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參數(shù)資料
| 型號(hào)： | ISL6291-2CR-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Li-ion/Li Polymer Linear Battery Charger |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC16 |
| 封裝： | 5 X 5 MM, THERMALLY ENHANCED, PLASTIC, MO-220VHHB, QFN-16 |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大?。?/td> | 357K |
| 代理商： | ISL6291-2CR-T |
1
FN9102.2
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. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
ISL6291
Li-ion/Li Polymer Linear Battery Charger
The ISL6291 provides a low-cost integrated charger solution
for single-cell Li-ion and Li Polymer rechargeable batteries.
No external pass element, current sensing resistor, or
reverse blocking diode is required with this solution.
The ISL6291 is a constant-current (CC)/constant-voltage
(CV) charger. The constant charge current is programmable
up to 2.0A with an external signal resistor. An internal
trimmed current-sense circuit guarantees 10% accuracy,
with no bulky external current-sense resistor. The constant
voltage is either 4.1V or 4.2V. The charger always
preconditions the battery with 1/10 of the programmed
charge current at the beginning of a charge cycle, until it
verifies that the battery can be fast-charged. A safety timer
prevents over-charging a dead battery. The charging
terminates as the charge current falls below the
programmed minimum current during the CV mode. The
charger automatically re-charges the battery when the
battery voltage drops below a recharge threshold. A simple
interface with an NTC thermistor avoids charging the battery
outside a programmable temperature window. A thermal-
foldback feature of the ISL6291 guarantees safe operation
when the printed circuit board space is limited for thermal
dissipation. The charger reduces the charge current
automatically, as the internal temperature rises above a
preset level, to prevent further temperature rise.
When the wall adapter is not present, the ISL6291 draws
less than 1
μ
A current from the battery. Two logic outputs
provide the charging status and fault information, and an
easy interface to system logic. A V2P8 pin outputs a 2.8V
reference voltage that can be used to bias other circuits, or
as an indication for the adapter presence.
The ISL6291 is packed in a thermally enhanced 5x5 QFN
package. See the Technical Brief TB389 given in the Related
Literature for more information related to the package.
Features
Integrated Linear Pass Element
Integrated Charge Current Sensor
No External Reverse Blocking Diode Required
1% Voltage Accuracy
Programmable Current Limit Up to 2.0A
Programmable End-of-Charge Current
Trickle Charge an Over Discharged Battery
Charge Current Thermal Foldback
Simple Interface for Low-Cost Thermistor
Accepts USB Bus Power
Ambient Temperature Range: -20°C to 70°C
Thermally-Enhanced 5x5 QFN Package (
θ
JA
= 33°C/W)
Pb-Free Available (RoHS Compliant)
Applications
Handheld Devices
Cell Phones
PDAs
Stand-Alone Chargers
USB Bus-Powered Chargers
Related Literature
Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Technical Brief TB389 “PCB Land Pattern Design and
Surface Mount Guidelines for QFN Packages”
Pinout
ISL6291 (QFN)
TOP VIEW
VIN
FAULT
STATUS
TIME
V
V
V
V
VBAT
TEMP
IMIN
IREF
T
G
E
V
1
3
4
15
16
14
13
2
12
10
9
11
6
5
7
8
Data Sheet
May 2, 2005
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL6291-2CRZ | Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-SOIC -40 to 85 |
| ISL6291-2CRZ-T | Octal D-Type Edge-Triggered Flip-Flops with 3-State Outputs 20-SOIC -40 to 85 |
| ISL6291EVAL1 | Li-ion/Li Polymer Linear Battery Charger |
| ISL6292(中文) | Li-ion/Li Polymer Battery Charger(鋰離子/鋰聚合物電池充電器) |
| ISL6292-1CR3 | Li-ion/Li Polymer Battery Charger |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6291-2CRTR5155 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Li-ion/Li Polymer Linear Battery Charger |
| ISL6291-2CRTR5155-T | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Li-ion/Li Polymer Linear Battery Charger |
| ISL6291-2CRZ | 功能描述:IC CHARGER LI-ION 4.2V 5X5 16QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| ISL6291-2CRZ-T | 功能描述:IC BATT CHRGR LI-ION 4.2V 16-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| ISL6291-2CRZTR5155 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Li-ion/Li Polymer Linear Battery Charger |
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