Datasheet > ISL6251AHRZ-T

ISL6251AHRZ-T

更新时间： 2024-09-23 22:33:39

品牌	Logo	应用领域
英特矽尔 - INTERSIL		电池控制器
页数	文件大小	规格书
20页	591K
描述
Low Cost Multi-Chemistry Battery Charger Controller

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ISL6251AHRZ-T 数据手册

ISL6251, ISL6251A

Data Sheet

June 17, 2005

FN9202.1

Low Cost Multi-Chemistry Battery

Charger Controller

Features

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

The ISL6251, ISL6251A is a highly integrated battery

charger controller for Li-Ion/Li-Ion polymer batteries and

NiMH 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 Input Current Limit

• ±5% Accurate Battery Charge Current Limit

• ±25% Accurate Battery Trickle Charge Current Limit

(ISL6251A)

• 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 be also 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 ISL6251, ISL6251A

provides outputs that are used to monitor the current drawn

from the AC adapter, and monitor for the presence of an AC

adapter. The ISL6251, ISL6251A automatically transitions

from regulating current mode to regulating voltage mode.

• 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

• Thermal Shutdown

• Support Pulse Charging

• Less than 10µA Battery Leakage Current

• Charge Any Battery Chemistry: Li-Ion, NiCd, NiMH, etc.

• Pb-Free Plus Anneal Available (RoHS Compliant)

Ordering Information

PART

TEMP

PKG.

NUMBER

RANGE (°C)

PACKAGE

DWG. #

Applications

• Notebook, Desknote and Sub-notebook Computers

ISL6251HRZ

(Notes 1, 2)

-10 to 100 28 Ld 5x5 QFN L28.5×5

(Pb-free)

• Personal Digital Assistant

ISL6251HAZ

(Notes 1, 2)

-10 to 100 24 Ld QSOP

(Pb-free)

M24.15

ISL6251AHRZ

(Notes 1, 2)

-10 to 100 28 Ld 5x5 QFN L28.5×5

(Pb-free)

ISL6251AHAZ

(Notes 1, 2)

-10 to 100 24 Ld QSOP

(Pb-free)

M24.15

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.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or1-888-468-3774 | 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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ISL6251AHRZ-T 替代型号

型号	品牌	替代类型	描述	数据表
ISL6251HRZ	INTERSIL	完全替代	Low Cost Multi-Chemistry Battery Charger Controller
ISL6251AHRZ	INTERSIL	完全替代	Low Cost Multi-Chemistry Battery Charger Controller
ISL6251HRZ-T	INTERSIL	完全替代	Low Cost Multi-Chemistry Battery Charger Controller

与ISL6251AHRZ-T相关器件

型号	品牌	获取价格	描述	数据表
ISL6251AHRZ-T13	RENESAS	获取价格	POWER SUPPLY SUPPORT CKT
ISL6251AHRZ-T7	RENESAS	获取价格	POWER SUPPLY SUPPORT CKT
ISL6251HAZ	INTERSIL	获取价格	Low Cost Multi-Chemistry Battery Charger Controller
ISL6251HAZ-T	INTERSIL	获取价格	Low Cost Multi-Chemistry Battery Charger Controller
ISL6251HAZ-T13	RENESAS	获取价格	POWER SUPPLY SUPPORT CKT
ISL6251HAZ-T7	RENESAS	获取价格	POWER SUPPLY SUPPORT CKT
ISL6251HRZ	INTERSIL	获取价格	Low Cost Multi-Chemistry Battery Charger Controller
ISL6251HRZ-T	INTERSIL	获取价格	Low Cost Multi-Chemistry Battery Charger Controller
ISL6251HRZ-T13	RENESAS	获取价格	POWER SUPPLY SUPPORT CKT
ISL6251HRZ-T7	RENESAS	获取价格	POWER SUPPLY SUPPORT CKT

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