○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
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Datashee
t
TSZ22111・14・001
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ02201-0E3E0H300010-1-2
25.JUL.2012 Rev.001
www.rohm.com
Power Management Switch ICs for PCs and Digital Consumer Products
1ch Small Package
High Side Switch ICs
for USB Devices and Memory Cards
BD2248G
●Description
BD2248G is low on-resistance N-channel MOSFET
high-side power switches, optimized for Universal
Serial Bus (USB) applications. BD2248G is equipped
with the function of over-current detection, thermal
shutdown, under-voltage lockout and soft-start.
●Features
Reverse Current Protection when Power S witch Off
Output Discharge Function
Over-Current Detection
Thermal Shutdown
Open-Drain Fault Flag Output
Under-Voltage Lockout
Soft-Start Circuit
Control Input Logic Active-High
ESD protection
●Applications
USB hub in consumer appliances, Car accessory, PC,
PC peripheral equipment, and so forth
●Key Specifications
Input voltage range: 2.7V to 5.5V
ON resistance: (VIN=5V) 110mΩ(Typ.)
Over current threshold: 0.2A min., 0.4A max.
Standby current: 0.01μA (Typ.)
Operating temperature range: -40℃ to +85℃
●Package
(Typ.) (Typ.) (Max.)
SSOP5 2.90mm x 2.80mm x 1.25mm
●Typical Application Circuit
SSOP5
Figure 1. Typical Application Circuit
10kΩ~
100kΩ
C
L
C
IN
VIN
GND
EN
VOU
T
/
OC
5V (Typ.)
+
-
3.3V
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Datasheet
Datasheet
BD2248G
© 2012 ROHM Co., Ltd. All rights reserved.
www.rohm.com
TSZ22111・15・001
TSZ02201-0E3E0H300010-1-2
25.JUL.2012 Rev.001
●Block Diagram
●Pin Configuration
●Pin Descriptions
Pin No. Symbol I/O Function
1 VIN - Switch input and the supply voltage for the IC.
2 GND - Ground.
3 EN I
Enable input.
High level input turns on the switch.
4 /OC O
Over-current notification terminal.
Low level output during over-current or over-temperature condition.
Open-drain fault flag output.
5 VOUT O Switch output.
Figure 2. Block Diagram
Figure 3. Pin Configuration (TOP VIEW)
VIN
GND
EN
1
2
3 4
5
/OC
VOUT