Intel INTERSIL ISL6252, ISL6252A Data Sheet
Summary
The ISL6252A is a highly integrated battery charger controller designed for reliable power management in Li-Ion/Li-Poly portable devices like notebooks and PDAs. This manual provides detailed specifications for this synchronous buck topology IC, highlighting advanced features such as high efficiency, programmable input current limits, and precise charge voltage accuracy across extreme temperatures. Essential for electrical engineers, it ensures optimal battery charging while providing robust protection against overvoltage and adapter misuse.
Page 1 Text Content
ISL6252, ISL6252A
July 19, 2007 FN6498.1Data Sheet
Highly Integrated Battery Charger Features Controller for Notebook Computers
±0.5% Charge Voltage Accuracy (-10°C to +100°C)
The ISL6252, ISL6252A is a highly integrated battery charger
±3% Accurate Input Current Limit
controller for Li-Ion/Li-Ion polymer batteries. High Efficiency is
achieved by a synchronous buck topology. The low side ±3% Accurate Battery Charge Current Limit
MOSFET emulates a diode at light loads to improve the light
±25% Accurate Battery Trickle Charge Current Limit
load efficiency and prevent system bus boosting.
Programmable Charge Current Limit, Adapter Current
The constant output voltage can be selected for 2, 3 and 4 Limit and Charge Voltage series Li-Ion cells with 0.5% accuracy over-temperature. It
Fixed 300k Hz PWM Synchronous Buck Controller with
can also be programmed between 4.2V + 5%/cell and
Diode Emulation at Light Load
4.2V - 5%/cell to optimize battery capacity. When supplying
the load and battery charger simultaneously, the input current Overvoltage Protection
limit for the AC adapter is programmable to within 3%
Output for Current Drawn from AC Adapter
accuracy to avoid overloading the AC adapter, and to allow
AC Adapter Present Indicator
the system to make efficient use of available adapter power for charging. It also has a wide range of programmable Fast Input Current Limit Response charging current. The ISL6252, ISL6252A provides outputs
Input Voltage Range 7V to 25V
that are used to monitor the current drawn from the AC adapter, and monitor for the presence of an AC adapter. The Support 2-, 3- and 4-Cells Battery Pack ISL6252, ISL6252A automatically transitions from regulating
Up to 17.64V Battery-Voltage Set Point
current mode to regulating voltage mode.
Thermal Shutdown
Ordering Information
Less than 10µA Battery Leakage Current
PART TEMP
Supports Pulse Charging
NUMBER PART RANGE PACKAGE PKG. (Notes 1, 2) MARKING (°C) (Pb-free) DWG. #
Pb-Free Plus Anneal Available (Ro HS Compliant)
ISL6252HRZ* ISL 6252HRZ -10 to +100 28 Ld 5x5 QFN L28.5×5
Applications
ISL6252HAZ* ISL 6252HAZ -10 to +100 24 Ld QSOP M24.15
Notebook, Desknote and Sub-notebook Computers
ISL6252AHRZ* ISL6252 AHRZ -10 to +100 28 Ld 5x5 QFN L28.5×5
ISL6252AHAZ* ISL6252 AHAZ -10 to +100 24 Ld QSOP M24.15 Personal Digital Assistant
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 Ro HS compliant and compatible with both Sn Pb 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. Please refer to TB347 for details on reel specifications.
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. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
Page Summary Contents For Intel INTERSIL ISL6252, ISL6252A Data Sheet
Manual Details
| Brand | Intel |
|---|---|
| Pages | 24 |
| File Size | 623.58 KB |
| Published | May 30, 2026 |
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Frequently Asked Questions
What is the supported input voltage range for this charger controller?
The ISL6252 supports an input voltage range of 7V to 25V.
Does the device automatically handle different battery configurations?
Yes, it automatically transitions between regulating current mode and voltage mode for 2-, 3-, and 4-Cell battery packs.
What important safety features are integrated into this charger?
It includes Overvoltage Protection, Thermal Shutdown functionality, and constant leakage current monitoring of less than 10µA.