ROHM Power Management Switch ICS for PCs and Digital Consumer Products BD2247G User Guide
Summary
These low on-resistance N-channel MOSFET high-side switches are professional power management ICs, optimized specifically for demanding USB and portable electronics applications, including PCs and memory card devices. Featuring built-in protection such as over-current detection, thermal shutdown, and soft-start circuitry, they ensure reliable operation across a 2.7V to 5.5V range. The comprehensive manual provides detailed electrical specifications necessary for engineers designing consumer digital equipment globally.
Page 1 Text Content
Power Management Switch ICs for PCs and Digital Consumer Products
1ch Small Package High Side Switch ICs for USB Devices and Memory Cards
BD2246G, BD2247G No.11029EAT25
●Description BD2246G and BD2247G are low on-resistance N-channel MOSFET high-side power switches, optimized for Universal Serial Bus (USB) applications. BD2246G and BD2247G are equipped with the function of over-current detection, thermal shutdown, under-voltage lockout and soft-start.
●Features 1) Low On-Resistance (Typ. 110mΩ) N-channel MOSFET Built-in 2) Reverse Current Protection when Power Switch Off 3) Output Discharge Function 4) Over-Current Detection 5) Thermal Shutdown 6) Open-Drain Fault Flag Output 7) Under-Voltage Lockout 8) Soft-Start Circuit 9) Input Voltage Range: 2.7V ~ 5.5V 10) Control Input Logic Active-High (BD2246G), Active-Low (BD2247G) 11) SSOP5 Package
●Absolute Maximum Ratings (Ta=25℃)
Parameter Symbol Ratings Unit
VIN supply voltage VIN -0.3 ~ 6.0 V
EN(/EN) input voltage VEN(/EN) -0.3 ~ 6.0 V
/OC voltage V/OC -0.3 ~ 6.0 V
/OC sink current I/OC 5 m A
VOUT voltage VOUT -0.3 ~ 6.0 V
Storage temperature TSTG -55 ~ 150 ℃
Power dissipation Pd 675 *1 m W *1 Mounted on 70mm x 70mm x 1.6mm glass epoxy board. Reduce 5.4m W per 1℃ above 25℃ * This IC is not designed to be radiation-proof.
●Operating Conditions
Ratings
Parameter Symbol Unit
Min. Typ. Max.
VIN operating voltage VIN 2.7 5.0 5.5 V
Operating temperature TOPR -40 - 85 ℃
www.rohm.com 2011.05 - Rev.A
© 2011 ROHM Co., Ltd. All rights reserved.
Page Summary Contents For ROHM Power Management Switch ICS for PCs and Digital Consumer Products BD2247G User Guide
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 14 |
| File Size | 292.71 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What is the input voltage range for BD2246G and BD2247G?
The input voltage range is 2.7V to 5.5V.
How do BD2246G and BD2247G differ in control input logic?
BD2246G uses active-high logic; BD2247G uses active-low logic.
What is the typical on-resistance of these high-side switches?
The typical on-resistance is 110mΩ.
What protection features do these ICs include?
They have over-current, thermal shutdown, UVLO, soft-start, and reverse current protection.