ISL6299 Intersil Corporation, ISL6299 Datasheet

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ISL6299

Manufacturer Part Number
ISL6299
Description
Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources
Manufacturer
Intersil Corporation
Datasheet

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Li-ion/Li-Polymer Battery Charger
Accepting Two Power Sources
The ISL6299 is a fully integrated low-cost single-cell Li-ion or
Li-polymer battery charger. The charger accepts two power
inputs, normally one from a USB (Universal Serial Bus) port
and the other from a desktop cradle. The ISL6299 is an ideal
charger for smart handheld devices that need to
communicate with a personal computer via USB.
The ISL6299 features 28V and 7V maximum voltages for the
cradle and the USB inputs respectively. Due to the 28V
rating for the cradle input, low-cost, large output tolerance
adapters can be used safely. When both inputs are powered,
the cradle input is used to charge the battery. The charge
current is programmable for the cradle input with a small
resistor. The end-of-charge current for the cradle input is
also programmable by another external resistor. The charger
incorporates Thermaguard™ which protects the IC against
over temperature. If the die temperature rises above a
typical value of 100°C, a thermal foldback function reduces
the charge current automatically to prevent further
temperature rise. The charger preconditions the battery with
low current when the battery voltage is below 2.6V. The
charger has two indication pins. The PPR (power present)
pin outputs an open-drain logic LOW when either the cradle
or the USB input power is attached. The CHG (charge) pin is
also an open-drain output that indicates a logic LOW when
the charge current is above a minimum current level. When
the charge current is below the minimum current, the CHG
pin indicates a logic HIGH signal and the status is latched.
The latch will be reset at one of these events: (1) the part is
disabled and re-enabled; (2) the selected input source has
been removed and re-applied, (3) The USBON turns LOW,
or (4) The BAT pin voltage falls below the CV mode
threshold.
Ordering Information
ISL6299IRZ (Note)
ISL6299IRZ-T (Note)
Intersil Pb-free 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.
PART #
10 Ld 3x3 DFN Tape and Reel (Pb-free)
RANGE (°C)
-40 to 85
TEMP.
®
1
Data Sheet
10 Ld 3x3 DFN
(Pb-free)
PACKAGE
L10.3x3
DWG. #
Copyright Intersil Americas Inc. 2005. All Rights Reserved. Thermaguard is a trademark of Intersil Americas Inc.
PKG.
1-888-INTERSIL or 1-888-352-6832
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Complete Charger for Single-Cell Li-ion/Polymer Batteries
• Dual Input Power Sources for Cradle and USB
• Low Component Count
• Integrated Pass Element
• Fixed 380mA USB Charge Current
• Programmable Cradle Charge Current
• Charge Current Thermaguard™ for Thermal
• 28V Maximum Voltage for the Cradle Input
• Charge Indication
• Adapter Presence Indication
• Less than 0.5µA Leakage Current off the Battery when No
• Programmable end-of-charge current with latch for Cradle
• Ambient Temperature Range: -40°C to 85°C
• Pb-Free Available (RoHS Compliant)
Applications
• Smart Handheld Devices
• Cell Phones, PDAs, MP3 Players
• Digital Still Cameras
• Handheld Test Equipment
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
• Technical Brief TB389 “PCB Land Pattern Design and
Pinout
Protection
Input Power Attached
Input
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Surface Mount Guidelines for QFN Packages”
March 17, 2005
All other trademarks mentioned are the property of their respective owners.
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
CRDL
CHG
USB
PPR
EN
1
2
3
4
5
ISL6299 (DFN)
TOP VIEW
10
9
8
7
6
BAT
ICDL
GND
USBON
IMIN
ISL6299
FN9184.0

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ISL6299 Summary of contents

Page 1

... The ISL6299 is a fully integrated low-cost single-cell Li-ion or Li-polymer battery charger. The charger accepts two power inputs, normally one from a USB (Universal Serial Bus) port and the other from a desktop cradle. The ISL6299 is an ideal charger for smart handheld devices that need to communicate with a personal computer via USB. ...

Page 2

... Block Diagram CRDL USB TEMP MONITOR ICDL REFERENCE CURRENT CONTROL IMIN CPPR PPR CHG 2 ISL6299 CPPR I R USB CRDL BAT LBAT CONTROL BAT + REF ENA EN GND USBON March 17, 2005 FN9184.0 ...

Page 3

... Typical Applications A Simple Charger Accepting Power from Both a USB Port and a Desktop Cradle TO CRADLE CONNECTOR TO USB CONNECTOR Simple Charger with Programmable Charge Current and Wide Input Voltage Range TO CRADLE CONNECTOR 3 ISL6299 BAT R CRDL ICDL ON USB OFF USBON PPR ...

Page 4

... CRDL End-of-Charge Threshold USB Input Constant Charge Current (Note 6) USB Input Trickle Charge Current (Note 4) USB End-of-Charge Threshold 4 ISL6299 Thermal Information Thermal Resistance DFN Package (Notes Maximum Junction Temperature (Plastic Package 150°C Maximum Storage Temperature Range . . . . . . . . . . . -65°C to 150°C Maximum Lead Temperature (Soldering 10s 300° ...

Page 5

... ON when either the USB input voltage or the CRDL input voltage is above its POR level, regardless if the charger is enabled or disabled. Otherwise turns OFF. This pin provides a wake-up signal to a microprocessor when either the cradle or the USB power is connected. 5 ISL6299 SYMBOL TEST CONDITIONS V MIN T FOLD Pin Voltage = 0 ...

Page 6

... BAT pin. Description The ISL6299 is designed for a single-cell Li-ion or Li-polymer battery charging circuit that accepts both a USB port and a desktop cradle as its power source. While the charge current from the USB input source is fixed at 380mA, the charge current from the cradle input is programmable between 0 ...

Page 7

... Regardless of the CHG pin status, however, the charger does not turn off as long as an input power source is attached. 7 ISL6299 Power Presence Indication When either the USB or the cradle input voltage is above the POR threshold, the PPR pin internal open-drain MOSFET turns on indicating the presence of input power. ...

Page 8

... However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 8 ISL6299 2X L10.3x3 0.15 ...

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