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參數(shù)資料
| 型號： | ISL6255HRZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC28 |
| 封裝： | 5 X 5 MM, ROHS COMPLIANT, PLASTIC, MO-220VHHD-1, QFN-28 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 804K |
| 代理商： | ISL6255HRZ |
1
FN9203.1
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
All other trademarks mentioned are the property of their respective owners.
ISL6255, ISL6255A
Highly Integrated Battery Charger with
Automatic Power Source Selector for
Notebook Computers
The ISL6255, ISL6255A is a highly integrated battery charger
controller for Li-Ion/Li-Ion polymer batteries. High Efficiency is
achieved by a synchronous buck topology and the use of a
MOSFET, instead of a diode, for selecting power from the
adapter or battery. The low side MOSFET emulates a diode at
light loads to improve the light load efficiency and prevent
system bus boosting.
The constant output voltage can be selected for 2, 3 and 4
series Li-Ion cells with 0.5% accuracy over temperature. It can
also be programmed between 4.2V+5%/cell and
4.2V-5%/cell to optimize battery capacity. When supplying the
load and battery charger simultaneously, the input current limit
for the AC adapter is programmable to within 3% accuracy to
avoid overloading the AC adapter, and to allow the system to
make efficient use of available adapter power for charging. It
also has a wide range of programmable charging current. The
ISL6255, ISL6255A provides outputs that are used to monitor
the current drawn from the AC adapter, and monitor for the
presence of an AC adapter. The ISL6255, ISL6255A
automatically transitions from regulating current mode to
regulating voltage mode.
ISL6255, ISL6255A has a feature for automatic power source
selection by switching to the battery when the AC adapter is
removed or switching to the AC adapter when the AC adapter
is available. It also provides a DC adapter monitor to support
aircraft power applications with the option of no battery
charging.
Features
±0.5% Charge Voltage Accuracy (-10°C to 100°C)
±3% Accurate Input Current Limit
±3% Accurate Battery Charge Current Limit
±25% Accurate Battery Trickle Charge Current Limit
(ISL6255A)
Programmable Charge Current Limit, Adapter Current
Limit and Charge Voltage
Fixed 300kHz PWM Synchronous Buck Controller with
Diode Emulation at Light Load
Output for Current Drawn from AC Adapter
AC Adapter Present Indicator
Fast Input Current Limit Response
Input Voltage Range 7V to 25V
Support 2, 3 and 4 Cells Battery Pack
Up to 17.64V Battery-Voltage Set Point
Control Adapter Power Source Select MOSFET
Thermal Shutdown
Aircraft Power Capable
DC Adapter Present Indicator
Battery Discharge MOSFET Control
Less than 10μA Battery Leakage Current
Support Pulse Charging
Charge Any Battery Chemistry: Li-Ion, NiCd, NiMH, etc
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Notebook, Desknote and Sub-notebook Computers
Personal Digital Assistant
Ordering Information
PART
NUMBER
TEMP
RANGE (°C)
PACKAGE
PKG.
DWG. #
ISL6255HRZ
(Notes 1, 2)
-10 to 100
28 Ld 5x5 QFN
(Pb-free)
L28.5
×
5
ISL6255HAZ
(Notes 1, 2)
-10 to 100
28 Ld QSOP
(Pb-free)
M28.15
ISL6255AHRZ
(Notes 1, 2)
-10 to 100
28 Ld 5x5 QFN
(Pb-free)
L28.5
×
5
ISL6255AHAZ
(Notes 1, 2)
-10 to 100
28 Ld QSOP
(Pb-free)
M28.15
NOTES:
1. 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.
2. Add “-T” for Tape and Reel.
Data Sheet
June 17, 2005
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| ISL6255HRZR5259 | 制造商:Intersil Corporation 功能描述:ISL6255 QFN PB-FREE (WISTRON V5P2 ONLY VERSION) - Rail/Tube |
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| ISL6256 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers |
| ISL6256A | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers |
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