enable voltage
/OC voltage
/OC current
OUT voltage
Storage temperature
Power dissipation
BD2041AFJ
0.5
1.0
Low
BD2051AFJ
0.5
1.0
High
BD6518FJ
0.5
1.1
High
BD6519FJ
0.5
1.1
Low
Symbol
V
IN
V
EN
, V
/EN
V
/OC
IS
/OC
V
OUT
T
STG
PD
Limits
-0.3 to 6.0
-0.3 to 6.0
-0.3 to 6.0
10
-0.3 to 6.0
-55 to 150
560
*1
Unit
V
V
V
mA
V
°C
mW
*1 In the case of exceeding Ta = 25°C, 4.48mW should be reduced per 1°C.
* This chip is not designed to protect itself against radioactive rays.
※
IN, EN (/EN), and /OC terminal of BD2041AFJ/BD2051AFJ correspond to VDD, CTRL, and FLAG terminal of BD6518FJ/BD6519FJ, respectively.
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© 2009 ROHM Co., Ltd. All rights reserved.
1/18
2009.05 - Rev.A
BD2041AFJ,BD2051AFJ,BD6518FJ,BD6519FJ
Operating
conditions
◎BD2041AF/BD2051AFJ
Parameter
Operating voltage
Operating temperature
Continuous output current
◎BD6518FJ/BD6519FJ
Parameter
Operating voltage
Operating temperature
Continuous output current
Technical Note
Symbol
V
IN
T
OPR
I
LO
Limits
2.7 to 5.5
-40 to 85
0 to 500
Unit
V
°C
mA
Symbol
V
IN
T
OPR
I
LO
Limits
3.0 to 5.5
-40 to 85
0 to 500
Unit
V
°C
mA
Electrical
characteristics
◎BD2041AFJ
(Unless otherwise specified, V
IN
= 5.0V, Ta = 25°C)
Limits
Parameter
Symbol
Min.
Typ.
Max.
Operating Current
I
DD
-
90
120
Standby Current
I
STB
-
0.01
1
V
/EN
2.0
-
-
-
-
0.8
/EN input voltage
V
/EN
-
-
0.4
/EN input current
I
/EN
-1.0
0.01
1.0
/OC output LOW voltage
V
/OC
-
-
0.5
/OC output leak current
IL
/OC
-
0.01
1
ON resistance
R
ON
-
80
100
Output current at short
Output rise time
Output turn on time
Output fall time
Output turn off time
UVLO threshold
◎BD6519FJ
I
SC
T
ON1
T
ON2
T
OFF1
T
OFF2
V
TUVH
V
TUVL
0.7
-
-
-
-
2.1
2.0
1.0
1.2
1.5
1
3
2.3
2.2
1.3
10
20
20
40
2.5
2.4
Unit
μA
μA
V
V
V
μA
V
μA
mΩ
A
ms
ms
μs
μs
V
V
Condition
V
/EN
= 0V, OUT = OPEN
V
/EN
= 5V, OUT = OPEN
High input
Low input
Low input 2.7V≤ V
IN
≤4.5V
V
/EN
= 0V or V
/EN
= 5V
I
/OC
= 5mA
V
/OC
= 5V
I
OUT
= 500mA
V
IN
= 5V, V
OUT
= 0V,
C
L
= 100μF (RMS)
R
L
= 10Ω , C
L
= OPEN
Increasing V
IN
Decreasing V
IN
(Unless otherwise specified, V
DD
= 5.0V, Ta = 25°C)
Limits
Parameter
Symbol
Min.
Typ.
Max.
-
90
140
Operating Current
I
DD
Standby Current
-
0.01
2
2.5
-
-
CTRL input voltage
V
CTRL
-
-
0.7
CTRL input voltage
I
CTRL
-1.0
0.01
1.0
FLAG output resistance
R
FLAG
-
180
450
FLAG output leak current
IL
FLAG
-
0.01
1
FLAG output delay
TD
FLAG
-
2.5
8
-
100
140
ON resistance
R
ON
-
140
180
Short circuit output current
I
SC
0.6
-
1.6
Output leak current
I
LEAK
-
-
10
Output rise time
T
ON1
-
1
4
Output turn on delay time
T
ON2
-
1.3
6
Output fall time
T
OFF1
-
1
20
Output turn off delay time
T
OFF2
-
3
20
Thermal shutdown threshold
T
TS
-
135
-
V
TUVH
2.3
2.5
2.7
UVLO threshold
V
TUVL
2.1
2.3
2.5
Unit
μA
μA
V
V
μA
Ω
μA
ms
mΩ
mΩ
A
μA
ms
ms
μs
μs
°C
V
V
Condition
V
CTRL
= 0V, OUT = OPEN
V
CTRL
= 5V, OUT = OPEN
High input
Low input
V
CTRL
= 0V or V
CTRL
= 5V
I
FLAG
= 1mA
V
FLAG
= 5V
V
DD
= 5V, I
OUT
= 500mA
V
DD
= 3.3V, I
OUT
= 500mA
V
DD
= 5V , V
OUT
= 0V
V
CTRL
= 5V
R
L
= 10Ω , C
L
= OPEN
Tj increase
V
DD
increasing
V
DD
decreasing
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© 2009 ROHM Co., Ltd. All rights reserved.
2/18
2009.05 - Rev.A
BD2041AFJ,BD2051AFJ,BD6518FJ,BD6519FJ
◎BD2051AFJ
(Unless otherwise specified, V
IN
= 5.0V, Ta = 25°C)
Limits
Parameter
Symbol
Min.
Typ.
Max.
Operating Current
I
DD
-
90
120
Standby Current
I
STB
-
0.01
1
V
EN
2.0
-
-
EN input voltage
-
-
0.8
V
EN
-
-
0.4
EN input current
I
EN
-1.0
0.01
1.0
/OC output LOW voltage
V
/OC
-
-
0.5
/OC output leak current
IL
/OC
-
0.01
1
ON resistance
R
ON
-
80
100
Output current at short
Output rise time
Output turn on time
Output fall time
Output turn off time
UVLO threshold
◎BD6518FJ
I
SC
T
ON1
T
ON2
T
OFF1
T
OFF2
V
TUVH
V
TUVL
0.7
-
-
-
-
2.1
2.0
1.0
1.2
1.5
1
3
2.3
2.2
1.3
10
20
20
40
2.5
2.4
Technical Note
Unit
μA
μA
V
V
V
μA
V
μA
mΩ
A
ms
ms
μs
μs
V
V
Condition
V
EN
= 5V, OUT = OPEN
V
EN
= 0V, OUT = OPEN
High input
Low input
Low input 2.7V≤ V
IN
≤4.5V
V
EN
= 0V or V
EN
= 5V
I
/OC
= 5mA
V
/OC
= 5V
I
OUT
= 500mA
V
IN
= 5V, V
OUT
= 0V,
C
L
= 100μF (RMS)
R
L
= 10Ω , C
L
= OPEN
Increasing V
IN
Decreasing V
IN
(Unless otherwise specified, V
DD
= 5.0V, Ta = 25°C)
Limits
Parameter
Symbol
Min.
Typ.
Operating Current
-
90
I
DD
Standby Current
-
0.01
2.5
-
CTRL input voltage
V
CTRL
-
-
CTRL input voltage
I
CTRL
-1.0
0.01
FLAG output resistance
R
FLAG
-
180
FLAG output leak current
IL
FLAG
-
0.01
FLAG output delay
TD
FLAG
-
2.5
-
100
ON resistance
R
ON
-
140
Short circuit output current
I
SC
0.6
-
Output leak current
I
LEAK
-
-
Output rise time
T
ON1
-
1
Output turn on delay time
T
ON2
-
1.3
Output fall time
T
OFF1
-
1
Output turn off delay time
T
OFF2
-
3
Thermal shutdown threshold
T
TS
-
135
V
TUVH
2.3
2.5
UVLO threshold
V
TUVL
2.1
2.3
Max.
140
2
-
0.7
1.0
450
1
8
140
180
1.6
10
4
6
20
20
-
2.7
2.5
Unit
μA
μA
V
V
μA
Ω
μA
ms
mΩ
mΩ
A
μA
ms
ms
μs
μs
°C
V
V
Condition
V
CTRL
= 5V, OUT = OPEN
V
CTRL
= 0V, OUT = OPEN
High input
Low input
V
CTRL
= 0V or V
CTRL
= 5V
I
FLAG
= 1mA
V
FLAG
= 5V
V
DD
= 5V, I
OUT
= 500mA
V
DD
= 3.3V, I
OUT
= 500mA
V
DD
= 5V , V
OUT
= 0V
V
CTRL
= 0V
R
L
= 10Ω , C
L
= OPEN
Tj increase
V
DD
increasing
V
DD
decreasing
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© 2009 ROHM Co., Ltd. All rights reserved.
3/18
2009.05 - Rev.A
BD2041AFJ,BD2051AFJ,BD6518FJ,BD6519FJ
Measurement circuit
V
IN
A
1uF
GND
IN
IN
EN(/EN)
V
EN
(V
/EN
)
OUT
OUT
OUT
/OC
Technical Note
V
IN
1uF
GND
IN
IN
EN(/EN)
V
EN
(V
/EN
)
OUT
OUT
OUT
/OC
R
L
C
L
Operating current
EN, /EN input voltage, Output rise, fall time
V
IN
V
IN
10k
GND
IN
IN
EN(/EN)
OUT
OUT
OUT
/OC
I
OUT
C
L
V
IN
V
IN
1uF
1uF
GND
IN
IN
EN(/EN)
V
EN
(V
/EN
)
OUT
OUT
OUT
/OC
I
/OC
V
EN
(V
/EN
)
ON resistance, Over current detection
Fig.1 Measurement circuit
/OC output LOW voltage
Timing
diagram
◎BD2041AFJ/BD6519FJ
T
OFF1
T
ON1
V
OUT
10%
90%
90%
10%
T
OFF2
T
ON2
V
/EN
50%
Fig.2 Timing diagram
50%
V
EN
50%
Fig.3 Timing diagram
50%
T
ON2
V
OUT
10%
T
ON1
90%
90%
10%
T
OFF2
◎BD2051AFJ/BD6518FJ
T
OFF1
※IN,
EN (/EN), and /OC terminal of BD2041AFJ/BD2051AFJ correspond to VDD, CTRL, and FLAG terminal of BD6518FJ/BD6519FJ, respectively.
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© 2009 ROHM Co., Ltd. All rights reserved.
4/18
2009.05 - Rev.A
BD2041AFJ,BD2051AFJ,BD6518FJ,BD6519FJ
Reference
data (BD2041AFJ/BD2051AFJ)
120
Ta=25°C
OPERATING CURRENT :
I
DD
[μA]
100
80
60
40
20
0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
100
OPERATING CURRENT :
I
DD
[μA]
80
60
40
20
0
-50
120
Technical Note
1.0
V
IN
=5.0V
Ta=25°C
OPERATING CURRENT :
I
STB
[μA]
0.8
0.6
0.4
0.2
0.0
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
Fig.4 Operating current
EN,/EN Enable
Fig.5 Operating current
EN,/EN Enable
Fig.6 Operating current
EN,/EN Disable
1.0
V
IN
=5.0V
OPERATING CURRENT :
I
STB
[μA]
0.8
ENABLE INPUT VOLTAGE :
V
EN,
V
/EN
[V]
0
2.0
2.0
ENABLE INPUT VOLTAGE :
V
EN
, V
/EN
[V]
Ta=25°C
1.5
V
IN
=5.0V
1.5
Low to High
High to Low
0.6
0.4
Low to High
1.0
High to Low
1.0
0.2
0.5
0.5
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
0.0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
0.0
-50
0
50
AMBIENT TEMPERATURE : Ta[
℃
]
100
Fig.7 Operating current
EN,/EN Disable
0.5
/OC OUTPUT LOW VOLTAGE :
V
/OC
[V]
/OC OUTPUT LOW VOLTAGE :
V
/OC
[V]
0.5
Fig.8 EN,/EN input voltage
Fig.9 EN,/EN input voltage
200
V
IN
=5.0V
Ta=25°C
0.4
Ta=25°C
150
0.4
0.3
0.3
0.2
ON RESISTANCE :
R
ON[
mΩ]
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
100
0.2
0.1
0.1
0.0
50
0.0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
0
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
Fig.10 /OC output LOW voltage
Fig.11 /OC output LOW voltage
Fig.12 ON resistance
200
2.0
2.0
SHORT CIRCUIT CURRENT :
I
SC
[A]
V
IN
=5.0V
SHORT CIRCUIT CURRENT :
I
SC
[A]
ON RESISTANCE :
R
ON
[mΩ]
150
1.5
Ta=25°C
V
IN
=5.0V
1.5
100
1.0
1.0
50
0.5
0.5
0
-50
0.0
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
2
3
4
5
SUPPLY VOLTAGE : V
IN
[V]
6
0.0
-50
0
50
100
AMBIENT TEMPERATURE : Ta[
℃
]
Fig.13 ON resistance
Fig.14 Output current at shortcircuit
(BD2041AFJ/51AFJ)
Fig.15 Output current at shortcircuit
(BD2041AFJ/51AFJ)
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© 2009 ROHM Co., Ltd. All rights reserved.
5/18
2009.05 - Rev.A
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