The model "TPS22965DSGR" is a product manufactured by Texas Instruments, which is a well-known brand for semiconductor devices. This particular model is a Power -Path Switch, often used for power distribution and protection applications.
Package Type:
TPS22965DSGR is available in a DSG package, which is a 3x3mm QFN (Quad Flat No-lead) package.Pin Function and Specifications for TPS22965DSGR (24 pins total):
Below is the detailed list of pin functions for each pin of the TPS22965DSGR in the QFN-24 package:
Pin Number Pin Name Function Description 1 GND Ground connection for the device. Must be connected to the system ground. 2 OUT1 Output pin for the first power rail. Connects to the load, providing the output voltage to the device/system. 3 OUT2 Output pin for the second power rail, if applicable. Similar function to OUT1. 4 IN Input voltage to the device. Connect to the power source. 5 EN Enable pin. Used to turn the device on/off. Logic high enables the device, logic low disables it. 6 ILIM Current limit pin. Allows you to set the current limit threshold using an external resistor. 7 GND Ground pin, additional ground connection for stable operation. 8 VDD Power supply for the internal circuitry of the device. 9 OUT1 Another output pin for the first power rail (redundant or secondary output). 10 GND Ground connection to ensure proper return path. 11 OUT2 Additional output pin for the second power rail (secondary power output). 12 IN Input voltage pin. 13 GND Ground pin. 14 OUT1 First output for distributing power to load. 15 VIN Input voltage connection. It must be supplied to enable the device. 16 SHDN Shutdown pin for disabling or enabling the switch. Logic high enables operation; logic low forces shutdown. 17 STATUS Status pin indicating the current state of the switch (e.g., power good). 18 ILIM Current limiting functionality pin. 19 NC No connection; not used in the current circuit design. 20 OUT2 Output for secondary power supply rail. 21 GND Another ground pin to complete the power path. 22 OUT1 Power distribution output pin. 23 EN Enable pin for controlling switch functionality (logic level input). 24 VDD Supply voltage for the control logic and internal devices.Pin Function FAQ for TPS22965DSGR:
FAQ - 1:Q: What is the function of the pin EN in the TPS22965DSGR? A: The EN pin is the Enable pin that turns the device on or off. When logic high is applied to the EN pin, the device is enabled; logic low disables the device.
FAQ - 2:Q: What is the function of the ILIM pin? A: The ILIM pin is used to set the current limit threshold for the device. An external resistor is connected to this pin to configure the current limit value.
FAQ - 3:Q: How do I connect the input voltage to the TPS22965DSGR? A: The IN pin is used for connecting the input voltage. Ensure that the input voltage range matches the operating range specified in the datasheet.
FAQ - 4:Q: What should I connect the GND pins to? A: All GND pins must be connected to the system ground to provide a stable reference for the device.
FAQ - 5:Q: What does the STATUS pin indicate? A: The STATUS pin indicates the operational state of the power path switch, such as whether the output voltage is within the expected range.
FAQ - 6:Q: How do I use the SHDN pin on the TPS22965DSGR? A: The SHDN pin is used to shut down the device. When logic low is applied, the device enters shutdown mode and no current flows through the power path.
FAQ - 7:Q: Is the NC pin used in the circuit? A: No, the NC pin is a no-connect pin and does not serve any function in the circuit.
FAQ - 8:Q: Can I leave the VDD pin unconnected? A: No, the VDD pin must be connected to a suitable supply voltage to power the internal circuitry of the TPS22965DSGR.
FAQ - 9:Q: What is the purpose of the OUT1 and OUT2 pins? A: The OUT1 and OUT2 pins are used to supply power to the load from the input voltage source. They are the output terminals of the power path switch.
FAQ - 10:Q: Can I use the ILIM pin to set the current limit dynamically? A: No, the current limit is set using an external resistor connected to the ILIM pin. It is not dynamically adjustable through external logic.
FAQ - 11:Q: Can I connect both OUT1 and OUT2 to the same load? A: It is generally not recommended to connect both outputs to the same load, as they are typically used for separate rails. Connect them to independent loads unless specified otherwise.
FAQ - 12:Q: How do I ensure the TPS22965DSGR is operating within its recommended voltage range? A: Ensure that the input voltage at the IN pin and the supply voltage at the VDD pin are within the specified ranges detailed in the datasheet.
FAQ - 13:Q: What happens if the EN pin is left unconnected? A: The EN pin should not be left unconnected, as it controls whether the device is enabled or disabled. If left unconnected, the state is undefined and may cause unpredictable behavior.
FAQ - 14:Q: Can I use a larger resistor for setting the ILIM current limit? A: Yes, but ensure the resistor value falls within the range specified in the datasheet to avoid overcurrent or undercurrent protection issues.
FAQ - 15:Q: How can I determine if the TPS22965DSGR is in shutdown mode? A: If the SHDN pin is set to a logic low state, the device will be in shutdown mode, and no power will be supplied to the outputs.
FAQ - 16:Q: Does the STATUS pin show error states? A: Yes, the STATUS pin indicates the health of the power path, which may include fault conditions like overcurrent or thermal shutdown.
FAQ - 17:Q: How do I protect the TPS22965DSGR from excessive current? A: Use the ILIM pin to set a current limit threshold. If the current exceeds the limit, the device will regulate the current to prevent damage.
FAQ - 18:Q: What is the purpose of the VDD pin in the device? A: The VDD pin powers the internal circuitry of the TPS22965DSGR, enabling the control logic to operate correctly.
FAQ - 19:Q: Can I replace the GND pin with an alternative ground? A: No, the GND pins must be connected to the system's ground. Using an alternative ground can lead to instability or incorrect operation.
FAQ - 20:Q: How can I verify the correct function of the OUT1 and OUT2 pins? A: Verify the voltage at OUT1 and OUT2 during operation to ensure they match the expected output voltages according to the input voltage and configuration settings.
This table and FAQ list provide a comprehensive guide to understanding the pin functions of the TPS22965DSGR power path switch.