TMI2244B数据手册Tollsemi中文资料规格书

描述 Description

TMI2244B is a wide input voltage, high efficiency Active CC step-down DC/DC converter that operates in either CV (Constant Output Voltage) mode or CC (Constant Output Current) mode. Switching frequency can be set by external resistor. Maximum 94% efficient be obtained at 3.4A and 5V output. Two current sensor pins ensure two channel CC control. TMI2244B internal Integrate 40mΩ high side and 23mΩ low side power MOSFET. Advanced production features include UVLO, Thermal Shutdown, Soft Start, OVP.

特性 Features

• 36V Input Voltage Surge
• Wide input voltage: 8V~30V
• Up to 4A Output Current
• 30kHz~500kHz Adjustable Frequency
• ±6% CC Accuracy
• Internal Compensation
• 32V Input OVP Protection
• HICCUP Mode
• Output OVP Protection
• Efficiency up to 94%
• 0.2V~2V Output Line Drop Compensation
• ±2% Feedback Voltage Accuracy
• Integrated Soft Start
• Thermal Shutdown
• Secondary Cycle-by-Cycle Current Limit
• EMI Consideration
• SOP8 Package

应用 Application

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