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High-Performance USB PD Sink Controller

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The DIODES™ AP33772 is a highly integrated USB Type-C® PD3.0/PPS sink controller targeted for DC power request and control for USB Type-C connector-equipped devices (TCD). To leverage the increasing popularity of standard USB Type-C PD3.0 power adaptors, the AP33772 negotiates with an existing PD3.0 adaptor to acquire the required power profile to power the TCD.

For more flexible PD3.0 and PPS power applications where direct voltage and current request with fine-tuning capabilities (20mV/Step, 50mA/Step) are required, the AP33772 supports I2C communication – I2C Interface pins (SCL, SDA), I2C registers and command setting, for host CPU of TCD to communicate with.

Rich power functions embedded on the chip reduce total bill of materials (BOM) while maintaining maximum flexibility. A one-time-programmable (OTP) ROM is provided for the main firmware and a multi-time-programmable (MTP) ROM will be provided for user-configuration purpose.


  • Compliant with USB PD Rev. 3.0 v1.2 with PPS
  • PD sink controller with I2C bus communication
  • Supports PPS with 20mV/step voltage and 50mA/step current
  • Supports OTP (overtemperature protection), derating function
  • Supports interrupt and its mask to a host MCU
  • Supports status register for system monitor and control
  • Supports flash FAULT LED indication for negotiation mismatch
  • Supports OTP (One-Time-Programmable) for main firmware
  • Supports OVP with auto restart
  • Supports OCP with auto restart
  • Supports power-saving mode
  • Supports Driver for N-MOS VBUS power switch
  • Supports dead-battery mode
  • Operating voltage range: 3.3V to 24V
  • MTP (Multi-Time-Programmable) is reserved for future configuration
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative.



  • USB Type-C connector-equipped battery-powered devices
  • USB Type-C connector-equipped DC-power input devices
  • USB PD3.0 PPS testers
  • USB Type C-to-traditional barrel-connector power-adaptor cables

Product Specifications

Product Parameters

VCC Maximum Rating 24 V
OperatingCurrent (µA) 3300 µA
Protocol Compatible USB PD3.0&QC4/4+
I2C Support Yes
Voltage Sense Reference(5V/9V/12V) Programmable
Current Sense Reference(5V/9V/12V) Programmable
VCC UVLO (V) 2.7 V
Release Date 202205

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