Series:	PICtail™
Part Status:	Active
Type:	Audio
Function:	Voice Record/Playback
Embedded:	Yes, MCU, 8-Bit
Utilized IC / Part:	PICtail™ interface, PICtail Plus™
Primary Attributes:	On-board 250 Kbit SPI Serial EEPROM for voice storage
Supplied Contents:	Board(s)
Secondary Attributes:	Mono Output via On-Board Speaker or Stereo Output via Headphones

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Evaluation and Demonstration Boards and Kits

AC164125 is a 42 V 3 A carry-current-limiting DC-DC converter evaluation and demonstration board that facilitates the testing, evaluation, and demonstration of its corresponding design module. The compact circuit structured boards enable users to receive a complete, tested solution designed for power management applications.

Design Overview

The AC164125 board incorporates the UCC28910 controller, which consists of a 42 V 3 A carry-current-limiting DC-DC converter, a high side MOSFET, and a low side NFET. This board also includes a current-sense MOSFET in order to accurately protect against overcurrent conditions. The AC164125 board operates in constant voltage and current mode; the power stage accepts input voltages from 3.3 V to 42 V, while the output voltage is adjustable from 0.8 V to 32 V, with a max output current rating of 3 A. This board also features an onboard control circuit that monitors the output current and voltage, and establishes the necessary safety functions such as over-current, over-voltage, and over-temperature. Furthermore, the AC164125 allows users to conveniently measure and monitor the input, output, and power stages. The integrated LED and RJ-45 ports provide an effortless way to enable, monitor, and manage the system’s power states.

Applications

The AC164125 board can be used for a wide range of applications, such as smartphones, tablets, laptops, and other consumer electronics.The board can also be used as an efficient solution for laser diode drivers, LED lighting systems, power conversion regulated circuits, medical and telecom power systems and solar arrays. In addition, the AC164125 board can be used in power conversion regulated circuits, switching converters, and rectifier circuits.

Working Principle

The AC164125 board utilizes the UCC28910 integrated circuit to efficiently regulate and monitor the output current and voltage. The input voltage range ranges from 3.3 V to 42 V while the output voltage is adjustable from 0.8 V to 32 V.For power output regulation and current limiting, the AC164125 board contains a MOSFET, NFET, and current-sense MOSFET. The NFET will activate once the output current begins to exceed the user-defined limit. The high side switch and the NFET form a low side PMOS switch which then works as a current limiter. The integrated controller will also monitor the output power stages and establish safety parameters such as over-current, over-voltage, and over-temperature shutdowns. With the LED and RJ-45 ports, users can easily enable, monitor, and manage the power states.

Conclusion

In summary, the AC164125 evaluation and demonstration board is an ideal solution for wide variety of power management applications, specifically designed for 3 A and 42 V DC-DC converter-based systems. It provides users with a comprehensive, integrated circuit-based solution and effortless control via LED and RJ-45 ports. The AC164125 boards offer a robust and reliable platform to test, evaluate, and demonstrate power management solutions.

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