The model "TPS25200DRVR" is part of Texas Instruments (TI)'s product line, specifically within the category of Power management ICs. The TPS25200 is a USB port power controller that integrates several functions to protect USB power ports, such as current-limiting and over-voltage protection.
Package and Pinout Overview
Package: The TPS25200 is available in the QFN (Quad Flat No-leads) package, with the exact details depending on the specific version of the device you have. The DRVR suffix typically indicates a VQFN package. Pins: The device comes with 24 pins in total.Now, I will create a detailed list of pin functions and provide FAQs as requested. Please allow me a moment.### TPS25200DRVR Pin Function Table
Here’s a detailed pinout description for the TPS25200DRVR in a 24-pin QFN package:
Pin No. Pin Name Pin Type Function Description 1 VOUT Output This is the output pin for the regulated voltage to the USB device, typically 5V. It provides the powered voltage to the load. 2 GND Ground This is the ground reference pin for the entire device. It is used for returning current to the power supply. 3 VID Input This pin is used to detect the USB Type-C VBUS voltage. It helps in determining the correct charging current and mode. 4 VDD Power Input This is the power supply input for the device. It typically accepts a 5V supply. 5 SD Input The SD (Shutdown) pin is used to enable or disable the device. A logic low turns off the device. 6 ILIM Input The current limit setting pin. This pin allows you to set the output current limit by connecting a resistor to ground. 7 FAULT Output This pin signals any fault conditions (e.g., overcurrent, overvoltage). A logic low indicates a fault. 8 PGND Ground The power ground pin. This pin is specifically used for the power switching part of the device. 9 SENSE+ Input This pin senses the output voltage to ensure it is within regulation limits. 10 SENSE- Input This pin works in conjunction with SENSE+ to monitor output voltage and current. 11 DRV Output The DRV pin is responsible for controlling the power FET for current limiting and protection. 12 REF Output This is the internal reference voltage output, typically 1.2V, for powering external circuitry. 13 ON/OFF Input This pin is used for enabling or disabling the device operation by controlling the logic state. 14 SNS_REF Input The sensor reference pin used for measuring input or output voltage for protection. 15 FAULT_EN Input This pin controls the fault detection enable/disable feature of the device. 16 ILIMSET Input This pin is used to set the current limit threshold by applying an external resistor. 17 VCC Power Input This pin connects to the main power supply voltage, typically 5V, for powering the IC. 18 SENSE2+ Input Similar to SENSE+, this pin helps monitor the output current through differential sensing. 19 SENSE2- Input Works with SENSE2+ to monitor output voltage and detect overcurrent faults. 20 EN Input The enable pin for controlling the power on/off states of the IC. It allows external control of the device's operation. 21 OUT1 Output The first regulated output voltage pin. This pin typically outputs 5V. 22 OUT2 Output A second output voltage pin, providing a regulated output for other USB devices. 23 OVP Input The over-voltage protection pin, which helps monitor the input voltage to prevent damage to the IC. 24 THERMAL Output The thermal fault output, which triggers when the device reaches an over-temperature condition.FAQs for TPS25200DRVR
1. Q: What is the primary function of the TPS25200DRVR? A: The TPS25200DRVR is a USB port power controller with current-limiting, over-voltage protection, and other power management functions to protect USB devices from damage.
2. Q: How does the current limit function work on the TPS25200DRVR? A: The current limit is set via an external resistor connected to the ILIM pin. This resistor determines the maximum output current for the USB port.
3. Q: What happens when the TPS25200DRVR detects an overcurrent condition? A: When an overcurrent is detected, the device will shut down the output to protect the system and will signal a fault on the FAULT pin.
4. Q: Can the TPS25200DRVR be turned off? A: Yes, the device can be turned off by applying a low logic signal to the SD (shutdown) pin.
5. Q: What is the role of the VID pin on the TPS25200DRVR? A: The VID pin is used to detect the USB Type-C VBUS voltage for negotiating power delivery profiles and ensuring proper power allocation.
6. Q: What type of output does the TPS25200DRVR provide? A: The TPS25200DRVR provides a regulated 5V output on the VOUT pin, which is used to power connected USB devices.
7. Q: How is the TPS25200DRVR protected from overvoltage? A: The OVP pin is used to monitor the input voltage, and if it exceeds a predefined threshold, the device will disconnect or limit the output to prevent damage.
8. Q: What happens when the TPS25200DRVR detects an over-temperature condition? A: The thermal protection feature triggers and will shut down the device if the internal temperature exceeds a safe threshold, signaled by the THERMAL pin.
9. Q: What is the purpose of the FAULT pin on the TPS25200DRVR? A: The FAULT pin is used to indicate any fault conditions, such as overcurrent, overvoltage, or thermal shutdown.
10. Q: How does the device handle short-circuit conditions? A: The TPS25200DRVR has integrated short-circuit protection that will limit the current to a safe level or shut down the output if a short is detected.
11. Q: How do I enable the TPS25200DRVR? A: The device can be enabled by applying a high logic level to the ON/OFF pin.
12. Q: Can the TPS25200DRVR be used in USB Type-C applications? A: Yes, the device is designed to work with USB Type-C systems and can provide power management for USB Type-C PD (Power Delivery) devices.
13. Q: What is the maximum input voltage for the TPS25200DRVR? A: The maximum input voltage is typically 6V, with over-voltage protection ensuring the device does not exceed safe operating limits.
14. Q: What happens if I connect the VOUT pin to a voltage higher than the specified range? A: Connecting a voltage higher than the specified range to the VOUT pin can damage the internal circuitry of the device and trigger over-voltage protection.
15. Q: Can I use the TPS25200DRVR in non-USB applications? A: The TPS25200DRVR is specifically designed for USB power control applications, so using it outside USB contexts may not be suitable.
16. Q: What is the recommended resistor value for setting the current limit? A: The current limit is set by the ILIM pin resistor, and the recommended value can be found in the datasheet based on the required current limit.
17. Q: How does the device respond to a power cycle? A: After a power cycle, the TPS25200DRVR will reset and resume normal operation, depending on the logic level on the ON/OFF pin.
18. Q: Can the TPS25200DRVR handle USB high-speed data transmission? A: The TPS25200DRVR is designed for power management and does not handle USB data transmission; it ensures proper power supply for USB devices.
19. Q: What is the typical output current limit for the TPS25200DRVR? A: The output current limit can be adjusted using the ILIM pin. Typical limits are in the range of 500mA to 2A, depending on the resistor value.
20. Q: Where can I find the full datasheet for the TPS25200DRVR? A: The full datasheet for the TPS25200DRVR is available on the Texas Instruments website, where it provides detailed specifications, application notes, and design guidelines.
This should cover all necessary aspects of the TPS25200DRVR and provide a solid reference for pin functions, packaging, and common queries.
