TPS40074EVM-001

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The TPS40074EVM-001 is a versatile evaluation board designed to evaluate the performance and characteristics of the TPS40070 synchronous boost converter family, available from Texas Instruments. It features a wide range of voltages and output current levels, making it suitable for an array of applications.

The board consists of a synchronous boost converter, MOSFETs, and an integrated shielded inductor. It recieves input voltage Vsense and has an adjustable output voltage from 5.6V to 64V, making it suitable for a broad range of applications. The output current is adjustable from 0.3A to 15A, depending on the application. A separate phase-shift circuit is included in the output stage for high-temperature operation.

The TPS40074EVM-001\'s integrated shielded inductor is key for a variety of applications. It reduces external parts, reduces common-mode noise, and provides greater output current. It also offers ripple and EMI noise suppression when used with ceramic capacitors, a valuable feature in many high-frequency switching applications. The TPS40074EVM-001 is an ideal choice for designers seeking to optimize power factor correction and efficiency for higher load currents.

The primary application field for the TPS40074EVM-001 is Point-of-Load (PoL) supplies. The adjustable programmable output voltage and current levels makes it suitable for a wide range of DC/DC and AC/DC (off-line) applications. It is also suitable for LED illumination, digital TV, laptop adapter, mobile device chargers, automotive electronics, and more.

The TPS40074EVM-001’s working principle is based on the buck-boost topology, a common switching topology that converts voltage or current from a source and regulates the output voltage or current. The TPS40074EVM-001 includes a synchronous controller that recieves input voltage, adjusts pulse width modulation (PWM) width of the two stages, and regulates output voltage or current. An integrated shielded inductor is used to reduce inductance losses and minimize ripple. The two stages of the circuit are MOSFETs, which protect the output from overloads. It also includes an adjustable over voltage protection (OVP) circuit, which further helps to protect the output from overvoltage events.

Overall, the TPS40074EVM-001 is a versatile board with a wide range of output voltages and currents, making it suitable for DC/DC and AC/DC (off-line) applications. Its integrated shielded inductor helps reduce inductance losses and its adjustable OVP circuit aids in protecting from overvoltage events, increases reliability, and helps ensure high output performance. It is simple to operate and ideal for designers seeking to optimize power factor correction and efficiency.

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