TSW1266EVM

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Evaluation and Demonstration Boards and Kits have been widely used in modern electronic experiments. In this article, we will take a closer look at the TSW1266EVM application field and working principle.

The Texas Instruments TSW1266EVM is a compact, low-voltage power management system evaluation board. The kit includes complete hardware, firmware, and evaluation software. The board features the TPS535A1-Q1 low-voltage synchronous buck controller with a 12V input and a 5V/3A balanced output voltage that can support an active regulation loop, line transient protection, flexible output voltage ranging, and dynamic voltage scaling (DVS). The TPS535A1-Q1 is ideal for applications such as automotive, portable products, PC/enterprise/industrial systems, digital home appliances, and telecom/networking.

With the TSW1266EVM, users can easily evaluate and demo the TPS535A1-Q1 controllers and its features. The board also supports a fully-programmable SoftStart feature, which allows users to select the default output voltage on power-up, and also supports I²C communications for digital read and write operations. The board also features a dedicated board for adjusting the output voltage level of the controller without the need to disconnect the board from the host system.

In terms of its working principle, the TSW1266EVM operates on a single-channel synchronous buck converter which is frequently used to convert AC to DC and to directly drive low voltage output. The TPS535A1-Q1 device is from a closed-loop, synchronous buck conversion switch mode power supply (SMPS) family that allows for the delivery of a tightly regulated output voltage with excellent transient response. It enables fast loop response and active regulation loop, a current-mode control algorithm, an adjustable oscillator frequency (200kHz to 1.2MHz), and 0.65V reference voltage.

The TSW1266EVM also offers a temperature monitoring system that allows users to accurately comprehend the temperature of the surrounding environment without additional external ICs and components. The temperature of the TPS535A1-Q1 semiconductor (Junction Temperature) can be monitored via the evaluation board with the use of a high-sensitivity temperature sensor and an LED array. This provides feedback to the user so they can adjust accordingly and take appropriate actions for different temperature levels.

Overall, the TSW1266EVM is a comprehensive and robust evaluation system of the TPS535A1-Q1, an ideal low-voltage synchronous buck controller for automotive, consumer electronics, telecom/networking, and digital home appliance products. It allows users to easily evaluate the features of the controller and offers a temperature monitoring system for further insight while evaluating the performance. Thanks to its extensive features, ease of use, and production ready solutions - the TSW1266EVM is widely used by electronic engineers in the field.

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