AP43776Q

Document number: DS43207 Rev. 2 - 2

1 of 13

www.diodes.com

November 2022

© Diodes Incorporated

AP43776Q

AUTOMOTIVE-GRADE DUAL-CHANNEL USB TYPE-C PROTOCOL DECODER

Description

The

DIODES™ AP43776Q is a highly integrated, dual-channel, USB

Type-C®, PD3.1 / PPS, BC 1.2 and QC protocol decoder. It passes

certification of USB Type-C power delivery specification Rev 3.1 with

PPS and Quick Charge

TM QC5 protocol.

The device can support the full range of PPS APDO (augmented

power data object) from 3.3V to 21V with 20mV/step voltage

resolution and up to 6A current with 50mA/step resolution for power

management. To enable output current beyond 3A, the AP43776Q

supports e-Marker cable detection with built-in VCONN switch with

30mA driving capability and over-current protection (OCP). Cable-

loss compensations are also embedded.

During the power charging, AP43776Q can support Display Port

Alternate Mode by decoding out the CC signal and deliver the

routing signal to the mux switch through I2C interface, Meanwhile,

the AP43776Q also supports BC1.2 CDP handshaking.

The AP43776Q provides an embedded MCU and built-in ADC

converters for voltage and temperature measurement, where over-

temperature protection (OTP) and other specific functions can be

implemented through I2C pins and rich GPIO pins. Working in

conjunction with two I2C-equipped Buck-Boost controllers or

converters which have PD3.1 PPS output circuitry, the AP43776Q

serves as the I2C master and supports two independent PD3.1 PPS

charging applications without using additional output enable MOS

chips for each PD3.1 output port.

With built-in firmware, the AP43776Q can support various smart

power-management functions such as power-sharing scheme

between two attached USB Type-C PD devices, low-battery power

de-rating, thermal power de-rating, LED light indication, etc. Two

AP43776Q devices can also be interconnected through a UART

(GPIO) pin to implement smart power-sharing scheme for all four

connected USB Type-C ports attached to a fixed power source.

Features



AEC-Q100 Qualified with the Following Results:



Device Temperature Grade 1: -40°C to +125°C TA Range



Device HBM ESD Classification Level H3A



Device CDM ESD Classification Level C5



Dual-channel independent USB Type-C PD3.1/PPS decoder



USB-IF PD3.1/PPS certificated TID: 6206



Quick Charge

™ QC5 certificated No.: QC20211008263



PD3.1/ full range of PPS VOUT (3.3V to 21V)



Compliant with BC1.2 DCP mode for QC2.0/3.0/4/4+/5



Type-C PD Display Port Alternative mode



BC 1.2 CDP (Charging Downstream Port) mode for Charging

Downstream device and allow data transfer



Built-in ADC and multi-channel multiplexer for voltage and

temperature measurement



e-Marker detection and VCONN 30mA capability



Cable-loss compensations



I2C Interface and Interrupt



Multi-purpose I/Os to support different applications



CC1/CC2 to VBUS short protection up to 24V



Moisture detection between DP and DN



Thermal protection through external NTC



Output power de-rating for low battery



Built-in MCU with 12KB OTP ROM for main application

program with multi-time-programmable ROM (MTP ROM)

blocks for customization



W-QFN4040-20(SWP) (4x4, 0.5mm pitch) package

Pin Assignments

(Top View)

W-QFN4040-20

Features (continued)



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)



The AP43776Q is suitable for automotive applications

requiring specific change control; this part is AEC-Q100

qualified, PPAP capable, and manufactured in IATF 16949

certified facilities.

https://www.diodes.com/quality/product-definitions/

Applications



In-vehicle multi-port USB PD3.1 charging systems

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/

for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-

free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.