• TPS40140RHHR VQFN (RHH)-36
TPS40140RHHR VQFN (RHH)-36

TPS40140RHHR

DC switching controller

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Overview of TPS40140RHHR

The TPS40140RHHR is a synchronous buck controller IC designed for high-current, high-voltage applications. It provides efficient power management solutions for a wide range of power supply designs, offering versatility and reliability in demanding environments.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • COMP: Compensation Pin
  • RT/CT: Soft Start/Current Limit Pin
  • BOOST: Bootstrap Pin
  • PGND: Power Ground
  • SW: Switch Node
  • LGD: Low-Side Gate Driver Output
  • VCC: Supply Voltage
  • FREQ: Frequency Synchronization Pin
  • VSENSE: Voltage Sense Input
  • ILIM: Current Limit Sense Input
  • SS/TR: Soft Start/Tracking Pin
  • AGND: Analog Ground
  • FB: Feedback Pin
  • PGOOD: Power Good Indicator

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the TPS40140RHHR IC for a visual representation.

Key Features

  • Synchronous Buck Controller: Enables high-efficiency power conversion in various applications.
  • Wide Input Voltage Range: Operates with input voltages ranging from 4.5V to 28V, suitable for diverse power supply designs.
  • Adjustable Frequency: Allows for flexible frequency synchronization and optimization based on system requirements.
  • Programmable Soft Start: Offers soft-start functionality for controlled power-up sequences and current limit protection.
  • Power Good Indicator: Provides a signal indicating proper output voltage regulation for system monitoring.
  • Protection Features: Includes overcurrent protection, thermal shutdown, and undervoltage lockout for reliable operation.

Note: For detailed technical specifications, please refer to the TPS40140RHHR datasheet.

Application

  • Power Management Systems: Ideal for power management and voltage regulation in industrial and automotive systems.
  • DC-DC Converters: Suitable for synchronous buck converter applications requiring high efficiency and precise control.
  • Voltage Regulators: Used in voltage regulator circuits to provide stable and reliable power supply to sensitive components.

Functionality

The TPS40140RHHR is a versatile synchronous buck controller that delivers efficient power conversion and reliable performance in various power supply designs. It offers advanced features to meet the demands of complex power management systems.

Usage Guide

  • Input Power: Connect the supply voltage to the VCC pin, ensuring it falls within the specified input voltage range.
  • Output Connection: Connect the load to the SW pin for regulated output voltage delivery.
  • Frequency Adjustment: Use the FREQ pin for frequency synchronization adjustment to optimize system performance.

Frequently Asked Questions

Q: What is the maximum input voltage supported by the TPS40140RHHR?
A: The TPS40140RHHR can handle input voltages up to 28V, offering flexibility for various power supply designs.

Q: Does the TPS40140RHHR include thermal protection?
A: Yes, the TPS40140RHHR features thermal shutdown protection to prevent overheating and ensure system reliability.

Equivalent

For similar functionalities, consider these alternatives to the TPS40140RHHR:

  • LM5116: A high-voltage synchronous buck controller with comparable features for power supply applications.
  • ADP2384: This synchronous buck controller from Analog Devices offers advanced power management capabilities similar to the TPS40140RHHR.

TPS40140RHHR

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Vin (min) (V) 2 Vin (max) (V) 40
Vout (min) (V) 0.7 Vout (max) (V) 5.8
Iout (max) (A) 25 Iq (typ) (mA) 2.8
Switching frequency (min) (kHz) 150 Switching frequency (max) (kHz) 1000
Features Enable, Frequency synchronization, Multiple Outputs, Phase Interleaving, Remote Sense, Tracking Operating temperature range (°C) -40 to 85
Regulated outputs (#) 2 Number of phases 2
Rating Catalog Control mode current mode
Type Controller

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