LD6612USB Power Delivery Controller

The LD6612 is an USB Power Delivery (USB PD) Type-C controller in the secondary side for highly efficient and slim form factor off-line AC-DC design. An 8-bit MCU is embedded to handle PD protocol, policy engine and device policy manager with built-in Bi-phase Mark Coding (BMC) for USB PD communication or other proprietary protocols (e.g.QC2.0/QC3.0).
To minimize external components, it integrates shunt regulator, voltage and current monitor and control circuit of blocking N-MOSFET. Build-in regulators provides 4.8V for MCU and peripherals to operate at single power supply from 3.3 to 24V.




  • Protocol Support:

    USB PD2.0 and PD3.0 (PPS)

    Other Proprietary Protocols

  • Embedded MCU with 16kbyte OTP and 256+384bytes SRAM
  • Built-in 10-bit Analog-to-Digital Converter (ADC)
  • CC and CV Control
  • Quick Discharge Output Capacitor
  • Built-in Shut Regulator
  • Programmable Cable Compensation
  • Wide Operating Voltage Range: 3.3V~21V
  • External Blocking N-MOSFETs Control
  • Support Power Saving Mode in Standby
  • Support VCONN power for E-marked cable
  • Programmable Over Voltage Protection (OVP)
  • Programmable Over Current Protection (OCP)
  • Programmable Short Circuit Protection (SCP)
  • Over Temperature Protection (OTP)



  • USB Type-C chargers and adapters