Datasheet > ISL9221

ISL9221

更新时间： 2024-11-13 11:13:07

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池
页数	文件大小	规格书
11页	239K
描述
Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO

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ISL9221 数据手册

ISL9221

Data Sheet

April 3, 2008

FN6541.1

Dual Input Lithium Ion Battery Charger

with OVP USB Bypass and 10mA LDO

Features

• Lithium Ion/Polymer battery charging

• Dual input - USB host or car/wall adapter

• Input voltage withstanding up to 28V

The ISL9221 Lithium Ion charging IC is designed to meet the

charging requirements of most of today’s handheld devices.

The IC provides two inputs for either USB connection where

the current is limited by the USB standard or for

• 5.4V overvoltage protection on VUSB inputs

• Charging current up to 1.2A

powering/charging from a power adapter.

If the voltage at either VUSB or VDC pin is within the safe

allowable range, the PPR pin is pulled low indicating to the

system processor that external power is available.

• 4.9V/10mA linear regulator with input OVP

• Current limit on bypass path

• Programmable end-of-charge current

• Programmable charging current

• Programmable USB current limit

• Charging and power present indicator pins

• Charge enable pin

Charging can be enabled/disabled by controlling the state of

the EN pin. While charging, the CHG pin is pulled low

indicating the battery is being charged.

The battery is charged to 4.2V with only a 1% error across

the temperature range. USB charge current, Adapter charge

current and charge termination currents can be programmed

via external resistors.

• Reverse current protection

The ISL9221 adds an additional feature in providing a limited

amount of current to system architecture while protecting the

system from destructively high voltage.

• Pb-free (RoHS compliant)

Applications

The device contains Thermal regulation and protection to

provide additional safety features of this device. When the

temperature exceeds +125°C, the current will fold back to

reduce and control the die temperature.

• Smart Handheld Devices

• Cell Phones, PDAs, MP3 Players

• Digital Still Cameras

• Handheld Test Equipment

Ordering Information

PART

NUMBER

(Note)

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

PART

TEMP.

PACKAGE

(Pb-Free)

PKG.

DWG. #

MARKING RANGE (°C)

ISL9221IRZ

9221

-40°C to +85°C 12 Ld 4x3 DFN L12.4x3

ISL9221IRZ-T* 9221

• Technical Brief TB389 “PCB Land Pattern Design and

Surface Mount Guidelines for QFN Packages”

*Please refer to TB347 for details on reel specifications.

NOTE: These Intersil Pb-free plastic packaged products employ

special Pb-free material sets; molding compounds/die attach materials

and 100% matte tin plate PLUS ANNEAL - e3 termination finish, which

is 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

ISL9221

(12 LD DFN)

TOP VIEW

VDC

VUSB

PPR

CHG

12 VDC_LDO

BAT

USB_BYP

IVDC

GND

IMIN

IUSB

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.

12 3 4 5 6 7...11

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与ISL9221相关器件

型号	品牌	获取价格	描述	数据表
ISL9221IRZ	INTERSIL	获取价格	Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO
ISL9221IRZ-T	INTERSIL	获取价格	Dual Input Lithium Ion Battery Charger with OVP USB Bypass and 10mA LDO
ISL9221IRZ-T13	RENESAS	获取价格	POWER SUPPLY SUPPORT CKT
ISL9222	INTERSIL	获取价格	High Input Voltage Charger
ISL9222A	INTERSIL	获取价格	High Input Voltage Charger Low Component Count and Cost
ISL9222AIRTZ-T	INTERSIL	获取价格	High Input Voltage Charger Low Component Count and Cost
ISL9222IRTZ-T	INTERSIL	获取价格	High Input Voltage Charger
ISL9228	INTERSIL	获取价格	Dual Input Li-ion/Li-Polymer Battery Charger With Battery Removal Detection
ISL9228IRZ	INTERSIL	获取价格	Dual Input Li-ion/Li-Polymer Battery Charger With Battery Removal Detection
ISL9228IRZ-T	INTERSIL	获取价格	Dual Input Li-ion/Li-Polymer Battery Charger With Battery Removal Detection

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