TPS40041DRBRG4

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TPS40041DRBRG4 Application Field and Working Principle

The TPS40041DRBRG4 integrated circuit (IC) is an advanced multi-phase controller specifically designed to optimize high performance point-of-load (POL) DC/DC solutions. The device is part of the high performance series of synchronous step-down DC/DC controllers that supports 3- to 6-phase applications; these applications may be used in a variety of applications including graphic cards, gaming cards, Power-over-Ethernet (PoE) and other mid-power applications.

Application Field

The TPS40041DRBRG4 is a high performance multi-phase DC-DC synchrostep controller suitable for various types of high current, high output voltage applications. It is a fully integrated solution that minimizes component count, lowers cost, and simplifies design time for a wide range of POL applications. This device has integrated diagnostics, and supports 3- to 6-phase applications, including but not limited to:

• Graphics cards
• Gaming cards
• Power over Ethernet (PoE)
• Other mid-power applications

The TPS40041DRBRG4 IC is ideal for applications that require high-efficiency, low noise, and fast transient response. The device supports fast transient response with its top-notch voltage-mode control and over-voltage protection (OVP) to ensure safe operation of the system, even in harsh environments.

Working Principle

The TPS40041DRBRG4 is a controller IC based on Multi-Phase Interleaved Operation (MPIO) and Digital-to-Analog Converter (DAC) architectures. It is designed to form a feedback loop to provide a stable and efficient power delivery. The device supports 3- to 6-phase operation, with a phase current limit of 1.8A per phase.

The TPS40041DRBRG4 IC works by controlling the switching of power MOSFETs and synchronous rectification of Transistors via the dedicated PWM logic and digital voltage adjust (DVA) circuitry. The response time of the controller is determined by the loop bandwidth and is adjustable using external components. Also, the MOSFET drivers have built-in slew rate control to minimize power consumption and noise. Additionally, the device offers input voltage protection and over-voltage protection (OVP) to ensure safe operation of the system, even in harsh environments.

In addition, the device provides integrated non-volatile memory to store trimming information of the power stage, allowing for easy and efficient calibration. Moreover, the device supports adjustable dead-time compensation and integrated diagnostic functions that allow for a reliable power system design.

Overall, the TPS40041DRBRG4 IC is an ideal solution for high power applications such as graphic cards, gaming cards, PoE, and other mid-power applications. With its advanced digital-to-analog control architecture, the device ensures efficient, low-noise operation and fast transient response while providing monitoring and protection functions to ensure reliability and safety.

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