Datasheet > ISL9220IRTZ-T7A

ISL9220IRTZ-T7A

更新时间： 2024-11-14 01:09:03

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
15页	515K
描述
Switching Charger for 1-Cell and 2-Cell Li-ion Batteries

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ISL9220IRTZ-T7A 数据手册

Switching Charger for 1-Cell and 2-Cell Li-ion Batteries

ISL9220, ISL9220A

Features

The ISL9220, ISL9220A is a cost-effective and versatile battery

charger for 1-cell and 2-cell Li-ion and Li-Polymer based portable

applications.

• Highly Integrated Battery Charger IC

• Charges 1- and 2-Cell Li-ion or Li-Polymer Batteries

• Up to 2A Charge Current

The device features synchronous PWM technology, maximizing

power efficiency, thus minimizing charge time and heat. The

1.2MHz switching frequency allows use of small external

inductors and capacitors.

• Synchronous Buck Topology with Integrated Power FETs

• 1.2MHz Switching Frequency

• 0.5% Charge Voltage Accuracy

A simple charge current programming method is provided.

External resistors program the fast charge and end-of-charge

currents.

• Programmable Input Current Limit with One External Resistor

• Thermistor Interface for Battery Detection and Temperature

Qualified Charging

The two status outputs can be used to drive LEDs, or can be

connected to host processor.

• Two Status Outputs

A programmable charge timer provides the ability to detect

defective batteries, and provides a secondary method of

detecting charge termination.

• Programmable Charge Safety Timer

• Short-Circuit and Thermal Protection

• Small 4mmx4mm TQFN Package

• -40°C to +85°C Operating Temperature Range

A thermistor interface is provided for battery presence detection,

and for temperature qualified charging conditions.

Additional features include preconditioning of an over-discharged

battery, automatic recharge, and thermally enhanced QFN

package.

Related Literature

• TB363 “Guidelines for Handling and Processing Moisture

Sensitive Surface Mount Devices (SMDs)”

Applications

• PDAs and Smart Phones

• MP3 and Portable Media Players

• Handheld GPS Devices

• TB379 “Thermal Characterization of Packaged Semiconductor

Devices”

• TB389 “PCB Land Pattern Design and Surface Mount

Guidelines for QFN Packages”

• Digital Still Cameras

• AN1589, “ISL9220IRTZEVAL1Z (1-cell), ISL9220AIRTZEVAL1Z

(2-cell) Evaluation Board”

• Industrial Handheld Scanners

Pin Configuration

ISL9220, ISL9220A

(20 LD TQFN)

TOP VIEW

STAT2

PGND

AGND

ISET1

ISET2

PAD

(AGND)

VHI

VIN

February 16, 2012

FN6936.3

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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ISL9220IRTZ-T7A 替代型号

型号	品牌	替代类型	描述	数据表
ISL9220IRTZ-T	INTERSIL	完全替代	Switching Charger for 1-Cell and 2-Cell Li-ion Batteries

与ISL9220IRTZ-T7A相关器件

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