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. 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. 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.

特性

  • Complete charger for single-cell Lithium chemistry batteries
  • Integrated power transistor and current sensor
  • Reverse battery leakage 700nA
  • 1% initial voltage accuracy
  • 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
  • Guaranteed to operate down to 2.65V after start-up
  • Ambient temperature range: -40°C to +85°C
  • AEC-Q100 qualified

tune产品选择

器件号 Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability
Active DFN Reel 250
Availability

description文档

文档标题 language 类型 文档格式 文件大小 日期
数据手册与勘误表
star ISL78692 Datasheet 数据手册 PDF 1.04 MB
使用指南与说明
ISL78692EVAL1Z User Guide 手册 - 开发工具 PDF 929 KB
应用指南 & 白皮书
Selecting the Right Battery Chemistry for Automotive Safety Applications 白皮书 PDF 158 KB
AN1681: Grounding Techniques 应用文档 PDF 509 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB
PCN / PDN
PCN16004 - Wafer Fabrication Site Change for Listed Intersil Products 产品变更通告 PDF 264 KB
其他
TB363: Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) 其他 PDF 293 KB
TB379: Thermal Characterization of Packaged Semiconductor Devices 其他 PDF 653 KB

file_download下载

文档标题 language 类型 文档格式 文件大小 日期
Hardware
ISL78692EVAL1Z Design Files PCB设计文档 ZIP 833 KB

memory开发板与套件

器件号 文档标题 类型 Company
ISL78692EVAL1Z Automotive Li-Ion/Li Polymer Battery Charger Evaluation Board 评估 Renesas