Datasheet > NCP4371AADDR2G

NCP4371AADDR2G

更新时间： 2024-10-03 01:01:03

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
14页	164K
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3.0 HVDCP Controller

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NCP4371AADDR2G 数据手册

NCP4371

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Qualcomm Quick Charget

3.0 HVDCP Controller

NCP4371 is a USB secondary side fast−charging controller,

supporting Qualcomm Quick Charge 3.0 (QC 3.0) High Voltage

Dedicated Charging Port (HVDCP) Class A and Class B specification.

NCP4371 allows for selection of the output voltage of an AC−DC USB

adapter based on commands from the Portable Device (PD) being

powered. Selecting a higher charging voltage will reduce the charging

current for a given power level resulting in reduced IR drops and

increased system efficiency. Another advantage of QC3.0 is a decreased

battery charging time and a reduced PD system cost thanks to the

ability to select an optimum charging voltage. This eliminates the need

for costly DC−DC converters within the PD. The USB−bus voltage

can be controlled in discreet steps from 3.6 V up to 20 V. The output

current is limited not to exceed maximum allowable power level.

The NCP4371 resides at the secondary (isolated) side of the adapter.

It includes voltage and current feedback regulation eliminating the

need for a shunt regulator such as TL431.

www.onsemi.com

SOIC−8

D SUFFIX

CASE 751

MARKING DIAGRAM

XXXXX

ALYWG

The NCP4371 provides charging current limits down to

VBUS = 2.2 V protecting the portable device from excessive currents

in case of a soft short−circuit condition.

The NCP4371 integrates a safe−discharge circuitry to quickly and

reliably discharge output capacitors in case the USB cable is

unplugged or connected to a 5 V only USB port.

XXXXX = Specific Device Code

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

Features

• Supports Qualcomm Quick Charge 3.0 HVDCP Class A/B

• Output Voltage Can be Configured in Discreet Steps from

PIN CONNECTIONS

♦ Class A: 3.6 V up to 12 V

♦ Class B: 3.6 V up to 20 V

VCC

GND

D−

DISCHARGE

DRIVE

• Compatible with USB Battery Charging Specification Revision 1.2

(USB BC1.2)

ISNS

• Constant Voltage and Constant Current Regulation

D+

COMP

• Soft Short−Circuit Current Limitation Down to V

= 2.2 V

BUS

(Top View)

• Removes a Need for the Secondary Side Shunt Regulator such as

TL431

• Output Capacitor Safe−Discharge Circuitry at Cable Unplug

• Fast Dynamic Response

ORDERING INFORMATION

See detailed ordering, marking and shipping information in the

package dimensions section on page 13 of this data sheet.

• Built−in Power Limiting Function

• Low Supply Current

• Wide Operating Input Voltage Range: 2.2 V to 28 V

• This is Pb−free Device

Typical Applications

• Fast Charging AC/DC Adapters for Smart Phones, Tablets and Other

Portable Devices

This document contains information on a product under development. ON Semiconductor

reserves the right to change or discontinue this product without notice.

Publication Order Number:

September, 2015 − Rev. P0

NCP4371/D

12 3 4 5 6 7...14

中文翻译

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与NCP4371AADDR2G相关器件

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NCP4371AAEDR2G	ONSEMI	获取价格	3.0 HVDCP Controller
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NCP4371BBEDR2G	ONSEMI	获取价格	3.0 HVDCP Controller
NCP437FCT2G	ONSEMI	获取价格	3A Ultra-Small Controlled Load Switch
NCP439	ONSEMI	获取价格	2A Very Low Ron Switches at Low Vin Voltage
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NCP4390DR2G	ONSEMI	获取价格	Resonant Controller with Synchronous Rectifier Control, Enhanced Light Load
NCP439FCT2G	ONSEMI	获取价格	2A Very Low Ron Switches at Low Vin Voltage
NCP4413	ONSEMI	获取价格	High-Speed MOSFET Drivers
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