Datasheet
1 Channel High Side Switch ICs
1.0A Current Limit High Side Switch ICs
BD82038FVJ
Description
BD82038FVJ is a Single Channel High Side Switch IC
employing N-channel power MOSFET with low on
resistance and low supply current for the power supply
line of universal serial bus (USB).
This IC has a built-in over current detection circuit,
thermal shutdown circuit, under voltage lockout and
soft start circuits.
Key Specifications
Input Voltage Range:
ON Resistance: (V
IN
=5V)
Over Current Threshold:
Standby Current:
Operating Temperature Range:
2.7V to 5.5V
72mΩ(Typ)
1.0A
0.01μA (Typ)
-40°C to +85°C
Package
Features
Over-Current Protection : 1.0A
Control Input Logic : Active-High
Output Discharge Function
Reverse Current Protection when Power Switch Off
Thermal Shutdown
Open-Drain Fault Flag Output
Under-Voltage Lockout
OCP Fast Response
Soft-Start Circuit
ESD Protection
UL : File No.E243261
IEC 60950-1 CB_scheme: File No.US-23061-UL
TSSOP-B8J
W(Typ) D(Typ) H(Max)
3.00mm x 4.90mm x 1.10mm
TSSOP-B8J
( MSOP8 Jedec )
Applications
USB hub in consumer appliances, PC
PC peripheral equipment, and so forth
Typical Application Circuit
5V(Typ)
5V(typ.)
3.3V
V
OUT
GND
10kΩ to
10kΩ~
100kΩ
100kΩ
OUT
OUT
OUT
C
L
+
-
C
I N
IN
IN
EN(/EN) /OC
Figure 1. Typical Application Circuit
○Product
structure：Silicon monolithic integrated circuit
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○This
product has no designed protection against radioactive rays
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BD82038FVJ
Block Diagram
Datasheet
GND
OUT
IN
UVLO
Charge
Pump
OCD
OUT
IN
Gate
Logic
OUT
EN(/EN)
TSD
/OC
Figure 2. Block Diagram
Pin Configuration
GND
IN
IN
EN(/EN)
1
2
3
4
8
7
6
5
OUT
OUT
OUT
/OC
Top View
Figure 3. Pin Configuration (TOP VIEW)
Pin Descriptions
Pin No.
1
Symbol
GND
I/O
-
Ground
Power supply input
Input terminal to the power switch and power supply input terminal of the internal circuit
Short these pins externally
Enable input
Active high power on switch
High level input > 2.0V, Low level input < 0.8V
Error flag output
Low when over-current or thermal shutdown is activated
Open drain output
Power switch output
Short these pins externally
Function
2, 3
IN
I
4
EN, /EN
I
5
/OC
O
6, 7, 8
OUT
O
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BD82038FVJ
Absolute Maximum Ratings(Ta=25°C)
Parameter
IN Supply Voltage
EN Input Voltage
/OC Voltage
/OC Sink Current
OUT Voltage
Storage Temperature
Power Dissipation
Symbol
V
IN
V
EN
V
/OC
I
/OC
V
OUT
Tstg
Pd
Rating
-0.3 to +6.0
-0.3 to +6.0
-0.3 to +6.0
5
-0.3 to +6.0
-55 to +150
0.58
(Note 1)
Datasheet
Unit
V
V
V
mA
V
°C
W
(Note 1) Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 4.7mW per 1°C above 25°C
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 Ratings
Parameter
IN Operating Voltage
Operating Temperature
Symbol
V
IN
Topr
Rating
Min
2.7
-40
Typ
5.0
-
Max
5.5
+85
Unit
V
°C
Electrical Characteristics (V
IN
= 5V, Ta= 25°C, unless otherwise specified.)
DC Characteristics
Parameter
Operating Current
Standby Current
EN Input Voltage
EN Input Leakage
On Resistance
Reverse Leak Current
Over-Current Threshold
Short Circuit Output Current
Output Discharge Resistance
/OC Output Low Voltage
/OC Output Leak Current
UVLO Threshold
Symbol
I
DD
I
STB
V
ENH
V
ENL
I
EN
R
ON
I
REV
I
TH
I
SC
R
DISC
V
/OC
IL
/OC
V
TUVH
V
TUVL
Limit
Min
-
-
2.0
-
-1
-
-
0.60
0.30
-
-
-
2.1
2.0
Typ
110
0.01
-
-
0.01
72
-
1.00
0.60
55
-
0.01
2.3
2.2
Max
150
5
-
0.8
+1
90
1
1.20
0.90
100
0.4
1
2.5
2.4
Unit
μA
μA
V
V
μA
mΩ
μA
A
A
Ω
V
μA
V
V
Conditions
V
EN
= 5V, V
OUT
= open
V
EN
= 0V, V
OUT
= open
High input
Low input
V
EN
= 0V or 5V
I
OUT
= 0.5A
V
OUT
= 5.5V, V
IN
= 0V
Current Load Slew rate
100A/s
V
OUT
=0V, C
L
=100μF
RMS
I
OUT
= 1mA, V
EN
= 0V
I
/OC
= 1mA
V
/OC
= 5V
V
IN
increasing
V
IN
decreasing
AC Characteristics
Parameter
Output Rise Time
Output Turn-on Time
Output Fall Time
Output Turn-off Time
/OC Delay Time
Symbol
t
ON1
t
ON2
t
OFF1
t
OFF2
t
/OC
Limit
Min
-
-
-
-
4
Typ
0.3
0.5
2
4
7
Max
10
20
10
20
15
Unit
ms
ms
μs
μs
ms
R
L
=10Ω
Conditions
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BD82038FVJ
Measurement Circuit
V
IN
A
1µF
GND
IN
IN
EN(/EN)
V
EN
(V
/EN
)
OUT
OUT
OUT
/OC
V
EN
(V
/EN
)
1µF
GND
IN
IN
EN(/EN)
OUT
OUT
OUT
/OC
A
V
IN
Datasheet
V
IN
10kΩ
R
L
Operating Current
EN, Input Voltage, Output Rise/Fall Time
V
IN
A
※
10µF
V
IN
10kΩ
1µF
A
V
IN
I
/OC
1µF
GND
IN
IN
EN(/EN)
V
EN
(V
/EN
)
OUT
OUT
OUT
/OC
C
L
I
OUT
GND
IN
IN
EN(/EN)
V
EN
(V
/EN
)
OUT
OUT
OUT
/OC
On Resistance, Over-Current Protection
※Use
capacitance of more than 10μF at
output short test by using external supply.
/OC Output Low Voltage
Figure 4. Measurement Circuit
Timing Diagram
t
OFF1
t
ON1
90%
V
OUT
10%
t
OFF2
t
ON2
V
EN
V
ENH
V
ENL
10%
90%
Figure 5. Output Rise/Fall Time
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BD82038FVJ
Typical Performance Curves
Datasheet
250
Ta=25°C
Operating Current : I
DD
I [µA]
OPERATING CURRENT :
[µA]
250
V
IN
=5.0V
Operating Current :
DD
[µA]
STANDBY CURRENT
I
: I
[µA]
200
200
150
150
100
100
50
50
0
2
3
4
5
AMBIENT TEMPERATURE : Ta[
℃
]
Supply Voltage : V
IN
[V]
Figure 6. Operating Current vs
Supply Voltage
EN Enable
0
6
-50
0
50
AMBIENT TEMPERATURE : Ta[
℃
]
Ambient Temperature : Ta[°C]
Figure 7. Operating Current vs
Ambient Temperature
EN Enable
100
1.0
Ta=25°C
1.0
V
IN
=5.0V
[µA]
0.6
Standby Current : I
STB
STANDBY CURRENT : I
[µA]
[µA]
0.8
0.8
STB
STANDBY CURRENT : I
[µA]
0.6
Standby Current : I
0.4
0.4
0.2
0.2
0.0
2
3
4
5
SUPPLY VOLTAGE
IN
V
IN
[V]
Supply Voltage : V
:
[V]
Figure 8. Standby Current vs
Supply Voltage
EN Disable
0.0
6
-50
0
50
AMBIENT TEMPERATURE : Ta[
℃
]
Ambient Temperature : Ta[°C]
Figure 9. Standby Current vs Ambient
Temperature
EN Disable
100
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