USB375x

DS00001824A-page 4

 2011 - 2014 Microchip Technology Inc.

1.0

INTRODUCTION

The USB375x integrates many features that have historically been discrete devices in a mobile product. This device

provides significant VBUS protection for the entire system, robust USB interface ESD protection, a USB 2.0 compliant

High Speed switch, and USB-IF Battery Charger Detection (revision 1.2) capabilities that are essential to the latest

mobile products.

Several advanced features allow the USB375x to be optimized for portable applications and to reduce both eBOM part

count and printed circuit board (PCB) area. Outstanding ESD robustness eliminates the need for external ESD protec-

tion devices.

In addition to the integrated ESD protection on the USB interface, the USB375x provides VBUS Over-Voltage Protection

(OVP).

The USB375x integrated battery charger detection circuitry supports USB-IF Battery Charger Detection. Battery charger

detection will begin automatically whenever VBUS rises above the UVLO threshold, and can also be completed manu-

stream Port (SDP), a Charging Downstream Port (CDP), and a Dedicated Charging Port (DCP). For more information

on USB battery charger detection, please see the USB Battery Charging Specification, Revision 1.2 (Note 1).

USB port over traditional solutions which translate up to 1.5 amps via compatible USB host or dedicated charger. In

addition, this provides a complete USB charging ecosystem between device and host ports such as Dedicated Charging

Port (DCP), Charging (CDP) and Standard (SDP) Downstream Ports.

1.1

Reference Documents

• Universal Serial Bus Specification, Revision 2.0

• USB Battery Charging Specification, Revision 1.2 (Note 1)

Note 1: The device’s Data Contact Detect Timeout parameter does not conform to the USB Battery Charging Spec-

ification. However, this will not affect other factors in charger detection. Refer to Table 3-2, “Electrical Spec-

ifications,” on page 7 for additional information.