Datasheet > NCP1871

NCP1871

更新时间： 2024-11-27 01:17:39

品牌	Logo	应用领域
安森美 - ONSEMI		电池
页数	文件大小	规格书
27页	386K
描述
Narrow Voltage DC Battery Charger

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中文翻译

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NCP1871 数据手册

NCP1871

Narrow Voltage DC Battery

Charger

The NCP1871 is a NVDC switching battery charger designed for

2−3−4 battery cell applications such as ultra books or tablets. It is

optimized for use with the mobile computing chipsets, and is also

compatible with most mobile solutions.

www.onsemi.com

The NCP1871 is designed around a full NMOS DC to DC controller

that brings down the high voltage charger adapter voltage to a

regulated system supply that is in the same range as the battery pack

voltage. This limits the variation on the system supply voltage, and

improves the efficiency of the core converters. The device includes a

voltage droop monitor, charger adapter validation and blocking as well

as an intelligent battery connection control. The adapter current,

charge current and system current are closely monitored and an image

is provided to the host. The NCP1871 is fully programmable through

QFN20

MN SUFFIX

CASE 485CP

MARKING DIAGRAM

an I C friendly SMBus Interface.

XXXXX

ALYWG

Features

• SMBus Host−controlled NVDC−1 2S−4S Battery Charge Controller

• Instant−on Works with No Battery or Deeply Discharged Battery

• Automatic Supplement Mode with BATFET Control

• Battery Removal Sensor

XXXXX = Specific Device Code

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb−Free Package

• Programmable Switching Frequency

• SMBUS Clock up to 400 kHz (I C compatible)

(Note: Microdot may be in either location)

• Programmable Charge Current, Charge Voltage, Input Current Limit

with Interrupt Management

♦

0.5% Charge Voltage Regulation up to 18.08 V

3% Input/Charge Current Regulation up to 8.064 A

PIN CONFIGURATION

• Support Battery LEARN Function

• Support Shipping Mode and Hard System Reset

• Ultra−Low Quiescent Current of 10 mA at OFF Mode and High PFM

Light Load Efficiency 80% at 20 mA Load to Meet Energy Star and

ErP Lot6

20 19 18 17 16

ACSP

RBDRV

VIN

LSDRV

BCSP

GND

BCSN

• Full NMOS Solution

• Current and Power Monitoring

VSEL

BATDRV

VBAT

VINOK

• 3.5 mm x 3.5 mm QFN−20 Package

• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS

Compliant

(Top View)

Typical Applications

• Ultrabook

• Notebook

ORDERING INFORMATION

• Tablet PC

†

Device

NCP1871MNTXG

Package

Shipping

QFN20

(Pb−Free)

3000 / Tape &

Reel

†For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specification

Brochure, BRD8011/D.

Publication Order Number:

June, 2016 − Rev. 0

NCP1871/D

12 3 4 5 6 7...27

中文翻译

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