TPS61170EVM-280

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The TPS61170EVM-280 evaluation board is a high efficiency off-line LED driver which offers fully integrated solutions for mobile handsets, tablets, imaging, video and other portable applications. This board is designed to develop power supply designs that meet high efficiency and low standby power requirements. It helps the user to develop products in a number of applications, ranging from LED lighting to utility lighting, telecom, embedded systems, sensor systems, and consumer electronics.

The TPS61170EVM-280 evaluation board is based on a DC/DC buck converter with a wide input voltage range from 6V to 18V. It has a maximum load output current of 280mA and can achieve a peak efficiency of over 95%. The board also features an integrated MOSFET driver for improved efficiency and EMI suppression, as well as a shutdown/enable pin for improved system power management. Furthermore, the board can be used over temperature range from -20℃ to 85℃.

The DC/DC buck converter provides a regulated output voltage for a specified load current with low ripple and satisfactory line and load performance. The output of the converter is sensed by a control loop which continuously compares the feedback to the reference voltage, and then adjusts the duty cycle of the power switch. This ensures that the output is regulated within the specified voltage range. The TPS61170EVM-280 uses Pulse Frequency Modulation (PFM) for controlling the average power delivered to the output.

The TPS61170EVM-280 application field includes LED backlight display, DC/DC power supply, and AC/DC wireless charger. The LED backlighting display application requires a constant LED current even as the input voltage changes and the backlight duty cycle decreases. The TPS61170EVM-280 evaluation board can achieved this goal by providing a low ripple and low noise output with good line and load regulation.

The DC/DC power supply application requires good regulation and lowripple for load currents up to a few hundred mA. The TPS61170EVM-280 evaluation board can deliver these outputs with an efficiency up to 95%. It has a wide input voltage range, and also supports shutdown and enable pins for improved system power management.

The AC/DC wireless charger application requires a constant output current for wireless charging. The TPS61170EVM-280 evaluation board can provide this constant current output with very low ripple and noise and wide input voltage range. It is also designed to accommodate output currents up to 280mA.

In conclusion, the TPS61170EVM-280 evaluation board is a high efficiency off-line LED driver solution. This board is designed to develop power supply designs for LED backlighting, DC/DC power supplies, and AC/DC wireless chargers. It offers a wide input voltage range, low ripple and noise output, as well as a shutdown/enable pin for improved system power management. With its excellent performance, the TPS61170EVM-280 is an ideal solution for mobile handsets, tablets, imaging, video, and other portable applications.

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