The FUSB15101 is a highly integrated USB Power Delivery (PD)

power source controller that can control the opto?coupler in the

secondary side of an AC?DC adapter or a DC?DC port power

regulator.

The FUSB15101 enables a complete solution for USB power

sources through optimized hardware peripherals and complete

open?source embedded firmware all in a compact solution.

It integrates a highly efficient Arm Cortex?M0+ processor with

custom designed peripherals to seamlessly support USB PD 3.1 source

applications. The FUSB15101 supports the PPS specification in USB

PD, with a minimum of 3.3 V and a maximum of 21 V output voltage

control. It includes Constant Voltage (CV) and Constant Current Limit

(CL) control blocks, various protection mechanisms and high voltage

tolerance on connector pins.

Key Features

? 32?bit Arm Cortex?M0+ Processor

? 32 KB OTP (One Time Programmable) Program Memory

? USB PD 3.1 with PPS Support

 Power Management Unit with VIN Support from 3.3 V to 24 V

 Integrated VCONN Supply for Interrogating E?Marked Cables

? Idle and Sleep Modes to Meet CoC and DoE Requirements

? Peripherals

 USB Type?C / PD Detection and Communication Layer

 VBUS NMOS Gate Driver for Load Switch Control

 VBUS Discharge Functionality

 Programmable Constant Voltage & Constant Current Control

 Two 10?bit DAC’s for Precise Voltage and Current Control

 Two NTC Temperature Measurements

 10?bit ADC for Voltage, Current and Temperature Reporting

 Two General Purpose 32?bit Timers

 Watchdog Timer (WDT)

 I2C Master/Slave Peripheral

 UART on D+/? Pins

? Output Fault Protection

 Over?Voltage

 Under?Voltage

 Over?Current

 Over?Temperature

? 20?pin QFN Package (4 mm x 4 mm, 0.5 P)

Typical Applications

? Wall Chargers for Mobile Phones and

Tablets and Computing Devices

? AC?DC USB PD Compliant Adapters

? Power Banks

? Cigarette Lighter Adapters