RT9527J数据手册Richtek中文资料规格书

描述 Description

The RT9527J/JH/JA is a low-cost single-cell Li-ion battery charger for low charge current applications.The RT9527J/JH/JA can be powered via an AC adapter or USB port and enters sleep mode when power is removed. It uses a control algorithm to optimize charging, featuring pre-charge, fast-charge, and constant voltage modes. The device maintains the battery in a fully charged condition by consistently operating in constant voltage mode. Charge current can be adjusted with an external resistor. Internal thermal feedback regulates the die temperature to optimize charge rates under varying ambient conditions. The device supports a maximum VIN of 28V and features both undervoltage and overvoltage protection for the AC adapter input.The RT9527J/JH/JA is available in the WDFN-8L 2x2 package. The recommended junction temperature range is -40°C to 125°C, and the ambient temperature range is -40°C to 85°C.

特性 Features

28V Maximum Rating for AC Adapter
Internal Integrated Power FETs
Adjustable Charging Current
Programmable Safe Charge Timer
NTC Thermistor Input
Reverse Battery Protection
The ISET Pin Short Protection
Charge Status Indicator
AC Adapter Power-Good Indicator
End of Charge Current is set at 10% of the Fast-Charge Current
Undervoltage Protection
Overvoltage Protection
Battery Pack Temperature Monitoring (Hot, Warm, Cool, and Cold 4 Thresholds)
Thermal Feedback Optimized Charge Rate
Small Thermally Enhanced 8-Lead WDFN Package

应用 Application

•Cellular Phones
•Digital Cameras
•Smart Phones
•Portable Instruments