LD6618USB Power Delivery Controller

The LD6618 is a highly integrated USB Power Delivery (USB PD) controller that supports USB PD 3.1 SPR & EPR 28V/36V/48V specification. The LD6618 is a specially designed IC for USB Type-C power source applications such as power adapters, wall chargers, car chargers, etc.
An 8-bit MCU is embedded to handle PD protocol and device manager with built-in Bi-phase Mark Coding (BMC) PHY for USB PD 3.1 SPR & EPR 28V/36V/48V specification or other proprietary protocols.
As expected, the power noise will be increase, when a device will provide more high power due to the support of USB PD 3.1. The LD6618 has an optimized BMC physical (PHY) which can implement communication by differential signal to efficaciously prevent power noise.
To minimize external components, the LD6618 integrates optimized BMC PHY, blocking N-MOSFET driver, a voltage/current monitor, and controller. The 3.3V to 60V wide operation voltage makes LD6618 can supports USB PD 3.1 SPR & EPR 28V/36V/48V specification.

 

Features

  • Protocol Support:
  • USB PD 3.1 SPR & EPR 28V/36V/48V/Other Proprietary Protocols
  • Embedded MCU with 32kbyte OTP and 256+384bytes SRAM
  • Built-in 11bit Analog-to-Digital Converter (ADC)
  • CC and CV Control
  • Quick Discharge of Output Capacitor
  • Built-in Shut Regulator
  • Programmable Cable Compensation
  • Wide Operating Voltage Range: 3.3V~60V
  • External Blocking N-MOSFET’s Control
  • Support Power Saving Mode in Standby
  • Programmable Current Source for Type-C Pull-up Rp
  • Adjusted characteristic of Converter Compensation
  • Low Side Current Sense Amplifier
  • Auxiliary Power Supply Pin
  • FAN_PWM & TACHO Pin
  • PFC ON/OFF Control
  • Support VCONN Power for E-marked Cable
  • Programmable Protection
    Over Voltage Protection (OVP)
    Under Voltage Protection (UVP)
    Over Current Protection (OCP)
    Short Circuit Protection (SCP)
    Over Temperature Protection (OTP)
  • General Purpose I/Os
  • Package: QFN-16, QFN-20

 

Applications

  • USB Type-C chargers, Laptop power adapters, Battery charger, Power state manager, car chargers, Server power supply, Communication power supply, etc.

 

 Protocol Support:
USB PD 3.1 SPR & EPR 28V/36V
Other Proprietary Protocols
 Embedded MCU with 32kbyte OTP and 256+384bytes SRAM
 Built-in 11-bit Analog-to-Digital Converter (ADC)
 CC and CV Control
 Quick Discharge Output Capacitor
 Built-in Shunt Regulator
 Programmable Cable Compensation
 Wide Operating Voltage Range: 3.3V~45V
 External Blocking N-MOSFETs Control
 Support VCONN power for E-marked cable
 Programmable Over Voltage Protection (OVP)
 Programmable Under Voltage Protection (UVP)
 Programmable Over Current Protection (OCP)
 Programmable Short Circuit Protection (SCP)
 Over Temperature Protection (OTP)
 PFC ON/OFF Control
LD6618
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