AW3215ADNR数据手册Awinic中文资料规格书

描述 Description

AW3215A is a highly integrated, switch- modehigh efficiency, large current Li-Ion batterycharging management chip. Integrated 1.35 MHzsynchronous Buck PWM controller and powerMOSFETs, effectively reducing the power loss.The charge process of AW3215A includes:activation, trickle, constant current (CC) andconstant voltage (CV). The charge process runsautomatically and recharge occurs when thebattery voltage drops below 4.08V (AW3215A) .AW3215A includes four loops: constant voltage,constant  current,  K-DPMTM and  K-TEMPTM ,controlling the charge current, constant voltage,VBUS voltage and die temperature respectively.The K-DPMTM reduces charge current andadaptively matching USB or small power adapter.The K-TempTM linearly adjusts charge currentaccording to the die temperature, acquiringmaximum charge-rate without overheating.AW3215A is available in DFN 3mm×3mm-12L package.

特性 Features

• Charge Faster than Linear Chargers
• Charge Voltage Regulation Accuracy: 4.2V±1% (AW3215A)
• Up to 1.5-A Programmable Charge Rate
• Specific K-DPMTM: VBUS Based Dynamic Power Management
• VBUS Pin ESD >8kV（HBM）
• Up to 88% Charge Efficiency
• Specific K-TEMPTM: Thermal Regulation Protection for Output Current Control
• 18V Absolute Maximum VBUS Rating
• Activation-Trickle-CC-CV Four-stage Automatic Charging Process, Automatic Recharge
• Available for Software Download and System Start without Battery when NTC pin floated
• Strong Charge Protection：VBUS OVP, Minimum VBUS during Charging, Battery OVP, Thermal Shutdown
• Charge Status Indication
• DFN 3mm×3mm-12L Package