AP43776QZDZW20-13 | USB-C PD Protocol Decoder

The AP43776Q is an automotive-compliant, USB Type-C® Power Delivery (PD) 3.1, Standard Power Range (SPR), 3.3V~21V decoder dedicated to power source applications with legacy capability.

It is compliant with USB Type-C Specification Rev 1.2 and USB power delivery specification Rev 3.0 Silicon Compliance Certification: TID – 6206). It also has passed QC4/4+/QC5 Compliance Certification by GRL (QC20211008263).

The device supports Programmable Power Supply (PPS) with 20mV/step resolution and 50mA/step current resolution for optimal battery thermal management.

I2C interface and GPIO pins are available to facilitate multi-port, independent output voltage applications with built-in smart power sharing firmware. Smart features such as low-battery and thermal power management, as well as charging status or fault indication, are supported via customizable built-in firmware.

This part supports DisplayPort™ Alternate Mode by decoding the CC pin handshaking and via I2C controlling the SS data switches.

The device is available in the Wettable Flank W-QFN4040-20 (SWP) (Type A1) package.

The DIODES Advantage

The automotive-compliant, dual-port, USB PD protocol decoder is for multi-port, fast-charging applications.

• Supports Two Independent USB Type-C PD Ports with USB PD3.1 SPR (3.3V~21V) Voltages
  • Multiple USB Type-C ports with independent charging output voltages for optimized power usage
• Enables USB Type-C PD with DisplayPort Alt Mode
  • Fully supports USB Type-C over Alternate Mode to allow upstream-facing port (UFP) video data (DisplayPort, USB 3.1) into infotainment systems
• CC1/CC2 Short-Protection to V_BUS
  • To avoid damages caused by unintended shorts between CC1/2 pins and V_BUS pin
• Supports E-Marker Cable Detection with Built-In V_CONN Switch and Overcurrent Protection (OCP)
  • Aides USB Type-C cable authentication
• I2C/UART Interface Enables Inter-Chip Communication
  • 1) Supports smart power sharing for up to four USB Type-C PD ports
  • 2) Saves the USB Type-C PD port V_BUS output MOS switch by using the synchronous buck-boost controller/converter's MOS

Applications

• In-vehicle USB PD3.1 SPR multi-port charging
• Quad USB PD3.1 SPR ports supporting smart power sharing

Application Schematics

AP43776Q Dual-Port with DP-Alt Mode and BC 1.2 DCP Mode in Vehicles