Datasheet > ISL6256HRZ

ISL6256HRZ

更新时间： 2024-11-13 04:58:39

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池电脑
页数	文件大小	规格书
27页	653K
描述
Highly Integrated Battery Charger with Automatic Power Source Selector for Notebook Computers

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ISL6256HRZ 数据手册

ISL6256, ISL6256A

Data Sheet

July 19, 2007

FN6499.1

Highly Integrated Battery Charger with

Automatic Power Source Selector for

Notebook Computers

Features

• ±0.5% Charge Voltage Accuracy (-10°C to +100°C)

• ±3% Accurate Input Current Limit

The ISL6256, ISL6256A 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.

• ±3% Accurate Battery Charge Current Limit

• ±25% Accurate Battery Trickle Charge Current Limit

• Programmable Charge Current Limit, Adapter Current

Limit and Charge Voltage

• Fixed 300kHz PWM Synchronous Buck Controller with

Diode Emulation at Light Load

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

ISL6256, ISL6256A provides outputs that are used to monitor

the current drawn from the AC adapter, and monitor for the

presence of an AC adapter. The ISL6256, ISL6256A

automatically transitions from regulating current mode to

regulating voltage mode.

• Overvoltage Protection

• 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

ISL6256, ISL6256A 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.

• DC Adapter Present Indicator

• Battery Discharge MOSFET Control

• Less than 10µA Battery Leakage Current

• Supports Pulse Charging

• Pb-Free Plus Anneal Available (RoHS Compliant)

Ordering Information

PART

NUMBER

(Notes 1, 2)

TEMP

RANGE

(°C)

Applications

PART

MARKING

PACKAGE

(Pb-free)

PKG.

DWG. #

• Notebook, Desknote and Sub-notebook Computers

• Personal Digital Assistant

ISL6256HRZ* ISL 6256HRZ

ISL6256HAZ* ISL 6256HAZ

-10 to +100 28 Ld 5x5 QFN L28.5×5

-10 to +100 28 Ld QSOP M28.15

ISL6256AHRZ* ISL6256 AHRZ -10 to +100 28 Ld 5x5 QFN L28.5×5

ISL6256AHAZ* ISL6256 AHAZ -10 to +100 28 Ld QSOP 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. 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.

All other trademarks mentioned are the property of their respective owners.

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与ISL6256HRZ相关器件

型号	品牌	获取价格	描述	数据表
ISL6257	INTERSIL	获取价格	Highly Integrated Narrow VDC Battery Charger for Notebook Computers
ISL6257HRZ	INTERSIL	获取价格	Highly Integrated Narrow VDC Battery Charger for Notebook Computers
ISL6257HRZ-T	INTERSIL	获取价格	Highly Integrated Narrow VDC Battery Charger for Notebook Computers
ISL6258	RENESAS	获取价格	Narrow VDC Regulator/Charger with SMBus Interface
ISL6258A	RENESAS	获取价格	Narrow VDC Regulator/Charger with SMBus Interface
ISL6260	ISC	获取价格	The ISL6260 and ISL6260B provide microprocessor core voltage regulation by driving up to 3
ISL6260	INTERSIL	获取价格	Multiphase Core Regulator for IMVP-6 Mobile CPUs
ISL6260B	ISC	获取价格	The ISL6260 and ISL6260B provide microprocessor core voltage regulation by driving up to 3
ISL6260BCRZ	INTERSIL	获取价格	Multiphase Core Regulator for IMVP-6 Mobile CPUs
ISL6260BCRZ-T	INTERSIL	获取价格	Multiphase Core Regulator for IMVP-6 Mobile CPUs

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