ROHM BD2065AFJ BD2065AFJ Data Sheet User Manual
Summary
This single-channel smart high side switch IC is designed for reliable power management in USB and general low-voltage applications. Utilizing a low ON resistance N-MOSFET, it provides critical built-in protections including overcurrent detection (programmable thresholds), thermal shutdown, and under voltage lockout (UVLO). The manual details versatile operation modes (active-low/high) and extensive electrical specifications across wide operating temperature ranges. It is the ideal component for engineering secure power hubs in consumer appliances, automotive accessories, and PC peripheral equipment requiring stable and protected power delivery.
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Datasheet
High Side Switch ICs 1ch BD2061AFJ BD2065AFJ ●General Description ●Key Specifications Single channel high side switch IC for USB port is a Input voltage range: 2.7V to 5.5V high side switch having over current protection used in ON resistance : 80mΩ(Typ.) power supply line of universal serial bus (USB). Over current threshold: 1.1A min., 2.3A max. N-channel power MOSFET of low on resistance and Standby current: 0.01μA (Typ.) low supply current are realized in this IC. Operating temperature range: -40℃ to +85℃ And, over current detection circuit, thermal shutdown circuit, under voltage lockout and soft start circuit are ●Package W(Typ.) D(Typ.) H (Max.) built in.
SOP-J8 4.90mm x 6.00mm x 1.65mm
●Features Low on resistance 80mΩ N-ch MOSFET Switch. Continuous current load 1.0A Control input logic
Active-Low : BD2061AFJ Active-High: BD2065AFJ
Soft start circuit Over current detection Thermal shutdown Under voltage lockout
SOP-J8
Open drain error flag output Reverse-current protection when power switch off TTL Enable input 1.2ms typical rise time
●Applications USB hub in consumer appliances, Car accessory, PC, PC peripheral equipment, and so forth
●Typical Application Circuit
5V(typ.)
GND VBUS OUT
OUT IN D+
IN OUT
EN( /EN /OC GND
●Lineup
Over current threshold Control input logic
Package Orderable Part Number Min. Typ. Max.
1.1A 1.5A 2.3A Low SOP-J8 Reel of 2500 BD2061AFJ – E2 1.1A 1.5A 2.3A High SOP-J8 Reel of 2500 BD2065AFJ – E2
○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays www.rohm.com
TSZ02201-0E3E0H300150-1-2
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001 11.Mar.2013 Rev.001
Page Summary Contents For ROHM BD2065AFJ BD2065AFJ Data Sheet User Manual
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 25 |
| File Size | 481.83 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
What is the recommended operating voltage range for the switch?
The recommended operating voltage (VIN) range is 2.7V to 5.5V.
Which model should I choose if my controller requires an Active-Low signal?
Use the BD2061AFJ, as it uses Active-Low logic for control input.
Does this IC provide protection beyond just overcurrent?
Yes, it also includes thermal shutdown, under voltage lockout, and reverse-current protection.
What is the typical On resistance (RON) of the N-ch MOSFET?
The typical ON resistance (RON) is 80mΩ.