OB2603x

 GENERAL DESCRIPTION

        The OB2603x is a highly integrated secondary -side constant voltage and constant current (CV/CC) controller supporting both Qualcomm Quick Charge QC3.0 protocol and Media Tek Pump Express Plus 2.0 PE+2.0 protocol. It is used in application that requires constant voltage (CV) and constant current (CC) regulation. Two operational amplifiers are built in for voltage loop (CV) and current loop (CC) regulation with programmable voltage reference to provide adaptive CV and CC in high precision. The high gain current sense amplifier minimizes the offset for decreasing power loss of sense resistor.

FEATURES

n Protocol Support

l USB BC 1.0&1.2

l Qualcomm Quick Charge 2.0 & 3.0 (QC2.0 & QC3.0)

l Media Tek Pump Express 1.0& 2.0 (PE+1.0 & PE+2.0)

l Automatic Identification of Protocols

n Highly Integration

l Secondary—Side Constant Voltage （CV）and Constant Current（CC）Regualtion

l Built-in Two Operational Amplifiers for Dual CV/CC control

l Built-in Unplug Fast Discharging Control

l Programmable Cable Drop Compensation

l Built-in opto-coupler driver

l Support 15W, 18W and 24W

n Low Operating Current

n Wide operation voltage range from 3V to 12V.

n Comprehensive protection coverage

l Output over voltage protection（OVP）

l Output under voltage protection（UVP）

l Internal over temperature protection（OTP）

APPLICATIONS

n Quick-charging AC/DC chargers for cell phones, tablets and other portable devices

n AC/DC Adapters for Portable Devices that Requires CV/CC control

TYPICAL APPLICATION