ISL6292D Datasheet, PDF (1/13 Pages) Intersil Corporation – Li-ion/Li Polymer Battery Charger

®
Data Sheet
July 2004
ISL6292D
FN9166
Li-ion/Li Polymer Battery Charger
The ISL6292D 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 ISL6292D 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 up to 2A. The ISL6292D
can also work with a current-limited adapter to minimize the
thermal dissipation, in which case the ISL6292D combines
the benefits of both a linear charger and a pulse charger.
The ISL6292D 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 package.
Ordering Information
PART #
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL6292DCR4
-20 to 70 16 Ld 4x4 QFN
L16.4x4
ISL6292DCR4-T 16 Ld 4x4 QFN Tape and Reel
ISL6292DCRZ
(Note)
-20 to 70 16 Ld 4x4 QFN (Pb-free) L16.4x4
ISL6292DCRZ-T 16 Ld 4x4 QFN Tape and Reel (Pb-free)
(Note)
NOTE: Intersil Pb-free products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin
plate termination finish, which is 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-020B.
Pinout
ISL6292D (16 LEAD QFN)
TOP VIEW
16 15 14 13
VIN 1
12 VBAT
STAT2 2
11 TEMP
STAT1 3
10 IMIN
TIME 4
9 IREF
5678
Features
• Complete Charger for Single-Cell Li-ion Batteries
• Integrated Pass Element and Current Sensor
• No External Blocking Diode Required
• Very Low Thermal Dissipation
• Two-Speed Blinking Indication at Fault Conditions
• 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
• QFN Package:
- Compliant to JEDEC PUB95 MO-220
QFN - Quad Flat No Leads - Package Outline
- Near Chip Scale Package footprint, which improves
PCB efficiency and has a thinner profile
• Pb-free Available
Applications
• 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
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”
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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