1

®

FN9207.0

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

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ISL9204

High Input Voltage Charger

The ISL9204 is a cost-effective, fully integrated high input

voltage single-cell Li-ion battery charger. This charger

performs the CC/CV charge function 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, minimum 10V, to prevent excessive power

dissipation. The 28V rating eliminates the overvoltage

protection circuit required in a low input voltage charger.

The charge current and the end-of-charge (EOC) current are

programmable with external resistors. When the battery

voltage is lower than a typical value of 2.8V, the charger

preconditions the battery with typically 17% of the

programmed charge current. When the charge current

reduces to the programmable EOC current level during the

CV charge phase, an EOC indication is provided by the CHG

pin, which is an open-drain output. An internal thermal

foldback function protects the charger from any thermal

failure.

Two indication pins (PPR and CHG) allow simple interface to

a microprocessor or LEDs. When no adapter is attached or

when disabled, the charger draws less than 1

µA 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

• Programmable End-of-Charge Current

• Charge Current Thermal Foldback for Thermal

Protection

• Trickle Charge for Fully Discharged Batteries

• 28V Maximum Voltage for the Power Input

• Power Presence and Charge Indications

• Less than 1

µA Leakage Current Off the Battery when No

Input Power Attached or Charger Disabled

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

• 2x3 DFN 8 Ld Packages

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Mobile Phones

• Blue-Tooth Devices

•PDAs

• MP3 Players

• Stand-alone Chargers

• Other Handheld Devices

Pinout

ISL9204

(8 LD 2x3 DFN)

TOP VIEW

Ordering Information

PART

NUMBER

PART

MARKING

TEMP.

RANGE (°C)

PACKAGE

PKG.

DWG. #

ISL9204IRZ-T

(Note)

04Z

-40 to 85

8 Ld 2x3 DFN

Tape and Reel

(Pb-free)

L8.2x3

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.

VIN

PPR

CHG

EN

BAT

IREF

IMIN

GND

2

3

4

1

7

6

5

8

Data Sheet

October 4, 2005