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NCP1871MNTXG

更新时间： 2024-11-24 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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NCP1871MNTXG 数据手册

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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  
1
QFN20  
MN SUFFIX  
CASE 485CP  
MARKING DIAGRAM  
2
an I C friendly SMBus Interface.  
XXXXX  
XXXXX  
ALYWG  
G
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  
A
L
Y
W
G
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Package  
• Programmable Switching Frequency  
2
• 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  
1
2
3
4
5
15  
14  
13  
12  
11  
ACSP  
RBDRV  
VIN  
LSDRV  
BCSP  
GND  
BCSN  
• Full NMOS Solution  
• Current and Power Monitoring  
VSEL  
BATDRV  
VBAT  
VINOK  
6
7
8
9
10  
• 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.  
© Semiconductor Components Industries, LLC, 2016  
1
Publication Order Number:  
June, 2016 − Rev. 0  
NCP1871/D  
1234567...27

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