ISL6292 Datasheet, PDF (1/19 Pages) Intersil Corporation – Li-ion/Li Polymer Battery Charger

®
Data Sheet
July 25, 2005
ISL6292
FN9105.6
Li-ion/Li Polymer Battery Charger
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.
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.
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.
Ordering Information
PKG. DWG.
PART # (NOTE) TEMP. RANGE (°C) PACKAGE
#
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
ISL6292-2CR5-T 16 Ld 5x5 QFN Tape and Reel
ISL6292EVAL1 Evaluation Board for the 3x3 DFN Package Part.
ISL6292EVAL2 Evaluation Board for the 4x4 QFN Package Part.
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.
Add a “Z” to the end of the part # above for lead-free packages, e.g.,
“ISL6292-1CR3Z-T” is the part # for the lead-free ISL6292-1CR3-T.
Features
• 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
• 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: -20°C to 70°C
• Thermally-Enhanced QFN Packages
• Handheld Devices including Medical Handhelds
• PDAs, Cell Phones and Smart Phones
• Portable Instruments, MP3 Players
• Self-Charging Battery Packs
• Stand-Alone Chargers
• USB Bus-Powered Chargers
• Pb-Free Plus Anneal Available (RoHS Compliant)
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)
TOP VIEW
ISL6292 (10 LEAD DFN)
TOP VIEW
VIN 1
16 15 14 13
FAULT 2
VIN 1
12 VBAT
STATUS 3
FAULT 2
11 TEMP
TIME 4
STATUS 3
10 IMIN
TIME 4
9 IREF
GND 5
5678
10 VBAT
9 TEMP
8 IREF
7 V2P8
6 EN
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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