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參數(shù)資料
| 型號(hào)： | ISL6299AIRZ-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Li-ion/Li-Polymer Battery Charger Accepting Two Power Sources |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | LEAD FREE, 3 X 3 MM, PLASTIC, DFN-10 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 222K |
| 代理商： | ISL6299AIRZ-T |
1
FN9212.0
ISL6299A
Li-ion/Li-Polymer Battery Charger
Accepting Two Power Sources
The ISL6299A 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
ISL6299A is an ideal charger for smart handheld devices
that need to communicate with a personal computer via
USB.
The ISL6299A 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 recharge threshold
(~4.0V).
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
Protection
28V Maximum Voltage for the Cradle Input
Charge Indication
Adapter Presence Indication
Less than 0.5μA Leakage Current off the Battery when No
Input Power Attached
Programmable end-of-charge current with latch for Cradle
Input
Ambient Temperature Range: -40°C to 85°C
No External Blocking Diode Required
Pb-Free Plus Anneal 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
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Ordering Information
PART #
TEMP.
RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL6299AIRZ (Note)
-40 to 85
10 Ld 3x3 DFN
(Pb-free)
L10.3x3C
ISL6299AIRZ-T
(Note)
10 Ld 3x3 DFN Tape and Reel
(Pb-free)
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.
Pinout
ISL6299A (DFN)
TOP VIEW
2
3
4
1
5
9
8
7
10
6
BAT
ICDL
GND
USBON
IMIN
CRDL
USB
PPR
CHG
EN
Data Sheet
June 28, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2005. All Rights Reserved. Thermaguard is a trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
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