TPS82740BSIPR

DC-DC converters are a type of power converter used to change the output voltage of a power source. The TPS82740BSIPR is a DC-DC converter designed for automotive applications, such as motor control, voltage regulation, and power management. This converter features a wide operating input range, a high output current capability, and low ripple and noise characteristics.

Overview of Features

The TPS82740BSIPR offers a high-efficiency, low-noise power conversion solution for automotive applications. It features a wide 2.7V–40V operating input range, a high-peak output current up to 25A, and an integrated FET for PWM control. This converter also has a low ripple and noise of less than 10 mV, making it ideal for precision motor control applications. The device also has an integrated protection against output overvoltage, overcurrent, and undervoltage conditions. Additionally, it features cycle-by-cycle current limit protection.

Applications

The TPS82740BSIPR can be used in a variety of automotive applications, such as voltage regulation, power management, and motor control. It can be used in electric and hybrid electric vehicles, enabling efficient motor control and power management. This converter can also be used in solar energy systems and portable medical devices. In addition, it can be used in automotive entertainment systems, providing reliable, low-noise performance.

Working Principle

The TPS82740BSIPR is a synchronous full-bridge converter with synchronous rectification. The power stage consists of an integrated FET and two external FETs (P-channel and N-channel). The output voltage is controlled by modulating the duty cycle of the integrated FET. The converter is enabled through the EN pin, which can be connected directly to a microcontroller or to an external circuit. The voltage feedback (FB) pin senses the output voltage and is connected to an error amplifier, which generates a PWM signal. The frequency of the signal is determined by the frequency control pins (FC and FCM).

The TPS82740BSIPR also has an integrated overvoltage protection (OVP) circuit. It is a simple comparator circuit that compares the output voltage to an internal reference. If the output voltage exceeds this reference, the internal FET is disabled, shutting down the device. The device also has overcurrent and undervoltage protections, which monitor the output current and input voltage respectively, and shut down the device in the event of an overcurrent or undervoltage condition.

Conclusion

The TPS82740BSIPR is a DC-DC converter designed for applications in the automotive sector. It features a wide operating input range, a high output current capability, an integrated FET for PWM control, and low ripple and noise characteristics. The device also has an integrated overvoltage, overcurrent, and undervoltage protection circuit. It can be used in electric and hybrid electric vehicles, solar energy systems, portable medical devices, and automotive entertainment systems.