BQ28400EVM

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Evaluation and Demonstration Boards and Kits provide the platform to test various applications and help to evaluate the circuit design and performance. BQ28400EVM is one of the typical boards. This paper gives the brief explanation about the application field of this product, and also introduces the working principle of BQ28400EVM.

Application Field of BQ28400EVM

BQ28400EVM is a evaluation board from Texas Instruments. This application board contains all necessary components for use and supports a wide range of evaluation and demonstration of power transistors and linear circuits. This board is mainly used to evaluate the characteristics of the BQ28400 single cell lithium-ion battery protection IC. It helps to verify the operation and performance of BQ28400 IC and also support the proper evaluation and demonstration of related circuits.

Working Principle of BQ28400EVM

BQ28400EVM is basically a circuit board for evaluating the performance of single cell lithium-ion protection ICs. This board has two parts, BQ28400EVM evaluation board and FIL-FLEX power board. The BQ28400EVM evaluation board includes a load board, BQ28400 IC, series pass transistor and test connector. The FIL-FLEX power board consists of PNP pass transistors and bootstrap capacitors. It also includes an optional low-dropout (LDO) regulator for providing a reliable supply voltage to the BQ28400 IC.

The working principle of BQ28400EVM is like this: The BQ28400 IC is powered by the FIL-FLEX power board, and the load board is used to provide fault current to the protection IC during the evaluation. The BQ28400EVM also contains series pass transistors which can drive the load board during protection evaluation. The test connector, on the other hand, is used to program the IC as per the desired parameter values. Finally, the low-dropout (LDO) regulator is optional and can be used to provide a consistent, reliable supply voltage to the BQ28400IC.

Conclusion

BQ28400EVM is an evaluation board for evaluating single cell lithium-ion protection ICs. This application board consists of all the components necessary for proper evaluation and demonstration of the power transistors and linear circuits. It contains two parts, BQ28400EVM evaluation board and FIL-FLEX power board, and includes a load board, BQ28400 IC, series pass transistors and test connector, PNP pass transistors and bootstrap capacitors, and an optional low-dropout (LDO) regulator. This board provides the platform to test various applications and helps to evaluate the circuit design and performance.

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