• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The TPS55010 is a transformer driver designed to provide isolated power for isolated interfaces, such as RS-485 and RS-232, from 3.3V or 5V input supply.

The device uses fixed frequency current mode control and half bridge power stage with primary side feedback to regulate the output voltage for power levels up to 2W. The switching frequency is adjustable from 100 kHz to 2000 kHz so solution size, efficiency and noise can be traded off. The switching frequency is set with a resistor or is synchronized to external clock using the RT/CLK pin. To minimize inrush currents, a small capacitor is connected to the SS pin. The EN pin is used as an enable pin or to increase the default input UVLO voltage from 2.6V.

The TPS55010 is available in a 16 pin QFN with thermal pad that provides a thermally enhanced.

特性

• Isolated Flybuck™ Topology
• Primary Side Feedback
• 100 kHz to 2000 kHz Switching Frequency
• Synchronizes to External Clock
• Adjustable Slow Start
• Adjustable Input Voltage UVLO
• Open Drain Fault Output
• Cycle-by-Cycle Current Limit
• Thermal Shutdown Protection
• 3mm×3mm 16 Pin QFN Package
• APPLICATIONS
  • Isolated RS-485/RS-232 Power Supply
  • Isolated CAN transceivers
  • Floating Supply for IGBT Gate Driver
  • Power Automation Control
  • Industrial Process Control
  • Isolated Data Acquisition
  • Bridge Ground Differential
  • Noise-Immunity Communications Interface