Datasheet > ISL9228IRZ

ISL9228IRZ

更新时间： 2024-11-13 05:39:47

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池光电二极管
页数	文件大小	规格书
11页	176K
描述
Dual Input Li-ion/Li-Polymer Battery Charger With Battery Removal Detection

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ISL9228IRZ 数据手册

ISL9228

Data Sheet

February 13, 2009

FN6687.0

Dual Input Li-ion/Li-Polymer Battery

Features

Charger With Battery Removal Detection

• Complete Charger for Single-Cell Li-ion/Polymer Batteries

• Dual Input Power Sources for Cradle and USB

• Battery Removal Detection

The ISL9228 is a fully integrated low-cost single-cell Li-ion or

Li-polymer battery charger. The charger accepts two power

inputs, normally one from a USB (Universal Serial Bus) port

and the other from a desktop cradle. The ISL9228 is an ideal

charger for smart handheld devices that need to

• Integrated Pass Elements

• Fixed 380mA USB Charge Current

communicate with a personal computer via USB.

• Programmable Cradle Charge Current

The ISL9228 features 28V maximum voltages for both the

cradle and the USB inputs. Due to the 28V rated inputs, low-

cost, large output tolerance adapters can be used safely.

The 28V rating eliminates the over voltage protection circuit

required in a low input voltage charger.

• Charge Current Thermaguard™ for Thermal

Protection

• 28V Maximum Voltages for Cradle and USB Inputs

• 1% Constant Voltage Accuracy

When both inputs are powered, the cradle input is used to

charge the battery. The charge current is programmable for

the cradle input with a small resistor. The end-of-charge

current is also programmable by another external resistor.

The charger incorporates Thermaguard™ which protects the

IC against over temperature. If the die temperature rises

above a typical value of +125°C, a thermal foldback function

reduces the charge current automatically to prevent further

temperature rise. The charger has two indication pins. The

PPR (power present) pin outputs an open-drain logic LOW

when either the cradle or the USB input power is attached.

The CHG (charge) pin is also an open-drain output that

indicates a logic LOW when the charge current is above a

minimum current level. When the charge current is below the

preset minimum current, the CHG pin will turn to logic high to

indicate the end-of-charge condition.

• Adapter Presence and Charge Indications

• Less than 0.5µA Leakage Current off the Battery when No

Input Power Attached

• Programmable End-of-Charge Current

• Ambient Temperature Range: -40°C to +85°C

• No External Blocking Diode Required

• Pb-Free (RoHS Compliant)

Applications

• Smart Handheld Devices

• Cell Phones, PDAs, MP3 Players

• Digital Still Cameras

• Handheld Test Equipment

Ordering Information

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

PART

NUMBER

(Note)

TEMP.

RANGE

(°C)

PART

MARKING

PACKAGE

(Pb-free)

PKG.

DWG. #

ISL9228IRZ

9228

-40 to +85 10 Ld 3x3 DFN L10.3x3C

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN Packages”

ISL9228IRZ-T 9228

-40 to +85 10 Ld 3x3 DFN L10.3x3C

Tape and Reel

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100%

matte tin plate termination finish, which are RoHS compliant and

compatible with both SnPb and Pb-free soldering operations. Intersil

Pb-free products are MSL classified at Pb-free peak reflow

temperatures that meet or exceed the Pb-free requirements of

IPC/JEDEC J STD-020.

Pinout

ISL9228

(10 LD DFN)

TOP VIEW

CRDL

USB

PPR

CHG

BAT

ICDL

GND

IMIN

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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ISL9228IRZ 替代型号

型号	品牌	替代类型	描述	数据表
ISL6294AIRZ-T	INTERSIL	完全替代	High Input Voltage Charger
ISL6294IBZ	INTERSIL	类似代替	High Input Voltage Charger
ISL6294IBZ-T	INTERSIL	功能相似	High Input Voltage Charger

与ISL9228IRZ相关器件

型号	品牌	获取价格	描述	数据表
ISL9228IRZ-T	INTERSIL	获取价格	Dual Input Li-ion/Li-Polymer Battery Charger With Battery Removal Detection
ISL9230	INTERSIL	获取价格	High Power Li-Ion Charger W/I-Path Management
ISL9230_1107	INTERSIL	获取价格	High Power Li-Ion Charger W/I-Path Management
ISL9230IRZ	INTERSIL	获取价格	High Power Li-Ion Charger W/I-Path Management
ISL9230IRZ	RENESAS	获取价格	High Power Li-Ion Charger W/I-Path Management; QFN16; Temp Range: -40° to 85&d
ISL9230IRZ-T	RENESAS	获取价格	High Power Li-Ion Charger W/I-Path Management; QFN16; Temp Range: -40° to 85&d
ISL9230IRZ-T13	RENESAS	获取价格	Power Supply Support Circuit
ISL9230IRZ-T7	RENESAS	获取价格	Power Supply Support Circuit
ISL9237	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG
ISL9237EVAL2Z	RENESAS	获取价格	Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG

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