参数资料
型号: ISL6294IBZ-T
厂商: Intersil
文件页数: 1/9页
文件大小: 0K
描述: IC CHRGR LI-ION SGL 8-SOIC
标准包装: 2,500
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.5 V ~ 6.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
?
ISL6294
Data Sheet
July 9, 2007
FN9174.4
High Input Voltage Charger
The ISL6294 is a cost-effective, fully integrated high input
voltage single-cell Li-ion battery charger. The charger uses a
CC/CV charge profile required by Li-ion batteries. The
charger accepts an input voltage up to 28V but is disabled
when the input voltage exceeds the OVP threshold, typically
6.8V, to prevent excessive power dissipation. The 28V rating
eliminates the overvoltage protection circuit required in a low
input voltage charger.
The charge current and the end-of-charge (EOC) current are
programmable with external resistors. When the battery voltage
is lower than typically 2.55V, the charger preconditions the
battery with typically 20% of the programmed charge current.
When the charge current reduces to the programmable EOC
current level during the CV charge phase, an EOC indication is
provided by the CHG pin, which is an open-drain output. An
internal thermal foldback function protects the charger from any
thermal failure.
Two indication pins (PPR and CHG) allow simple interface to
a microprocessor or LEDs. When no adapter is attached or
when disabled, the charger draws less than 1μA leakage
current from the battery.
Ordering Information
PART
Features
? Complete Charger for Single-Cell Li-ion/Polymer Batteries
? Integrated Pass Element and Current Sensor
? No External Blocking Diode Required
? Low Component Count and Cost
? 1% Voltage Accuracy
? Programmable Charge Current
? Programmable End-of-Charge Current
? Charge Current Thermal Foldback for Thermal
Protection
? Trickle Charge for Fully Discharged Batteries
? 28V Maximum Voltage for the Power Input
? Power Presence and Charge Indications
? Less Than 1μA Leakage Current off the Battery When No
Input Power Attached or Charger Disabled
? Ambient Temperature Range: -40°C to +85°C
? 8 Ld 2x3 DFN and 8 Ld SOIC Packages
? Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
NUMBER
PART
TEMP.
PACKAGE
PKG.
? Mobile Phones
(Note)
MARKING RANGE (°C)
(Pb-free)
DWG. #
? Blue-Tooth Devices
ISL6294IRZ-T 94Z
-40 to +85
8 Ld 2x3 DFN L8.2x3
? PDAs
ISL6294IBZ
6294 IBZ
-40 to +85
8 Ld SOIC
M8.15
? MP3 Players
ISL6294IBZ-T 6294 IBZ
-40 to +85
8 Ld SOIC
M8.15
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.
Pinouts
ISL6294
(8 LD SOIC)
TOP VIEW
? Stand-Alone Chargers
? Other Handheld Devices
ISL6294
(8 LD DFN)
TOP VIEW
VIN 1
8
BAT
VIN
1
8
BAT
PPR 2
7 IREF
PPR
2
7
IREF
CHG 3
EN 4
6
5
IMIN
GND
CHG
EN
3
4
6
5
IMIN
GND
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, 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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