TPS40051QPWPRQ1 Integrated Circuits (ICs)

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TPS40051QPWPRQ1 Application Field and Working Principle

The Texas Instruments TPS40051QPWPRQ1 is a DC-DC switching controller designed for server and data center power converters. It is a part of Texas Instruments\' family of switching controllers for converting AC power to low voltages.

Application Field of the TPS40051QPWPRQ1

The TPS40051QPWPRQ1 is designed for high-end server power converters and data center power supplies. It is especially optimized for synchronous rectification and voltage conversion, featuring low current ripple, low power consumption, high efficiency, and optimal compact size. Its built-in current mode control loop and adjustable switching frequency improve the stability of the next-level switching convertors.

The TPS40051QPWPRQ1 operation voltage range is 1.8V - 4.5V, which is suitable for low-voltage applications, high current applications and ultra-high current applications. It also supports wide temperature range from -40°C to 85°C and is compliant to various safety and EMC standards such as UL, cUL, CB and RoHS. The TPS40051QPWPRQ1 also features an optional adjustable undervoltage lockout feature, which is used to avoid device damage.

Working Principle of the TPS40051QPWPRQ1

The TPS40051QPWPRQ1 adopts current mode control, consisting of 2 loops: a fixed-frequency loop and a variable-frequency loop. The fixed-frequency loop is designed to maintain the loop stability under various conditions and has a fixed loop gain. The variable-frequency loop is designed to keep the output voltage at the targeted value.

The two loops share a switching frequency, which is optimized for the highest efficiency of the conversion process. The TPS40051QPWPRQ1 also features a Power Factor Correction (PFC) cycle-by-cycle current limit detection, which is used to correct input power factor and avoid over current protection.

The TPS40051QPWPRQ1 also features a shiftable On/Off gate driver output to control the on/off time of the external MOSFET or IGBT. It also has multi-purpose pin option to realize parallel connection or to control third party DC-DC converters.

Conclusion

The Texas Instruments TPS40051QPWPRQ1 is a DC-DC switching controller designed for high-end server and data center power converters. Its application field includes low-voltage applications, high current applications and ultra-high current applications. Its built-in current mode control loop and adjustable switching frequency improve the stability and efficiency of the switching converters. The TPS40051QPWPRQ1 also features an optional adjustable undervoltage lockout feature, PFC cycle-by-cycle current limit detection, shiftable On/Off gate driver output, and multi-purpose pin options.

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