TMI2244D数据手册Tollsemi中文资料规格书

描述 Description

TMI2244D is a wide input voltage, fixed 5V output voltage, high efficiency active CC step-down DC/DC converter that operates in either CV (Constant 5V Output Voltage) mode or CC (Constant Output Current) mode with USB D+/D- detection function. TMI2244D provides up to total 3.6A output current limit at 5V output. Maximum 100% duty cycle could be obtained. TMI2244D internal integrate 75mΩ high side and 40mΩ low side power MOSFET. TMI2244D can automatically provide the correct electrical signatures on the data lines to charge compliant devices among Apple.Advanced production features include UVLO, Thermal Shutdown, Soft Start and input OVP.

特性 Features

• P-MOS+N-MOS Switch Structure
• Wide Input Voltage: 4.5V to 30V
• High Efficiency up to 92%@12VIN to 5V/3.4A
• Up to 3.6A Output Current Limit at 5V Output
• PFM mode in Light Load Condition
• Internal Compensation
• Output Line Drop Compensation
• Hiccup Output Short Current Protection
• ±2% Output Voltage Accuracy
• Thermal Shutdown
• Duty Cycle up to 100%
• D+/D- Line Detection
• 2.7V Divider Mode for Apple devices
• Low BOM Cost
• SOP8 Package

应用 Application

• Car Charger/ Adaptor
• Rechargeable Portable Devices
• General-Purpose CC/CV Power Suppliers