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ISL6292BCR-T PDF预览

ISL6292BCR-T

更新时间: 2024-11-12 22:39:31
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英特矽尔 - INTERSIL 电池
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12页 286K
描述
Li-ion/Li Polymer Battery Charger

ISL6292BCR-T 数据手册

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ISL6292B  
®
Datasheet  
April 19, 2005  
FN9139 .1  
Li-ion/Li Polymer Battery Charger  
Features  
The ISL6292B uses Intersil’s patent-pending dual-mode  
charge technology to minimize the heat in a linear charger.  
The ISL6292B is a modification of the original ISL6292 and  
is optimized for cellular phone travel charger applications.  
The low-heat generation feature of the dual-mode charger  
enables the charger IC to be placed inside the connector of  
the travel charger to completely remove the influence of the  
adapter cable on the charging performance.  
• Complete Charger for Single-Cell Li-ion Batteries  
• Integrated Pass Element and Current Sensor  
• No External Blocking Diode Required  
• Very Low Thermal Dual-Mode Operation  
• 1% Voltage Accuracy with Remote Sense  
• Programmable Current Limit up to 1.5A  
• Programmable End-of-Charge Current  
• Programmable Safety Timer  
Working with a current-limited ac/dc converter, the dual-  
mode charger charges a Li-ion battery with the same current  
profile as a traditional linear charger. The constant charge  
current is determined by the current limit of the ac/dc  
converter. The constant output voltage is fixed at 4.2V. When  
the battery voltage is below 2.8V, the charger preconditions  
the battery with a low trickle-charge current. The charge  
status is indicated by a tri-color LED. A safety timer prevents  
charging a dead battery for an excessively long period.  
• Drives a Tri-Color LED  
• Charge Current Thermal Foldback  
• NTC Thermistor Interface for Battery Temperature Monitor  
• Two-Level Ambient Temperature Setting  
• 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  
The ISL6292B also features a thermal foldback function that  
automatically reduces the charge current when the internal  
die temperature exceeds a 100°C limit to prevent further  
temperature rise. This function removes the concern of  
thermal failure in the targeted space-limited applications. An  
ambient temperature monitoring circuit allows users to set  
two separate temperature limit levels, one for during charge  
and one for not during charge. The thermally-enhanced QFN  
package further improves the thermal performance of the  
ISL6292B in space-limited applications.  
• Pb-Free Available (RoHS Compliant)  
Ordering Information  
PART NUMBER  
TEMP. RANGE (°C)  
-20 to 70  
PKG. DWG. #  
16 Ld 4x4 QFN  
Applications  
ISL6292BCR*  
ISL6292BCRZ* (Note)  
• Handheld Devices including Medical Handhelds  
• PDAs, Cell Phones and Smart Phones  
• Portable Instruments, MP3 Players  
• Self-Charging Battery Packs  
• Stand-Alone Chargers  
-20 to 70  
16 Ld 4x4 QFN  
(Pb-free)  
*Add “-T” suffix for tape and reel.  
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.  
• USB Bus-Powered Chargers  
Related Literature  
Pinout  
ISL6292B TOP VIEW  
Technical Brief TB363 “Guidelines for Handling and  
Processing Moisture Sensitive Surface Mount Devices  
(SMDs)”  
16 15 14 13  
VIN  
GRN  
RED  
TIME  
1
2
3
4
12 VSEN  
11 TEMP  
10 IMIN  
Technical Brief TB379 “Thermal Characterization of  
Packaged Semiconductor Devices”  
Technical Brief TB389 “PCB Land Pattern Design and  
Surface Mount Guidelines for QFN Packages”  
9
IREF  
5
6
7
8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright Intersil Americas Inc. 2004, 2005. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  

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