1

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FN6643.1

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

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Copyright Intersil Americas Inc. 2008. All Rights Reserved

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ISL9222

High Input Voltage Charger

The ISL9222 is a cost-effective, fully integrated high input

voltage single-cell Li-ion battery charger. The charger uses a

CC/CV charge profile required by Li-ion batteries. The

charger accepts an input voltage up to 28V but is disabled

when the input voltage exceeds the OVP threshold, typically

6.8V, to prevent excessive power dissipation. The 28V rating

eliminates the overvoltage protection circuit required in a low

input voltage charger.

The charge current is user programmable with an external

resistor. When the battery voltage is lower than typically

2.55V, the charger preconditions the battery with typically

20% of the programmed charge current. An internal thermal

foldback function protects the charger from any thermal

failure.

AN indication pin PPR allows simple interface to a

microprocessor or LED. When no adapter is attached or

when disabled, the charger draws less than 1µA leakage

current from the battery.

Features

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

• Integrated Pass Element and Current Sensor

• No External Blocking Diode Required

• Low Component Count and Cost

• 1% Voltage Accuracy

• Programmable Charge Current

• Charge Current Thermal Foldback for Thermal

Protection

• Trickle Charge for Fully Discharged Batteries

• 28V Maximum Voltage for the Power Input

• Power Presence Indication

• Less Than 1µA Leakage Current off the Battery When No

Input Power Attached or Charger Disabled

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

• 8 Ld 2x3 TDFN Package

• Auxiliary OR-gate For System Booting Logic

• Pb-Free (RoHS Compliant)

Applications

• Mobile Phones

• Blue-Tooth Devices

•PDAs

• MP3 Players

• Stand-Alone Chargers

• Other Handheld Devices

Pinout

ISL9222

(8 LD TDFN)

TOP VIEW

Ordering Information

PART

NUMBER

(Note)

PART

MARKING

TEMP.

RANGE (°C)

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL9222IRTZ-T 22Z

-40 to +85

8 Ld 2x3 TDFN

Tape and Reel

L8.2x3A

*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.

2

3

4

1

7

6

5

8

VIN

PPR

JIGON

EN

BAT

IREF

JIGIN

GND

Data Sheet

March 10, 2008