Datasheet > ISL95871C_11

ISL95871C_11

更新时间： 2024-02-12 19:08:08

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池
页数	文件大小	规格书
26页	897K
描述
SMBus Interfaced Battery Charger with Internal FETs

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ISL95871C_11 数据手册

SMBus Interfaced Battery Charger with Internal FETs

ISL95871C

Features

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.

• 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 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.

- Adapter Current (3% Accuracy)

- AC-Adapter Detection

• 11-Bit Battery Voltage Setting

Applications

• 6 Bit Charge Current/Adapter Current Setting

• 8A Maximum Battery Charger Current

• 11A Maximum Adapter Current

• +8V to +22V Adapter Voltage Range

• Pb-Free (RoHS Compliant)

• Notebook Computers

• Tablet PCs

• Portable Equipment with Rechargeable Batteries

Related Literature

• 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)

June 8, 2011

FN6856.2

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

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

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

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与ISL95871C_11相关器件

型号	品牌	获取价格	描述	数据表
ISL95871CHRZ	INTERSIL	获取价格	SMBus Interfaced Battery Charger with Internal FETs
ISL95871CHRZ	RENESAS	获取价格	1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC50, 5 X 7 MM, ROHS COMPLIANT, PLASTIC, QFN-50
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

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