Type-C DRP Controller with 32-bit

RISC-V MCU

Hynetek Semiconductor Co., Ltd.

HUSB251

©2023 Hynetek Semiconductor Co., Ltd. All rights reserved.

Rev. 1.0

www.hynetek.com

FEATURES



USB Type-C DRP with PD protocol Supported

–

Compliant with USB Type-C Specification

Reversion 2.1

–

Compliant with USB PD Specification

Reversion 3.1



Bidirectional PD protocol for Type-C with 28 V

EPR FPDO and EPR AVS Supported



Integrated VCONN Power for eMarker Detection



Integrated N-MOSFET drive with soft start



Multiple DPDM Charging Protocols Implemented

–

BC1.2 DCP and Divider 3

–

QC2.0, QC3.0, AFC, FCP, UFCS



Up to 35 V Maximum Voltage Rating at USB

Type-C Connector Pins



Programmable Constant Voltage and Constant

Current Control



Integrated dead battery function for power

requesting as SINK



Fault Protections including VIN OCP, SCP, UVP,

OVP and CC OVP, OCP, DPDM OVP, OTP, TSD

and so on



32-bit RISC-V MCU with 32 kB MTP Memory



Integrated I2C and UART module for system

communication



Integrated deep sleep mode for power saving



±4 kV HBM ESD Rating for all of Type-C

Connector Pins

APPLICATIONS

Travel Adaptor

Car Charger

Battery Powered Devices

GENERAL DESCRIPTION

HUSB251 is designed for a USB Type-C DRP product.

It can support up to multiple PDOs with programmable

voltage and current for different applications, such as

PPS PDOs, EPR PDOs. All of PDOs are fully

compliant with USB PD 3.1 Specification Rev.1.8

Besides, HUSB251 implements DPDM charging

protocols for source. Both D+ and D- pins can be

configured to support QC2.0, QC3.0, AFC, FCP, UFCS

and divider 3 mode which provide excellent

compatibility for the legacy devices.

It integrates an GATE driver to enable between VBUS

and VIN to protect the devices connected with Type-C

connector.

The high voltage tolerance and protections at CC1,

CC2, D+ and D- pins provides more reliability for the

system.

TYPICAL APPLICATION CIRCUIT

* HUSB251 IFB PIN Sink max current is 200uA; just select the Appropriate value of R1&R2 to ensure the max votage of VBUS

HUSB251

QFN-24

GATE

VFB

CS-

VDD

5mΩ

1

μF/6.3V

D+

510

Ω

1k

Ω

100nF/35V

1

μF/35V

1

μF/6.3V

IFB

VBUS

GND

CC2

CC1

D-

D+

GPIO0

OTP

PIN 1

1

μF

1k

Ω

100nF/35V

Optional

22

Ω

22

Ω

330pF/50V

22

Ω

22

Ω

330pF/50V

GPIO1

ADN

GPIO4

GPIO5

1k

Ω

1k

Ω

680

μF

DC-DC

Converter

R1

R2

VOUT

GND

FB

EN

LDO

OUT

GND

VIN

Battery

10

μF/35V

VIN

Figure 1. Typical Application Circuit for DRP