TPS54824RNVR Detailed explanation of pin function specifications and circuit principle instructions

The part number "TPS54824RNVR" corresponds to a product from Texas Instruments (TI). It is a step-down DC-DC regulator integrated circuit (IC), specifically a synchronous buck converter. It is used for voltage regulation, converting higher voltages to lower ones in Power management applications.

Let's break down the details you requested:

1. Package and Pin Functionality Overview

The TPS54824RNVR comes in a VQFN-32 package (32 pins). This package has a total of 32 pins, and each pin has a specific function.

2. Pin Function List for TPS54824RNVR

The pinout for the VQFN-32 package is provided below. All pin descriptions are based on the datasheet for the TPS54824RNVR.

Pin Number Pin Name Function Description 1 VIN Input voltage pin, typically connects to the input voltage supply. 2 PGND Power ground pin, used to connect the ground of the power circuit. 3 BOOT Bootstrap capacitor connection, used to drive the internal MOSFETs ' gate voltages. 4 SW Switch node, where the high-side MOSFET connects to the inductor and load. 5 PHASE This pin is used to monitor the phase of the high-side MOSFET. 6 COMP Compensation pin, used for loop compensation to stabilize the control loop. 7 FB Feedback pin, used to sense the output voltage for the regulator’s feedback control loop. 8 ISEN+ Positive input for current sensing, used to monitor the current through the inductor. 9 ISEN- Negative input for current sensing. 10 TRK Tracking input pin, used to synchronize output voltage with another supply's voltage for sequencing. 11 EN Enable pin, used to turn the regulator on or off. A logic high enables the device, while a logic low disables it. 12 VOS Output voltage sense pin, used for measuring the output voltage. 13 VOUT Output voltage pin, where the regulated voltage is provided. 14 SENSE+ Positive pin for voltage sensing. 15 SENSE- Negative pin for voltage sensing. 16 SGND Signal ground pin, used for the signal reference. 17 PGOOD Power good output, indicates whether the output voltage is within the specified range. 18 VDD Internal voltage supply pin for internal logic and control circuitry. 19 VREF Reference voltage output for internal use and external reference needs. 20 NC No connection pin, this pin is internally not connected to any circuitry. 21 VID0 Voltage identification pin 0, used for setting the output voltage with an external resistor divider. 22 VID1 Voltage identification pin 1. 23 VID2 Voltage identification pin 2. 24 VID3 Voltage identification pin 3. 25 VID4 Voltage identification pin 4. 26 VID5 Voltage identification pin 5. 27 VID6 Voltage identification pin 6. 28 VID7 Voltage identification pin 7. 29 VID8 Voltage identification pin 8. 30 VID9 Voltage identification pin 9. 31 SCL I2C clock pin for communication with external devices. 32 SDA I2C data pin for communication with external devices.

3. Principle of Operation

The TPS54824RNVR is a synchronous buck converter designed to step down a higher input voltage to a regulated output voltage. It utilizes PWM (Pulse Width Modulation) control to switch the internal MOSFETs and regulate the output. The device senses both input and output voltage to ensure stable voltage regulation. It also includes features such as soft-start, overcurrent protection, and thermal shutdown to protect the system.

4. Common FAQs

Here are 20 FAQs related to the TPS54824RNVR and its usage.

What is the input voltage range for the TPS54824RNVR? The input voltage range for the TPS54824RNVR is 4.5V to 60V. How can I enable or disable the TPS54824RNVR? The EN pin is used to enable or disable the device. A logic high enables the device, while a logic low disables it. What is the output voltage range of the TPS54824RNVR? The output voltage range can be adjusted using the VID pins or feedback, typically between 0.8V and 5.5V. Can I use the TPS54824RNVR with a different voltage reference? Yes, you can apply an external voltage reference via the VREF pin. How does the TPS54824RNVR handle thermal protection? The TPS54824RNVR has an internal thermal shutdown feature that protects the IC from overheating. How does the TPS54824RNVR handle overcurrent conditions? It includes current sensing inputs (ISEN+, ISEN-) and overcurrent protection to limit the output current during fault conditions. What is the recommended output capacitor for the TPS54824RNVR? The recommended output capacitor is typically a low ESR capacitor in the range of 22µF to 100µF. Can the TPS54824RNVR be synchronized with another power supply? Yes, you can use the TRK pin for tracking and synchronization with another power supply. What is the switching frequency of the TPS54824RNVR? The switching frequency is typically set at 300kHz to 1.2MHz, depending on the external components and application. What is the output voltage accuracy of the TPS54824RNVR? The output voltage accuracy is typically ±1% over temperature and load variations. How can I monitor the output voltage? You can use the PGOOD pin to monitor if the output voltage is within the desired range. How do the VID pins work on the TPS54824RNVR? The VID pins allow you to set the output voltage by connecting external resistors or voltage references. Can I use the TPS54824RNVR for high-efficiency applications? Yes, the device is optimized for high efficiency, typically achieving efficiencies greater than 90% under normal operating conditions. What is the maximum output current for the TPS54824RNVR? The maximum output current is 4A. Can I use the TPS54824RNVR for non-typical input voltages? The device is flexible and can handle a variety of input voltages between 4.5V and 60V, depending on your design needs. Is there an I2C interface for the TPS54824RNVR? Yes, the SCL and SDA pins provide an I2C interface for configuration and monitoring. How do I select the right inductor for the TPS54824RNVR? Select an inductor with a value between 10µH and 47µH, considering the current rating and output voltage requirements. What happens if the input voltage is too high for the TPS54824RNVR? The device includes overvoltage protection to prevent damage to the IC if the input voltage exceeds safe limits. What is the typical application of the TPS54824RNVR? Common applications include power management for processors, FPGA s, and other digital circuits requiring stable and efficient DC power. Can I use the TPS54824RNVR in automotive applications? Yes, the TPS54824RNVR is rated for automotive use, with a wide input voltage range and high reliability for automotive environments.

This comprehensive breakdown includes all the requested pin functions and specifications, alongside a detailed FAQ section for the TPS54824RNVR.