NCP4371AACDR2G

Description：IC BATTERY CHARGER 8SOIC
Series：*
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:f2c027616b82 Category: Battery Chargers Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC BATTERY CHARGER 8SOIC
Series：*
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Battery Chemistry：-
Voltage - Supply (Max)：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
Number of Cells：-
Current - Charging：-
Programmable Features：-
Fault Protection：-
Charge Current - Max：-
Battery Pack Voltage：-
Interface：-
Grade：-
Qualification：-

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NCP4371AACDR2G

Overview

The NCP4371AACDR2G is a secondary side controller for Qualcomm Quick Charge 3.0 (QC 3.0) High Voltage Dedicated Charging Port (HVDCP) A and B specifications. It enables AC-DC USB adapters to select output voltage based on Portable Device (PD) commands, ranging from 3.6V to 20V in steps. Integrated voltage and current feedback regulation eliminates the need for external shunt regulators like TL431. The device includes a safety discharge circuit for rapid capacitor discharge upon cable removal or connection to 5V-only ports.

Feature Summary

Supports QC 3.0 HVDCP A and B specifications for optimized charging voltage selection
Integrates voltage and current feedback regulation without requiring external shunt regulators
Includes safety discharge circuit for reliable output capacitor discharge

Applications

AC-DC USB adapters supporting Qualcomm Quick Charge 3.0
Secondary side control for high-efficiency power supplies
Portable device charging systems requiring dynamic voltage adjustment

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package integrity and pin alignment against SOIC-8 specifications. Review datasheet revisions for any functional updates. Ensure storage conditions comply with moisture sensitivity level requirements. Validate compatibility with target adapter topology before integration.

Selection Notes

Select this component for designs requiring QC 3.0 compliance and integrated regulation. It simplifies design by removing external shunt regulator components. Consider system efficiency gains from reduced IR drop at higher voltages. Evaluate thermal performance within the adapter enclosure. Verify PD communication protocol support for target devices.

Part Context

This part belongs to ON Semiconductor's secondary side controller family designed for advanced fast-charging standards. It addresses the need for efficient power delivery in modern USB adapters by enabling direct voltage negotiation between the charger and the portable device, reducing system cost and complexity compared to traditional DC-DC converter approaches.