company blog about Seeking Southchip SC2151 Fast Charging Controller: Integrated CC/CV Loop, Built-in Compensation for Type-C/PD and DPDM Protocols

Southchip SC2151 Fast Charging Controller: Integrates CC/CV Loops and Type-C/PD Protocols—the Preferred Solution for Adapters

SC2151 Product Overview

The SC2151 is a highly integrated Type-C/PD and DPDM fast-charging controller launched by Shanghai Southchip Semiconductor (Southchip), specifically designed for wall chargers and travel chargers. The chip integrates CC/CV loop control with built-in loop compensation, supports the latest USB PD 3.0 protocol standard, and is compatible with various proprietary fast-charging protocols via the DPDM interface.

As a core member of Southchip’s fast-charging protocol chip family, the SC2151 minimizes the number of external components through the high integration of multiple functional modules, providing a simple, efficient, and cost-effective solution for fast-charging adapter designs. The chip has obtained USB-IF PD 3.0 certification (TID: 4869), earning authoritative industry recognition.

SC2151 Key Technical Features

1. Integrated CC/CV Loop Control with Built-in Loop Compensation

The most notable feature of the SC2151 is its integrated CC/CV (Constant Current/Constant Voltage) loop control with built-in loop compensation. This eliminates the need for external RC components, significantly simplifying system design and reducing BOM costs. This design enables the adapter to maintain stable voltage and current output under various load conditions, making it particularly suitable for fast-charging applications that require precise voltage and current control.

2. Comprehensive Fast Charging Protocol Support

The SC2151 supports the following fast charging protocols:

USB PD 3.0 (including PPS, supporting programmable voltages from 3.3V to 21V)

Type-C DFP (supporting configurable RP)

DPDM interface fast charging: Apple 2.4A, BC1.2, DCP, HVDCP, AFC, FCP, SCP, VOOC, etc.

The chip integrates a USB PD baseband (PHY), Type-C detection, and DPDM PHY, making it compatible with the fast-charging requirements of the vast majority of smartphones on the market.

3. High Integration and Flexibility

The SC2151 integrates a wide range of functional modules, including:

32-bit embedded microcontroller + 24KB OTP + 2KB RAM

10-bit high-performance ADC + two sets of 10-bit DACs (supporting voltage/current regulation)

VBUS output path + NMOS gate driver

VCONN power supply (supporting SOP’ communication and E-marker cable detection)

I2C interface (Supports optocoupler feedback voltage regulation or I2C-controlled voltage regulation)

4. Comprehensive Multi-Level Protection Mechanisms

The SC2151 integrates a wide range of protection features to ensure stable and reliable system operation:

OVP: Overvoltage Protection (chip/CC/DPDM)

UVP: Undervoltage Protection

OCP: Overcurrent Protection

SCP: Short-Circuit Protection (VCONN, etc.)

OTP: Overtemperature Protection

VCONN Protection: OVP/OCP/SCP

Application Areas

The SC2151 is primarily used in the following scenarios:

Wall chargers

Travel chargers

Gallium Nitride (GaN) fast chargers (in conjunction with Nanshin’s SC3021 series primary controllers and SC3503 synchronous rectification controllers)

Purchase Information

Shenzhen Mingjiada Electronics Co., Ltd. is currently seeking to purchase large quantities of Nanshin SC2151 fast-charging controllers on a long-term basis. We welcome inquiries regarding pricing and supply from both new and existing customers.

Founded in 2004, Mingjiada Electronics is a supply chain service provider specializing in the distribution of electronic components. Its main products include power management ICs, microcontrollers, communication ICs, and automotive-grade ICs. The company operates warehouses in multiple locations across Shenzhen and Hong Kong, supporting immediate delivery from stock.

If you have SC2151 in stock or related supply information, please contact:

Company Name: Shenzhen Mingjiada Electronics Co., Ltd.

Phone: +86 13410018555

Email: sales@hkmjd.com

Address: 1239-1241, New Asia Guoli Building, Zhenzhong Road, Futian District, Shenzhen

Website: https://www.integrated-ic.com/

Tags: Wanted: SC2151AQDER, SC2151AQDE, SC2151AQD, SC2151AQ, SC2151A, SC2151