ISL6292
®
FN9105.2
Data Sheet
November 2003
Li-ion/Li Polymer Battery Charger
Features
The ISL6292 is an integrated single-cell Li-ion or Li- polymer
battery charger capable of operating with an input voltage as
low as 2.4V. This charger is designed to work with various
types of ac adapters or a USB port.
• Complete Charger for Single-Cell Li-ion Batteries
• Very Low Thermal Dissipation
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• 1% Voltage Accuracy
The ISL6292 operates as a linear charger when the ac
adapter is a voltage source. The battery is charged in a
CC/CV (constant current/constant voltage) profile. The
charge current is programmable with an external resistor up
to 2A. The ISL6292 can also work with a current-limited
adapter to minimize the thermal dissipation, in which case
the ISL6292 combines the benefits of both a linear charger
and a pulse charger.
• Programmable Current Limit up to 2A
• Programmable End-of-Charge Current
• Charge Current Thermal Foldback
• NTC Thermistor Interface for Battery Temperature Monitor
• Accepts Multiple Types of Adapters or USB BUS
Power
• Guaranteed to Operate at 2.65V After Start Up
• Ambient Temperature Range: -20oC to 70oC
• Thermally-Enhanced QFN Packages
The ISL6292 features charge current thermal foldback to
guarantee safe operation when the printed circuit board is
space limited for thermal dissipation. Additional features
include preconditioning of an over-discharged battery, an
NTC thermistor interface for charging the battery in a safe
temperature range, automatic recharge, and thermally
enhanced QFN or DFN packages.
• Lead-Free Package Option Available ("Z" suffix)
Applications
• Handheld Devices including Medical Handhelds
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Self-Charging Battery Packs
Ordering Information
PKG.
DWG. #
o
PART # (NOTE) TEMP. RANGE ( C) PACKAGE
• Stand-Alone Chargers
ISL6292-1CR3 -20 to 70
10 Ld 3x3 DFN L10.3x3
ISL6292-1CR3-T 10 Ld 3x3 DFN Tape and Reel
ISL6292-2CR3 -20 to 70 10 Ld 3x3 DFN L10.3x3
ISL6292-2CR3-T 10 Ld 3x3 DFN Tape and Reel
ISL6292-1CR4 -20 to 70 16 Ld 4x4 QFN L16.4x4
ISL6292-1CR4-T 16 Ld 4x4 QFN Tape and Reel
ISL6292-2CR4 -20 to 70 16 Ld 4x4 QFN L16.4x4
ISL6292-2CR4-T 16 Ld 4x4 QFN Tape and Reel
ISL6292-1CR5 -20 to 70 16 Ld 5x5 QFN L16.5x5B
ISL6292-1CR5-T 16 Ld 5x5 QFN Tape and Reel
ISL6292-2CR5 -20 to 70 16 Ld 5x5 QFN L16.5x5B
• USB Bus-Powered Chargers
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Technical Brief TB379 “Thermal Characterization of
Packaged Semiconductor Devices”
• Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Pinouts
ISL6292 (16 LEAD QFN)
ISL6292 (10 LEAD DFN)
TOP VIEW
TOP VIEW
ISL6292-2CR5-T 16 Ld 5x5 QFN Tape and Reel
VIN
1
10 VBAT
16 15 14 13
ISL6292EVAL1 Evaluation Board for the 3x3 DFN Package Part.
ISL6292EVAL2 Evaluation Board for the 4x4 QFN Package Part.
FAULT
STATUS
TIME
2
3
4
5
9
8
7
6
TEMP
IREF
V2P8
EN
VIN
FAULT
STATUS
TIME
1
2
3
4
12 VBAT
11 TEMP
10 IMIN
NOTE: " Z " Suffix: Intersil Lead Free products employ special lead
free material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which is compatible with both SnPb
and lead free soldering operations. Intersil Lead Free products are
MSL classified at lead free peak reflow temperatures that meet or
exceed the lead free requirements of IPC/JEDEC J Std-020B.
Add a “Z” to the end of the part # above for lead-free packages, e.g.,
“ISL6292-1CR3-TZ” is the part # for the lead-free ISL6292-1CR3-T.
GND
9
IREF
5
6
7
8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved.
1
All other trademarks mentioned are the property of their respective owners.
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