Overview

Product Description

The PI5USB2549 is a USB charging port controller and current limiting power switch. PI5USB2549 provides the electrical signatures on D+/D– to support different charging schemes and is compatible with both popular BC1.2 compliant and non-BC1.2 compliant devices. The PI5USB2549 65-mΩ power-distribution switch is intended for applications where heavy capacitive loads and short-circuits are likely to be encountered. Programmable current threshold provides flexibility for setting current limit. PI5USB2549 provides a /STATUS pin for plug-in detect indication.

Features

Supports DCP Modes per USB Battery Charging Specification 1.2
Supports Shorted Mode per Chinese Telecommunication Industry Standard YD/T1591-2009
Supports non-BC1.2 Charging Modes by Automatic Selection

Divider-1A mode
Divider-2A mode
Divider-2.4A mode (with MODE_SEL=’HIGH’ only)
DCP-1.2V mode

Integrated 65-mΩ (Typ.) High-Side MOSFET
Programmable Current Limit up to 3A (Typ.)
Accurate +/-7% Current Limit at 2.51A (Typ.)
Provides /STATUS Pin for Plug-In Detection
Operating Range:4.5V to 5.5V
Device Package: EP-SOP8L

Applications

Vehicle USB Power Charger
AC-DC Wall Adapter with USB Port
Other USB Charger

Specifications & Technical Documents

Product Parameters

Analog or Digital?	Mixed Signal
Configuration	1-Port
Differential Channels	N/A
HotInsertion	0
Lanes	N/A
OtherFeatures	Controller+ Power Switch, Charging and Data Transfer
Rail-to-Rail	0
Signal Type	N/A
Single Ended Channels	N/A
Type	N/A
Voltage	5

Technical Documents

Recommended Soldering Techniques

TN1.pdf

Purchase & Availability

Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN #	Issue Date	Implementation Date	Subject
PCN-2770	2025-10-30	2025-10-30	Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products

PI5USB2549 (Obsolete)