Datasheet > ISL6258A

ISL6258A

更新时间： 2024-11-14 01:22:35

品牌	Logo	应用领域
瑞萨 - RENESAS		/
页数	文件大小	规格书
2页	185K
描述
Narrow VDC Regulator/Charger with SMBus Interface

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数据手册

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ISL6258A 数据手册

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To request the full datasheet, please visit www.intersil.com/products/ISL6258 or ISL6258A

ISL6258, ISL6258A

FN6571

Rev 1.00

December 11, 2007

Narrow VDC Regulator/Charger with SMBus Interface

The ISL6258, ISL6258A are a highly integrated Narrow VDC

system voltage regulator and battery charger controller.

Operating parameters are programmable over the System

Management Bus (SMBus). The ISL6258, ISL6258A are

designed for applications where the system power source is

either the battery pack or the output of the regulator/charger.

This makes the max voltage to the system equal to the max

battery voltage instead of the max adapter voltage. The

ISL6258, ISL6258A also include a system to control trickle

charging deeply discharged batteries while maintaining

system voltage at a user defined minimum. High efficiency is

achieved with a DC/DC synchronous-rectifier buck converter,

equipped with diode emulation for enhanced light load

efficiency and AC adapter boosting prevention. The ISL6258,

ISL6258A can charge two to four series connected

Lithium-ion cells, at up to 8A charge current. The ISL6258

has default settings for 2-cell systems and ISL6258A has

default settings for 3-cell systems. Integrated MOSFET

drivers and bootstrap diode result in fewer components and

smaller implementation area. Low offset current-sense

amplifiers provide high accuracy.

Features

• ±0.5% System Voltage Accuracy (-10°C to +100°C)

• ±3% Accurate Input Current Limit

• ±3% Accurate Battery Charge Current Limit

• Switching frequency can be reduced via SMBus for higher

efficiency at light load conditions

• Trickle Charge System for Deeply Discharged Batteries

- Automatic Trickle Charge Current (256mA)

- Holds Minimum Voltage to System

• SMBus 2 Wire Serial Interface

• Battery Short Circuit Protection

• Fast System-Load Transient Response

• Monitor Outputs

- Adapter Current (2.5% Accuracy)

- Battery Discharge Current (4% Accuracy)

- Trickle Charge Mode Indicator

- AC Adapter Present Indicator

The ISL6258, ISL6258A provide two open drain digital

outputs that indicate the presence of the AC adapter and

trickle charge state. Trickle charge state and AC adapter

present indicators are also available via SMBus. The

ISL6258, ISL6258A also provide two analog outputs that

indicate the adapter current and battery discharge current

with 4% accuracy.

• 11-Bit Max System Voltage Setting

• 7-Bit Min System Voltage Setting

• 6-Bit Charge Current Setting

• 6-Bit Adapter Current Setting

• Over 8A Battery Charger Current

• Over 8A Maximum Adapter Current

• +8V to +22V Adapter Voltage Range

• Pb-Free (RoHS Compliant)

Pinout

ISL6258, ISL6258A

(28 LD TQFN)

TOP VIEW

Applications

• Notebook Computers

28 27 26 25 24 23 22

AGATE

DCIN

LGATE

VDDP

VDD

• Tablet PCs

• Portable Equipment with Rechargeable Batteries

ACIN

VREF

CSOP

ICOMP

AGND

VCOMP

17 CSON

BGATE

BMON

9 10 11 12 13 14

FN6571 Rev 1.00

December 11, 2007

Page 1 of 2

中文翻译

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ISL6260CIRZ	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6 Mobile CPUs
ISL6260CIRZ-T	INTERSIL	获取价格	Multiphase PWM Regulator for IMVP-6 Mobile CPUs
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