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ISL78692-1CR3Z-T7 PDF预览

ISL78692-1CR3Z-T7

更新时间： 2024-02-28 21:27:33
品牌 Logo 应用领域
瑞萨 - RENESAS 光电二极管
页数 文件大小 规格书
18页 638K
描述
POWER SUPPLY SUPPORT CKT

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中文翻译

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ISL78692-1CR3Z-T7 技术参数

生命周期：Unknown零件包装代码：DFN
针数：10Reach Compliance Code：compliant
Factory Lead Time：10 weeks风险等级：5.7
Base Number Matches：1

ISL78692-1CR3Z-T7 数据手册

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DATASHEET  
Li-ion/Li-Polymer Battery Charger  
ISL78692  
The ISL78692 is an integrated single-cell Li-ion or Li-polymer  
battery charger capable of operating with an input voltage  
as low as 2.65V (cold crank case). This charger is designed to  
work with various types of AC adapters or a USB port.  
Features  
• Complete charger for single-cell Lithium chemistry batteries  
• Integrated power transistor and current sensor  
• Reverse battery leakage 700nA  
• 1% initial voltage accuracy  
The ISL78692 operates as a linear charger when the AC  
adapter is a voltage source. The battery is charged in a CC/CV  
(constant current/constant voltage) profile. The charge current  
is programmable with an external resistor up to 1A. The  
ISL78692 can also work with a current-limited adapter to  
minimize the thermal dissipation.  
• Programmable CC current up to 1A  
• Charge current thermal foldback  
• NTC thermistor interface for battery temperature alert  
• Accepts CV and CC types of adapters or USB bus power  
• Preconditioning trickle charge  
The ISL78692 features charge current thermal foldback to  
guarantee safe operation when the printed circuit board’s  
thermal dissipation is limited due to space constraints.  
Additional features include preconditioning of an  
over-discharged battery, an NTC thermistor interface for  
charging the battery in a safe temperature range and  
automatic recharge. The device is specified for operation in  
ambient temperatures from -40°C to +85°C and is offered in  
a 3x3mm thermally enhanced DFN package.  
• Guaranteed to operate down to 2.65V after start-up  
• Ambient temperature range: -40°C to +85°C  
• AEC-Q100 qualified  
Applications  
• Automotive systems  
• eCall systems  
• Backup battery systems  
Related Literature  
• Technical Brief TB363 “Guidelines for Handling and  
Processing Moisture Sensitive Surface Mount Devices  
(SMDs)”  
• Technical Brief TB379 “Thermal Characterization of  
Packaged Semiconductor Devices”  
• UG001, “ISL78692EVAL1Z Evaluation Board User Guide”  
CONSTANT  
CURRENT  
MODE  
CONSTANT  
VOLTAGE  
MODE  
TRICKLE  
MODE  
INHIBIT  
BATTERY  
PACK  
ISL78692  
VIN  
INPUT VOLTAGE  
5V  
VIN  
V
BAT  
VCH  
R
1
BATTERY VOLTAGE  
C
C1  
10µF  
2
R
100k  
1
100k  
+
-
TEMP  
2x10µF  
FAULT  
STATUS  
EN  
R
1k  
1
VTRICKLE  
V2P8  
IREF  
R
160k  
1
EN  
C3  
ICHARGE  
TIME  
GND  
1µF  
CTIME  
15nF  
CHARGE CURRENT  
I
CHARGE/10  
TIMEOUT  
FIGURE 1. TYPICAL APPLICATION  
FIGURE 2. TYPICAL CHARGE CURVES USING A CONSTANT  
VOLTAGE ADAPTER  
September 10, 2014  
FN8692.0  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2014. All Rights Reserved  
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.  
All other trademarks mentioned are the property of their respective owners.  
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