Datasheet > ISL95871CHRZ

ISL95871CHRZ

更新时间： 2024-11-05 05:39:47

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池
页数	文件大小	规格书
25页	714K
描述
SMBus Interfaced Battery Charger with Internal FETs

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中文翻译

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ISL95871CHRZ 数据手册

SMBus Interfaced Battery Charger with Internal FETs

ISL95871C

Features

• Internal Synchronous Buck Output Stage Power FETs

• 0.5% Battery Voltage Accuracy

• 3% Adapter Current Limit Accuracy

• 3% Charge Current Accuracy

• SMBus 2-Wire Serial Interface

• Battery Short Circuit Protection

• Fast Response for Pulse-Charging

• Fast System-Load Transient Response

• Monitor Outputs

The ISL95871C is a highly integrated Lithium-ion

battery charger controller, programmable over the

System Management Bus (SMBus) with internal

switching FETs. High efficiency is achieved with a DC/DC

synchronous-rectifier buck converter, equipped with

diode emulation for enhanced light load efficiency and

system bus boosting prevention. The ISL95871C

charges one to four Lithium-ion series cells, and delivers

up to 8A charge current. Integrated MOSFETs and

bootstrap diode result in fewer components and smaller

implementation area. Low offset current-sense amplifiers

provide high accuracy with 10mΩ sense resistors. The

ISL95871C provides 0.5% battery voltage accuracy.

- Adapter Current (3% Accuracy)

- AC-Adapter Detection

The ISL95871C also provides a digital output that

indicates the presence of the AC-adapter as well as an

analog output which indicates the adapter current within

4% accuracy.

• 11-Bit Battery Voltage Setting

• 6 Bit Charge Current/Adapter Current Setting

• 8A Maximum Battery Charger Current

• 11A Maximum Adapter Current

Applications

• +8V to +22V Adapter Voltage Range

• Pb-Free (RoHS Compliant)

• Notebook Computers

• Tablet PCs

Related Literature

• Portable Equipment with Rechargeable Batteries

• See AN1590, ISL95871C Evaluation Board User

Guide

100

1 CELL

4 CELL

3 CELL

4 CELL

2 CELL

3 CELL

2 CELL

1 CELL

100

125

150

AMBIENT TEMPERATURE (°C)

CHARGE CURRENT (A)

FIGURE 1. EFFICIENCY vs CHARGE CURRENT AND

BATTERY VOLTAGE (EFFICIENCY

DCIN = 20V)

FIGURE 2. DERATING CURVE WITH NATURAL AIR

FLOW (MEASURED ON 10cm x 10cm

EVALUATION BOARD)

September 29, 2010

FN6856.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

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与ISL95871CHRZ相关器件

型号	品牌	获取价格	描述	数据表
ISL95871CHRZ-T	RENESAS	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC50, 5 X 7 MM, ROHS COMPLIANT, PLASTIC, QFN-50
ISL95871CHRZ-T13	RENESAS	获取价格	Power Supply Management Circuit
ISL95872	INTERSIL	获取价格	Output Voltage Remote Sense
ISL95872	RENESAS	获取价格	Buck PWM Controller with Internal Compensation and External Reference Tracking
ISL95872HRUZ-T	RENESAS	获取价格	Buck PWM Controller with Internal Compensation and External Reference Tracking
ISL95872HRUZ-T	INTERSIL	获取价格	Output Voltage Remote Sense
ISL95873	INTERSIL	获取价格	Buck PWM Controller with Internal Compensation and External Reference Tracking
ISL95874	INTERSIL	获取价格	PWM DC/DC Controller with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95874	RENESAS	获取价格	PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator
ISL95874HRUZ-T	RENESAS	获取价格	PWM DC/DC Controllers with VID Inputs for Portable GPU Core-Voltage Regulator

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