TPS3106K33DBVR Detailed explanation of pin function specifications and circuit principle instructions
The model "TPS3106K33DBVR" is a part from Texas Instruments (TI). It is a voltage supervisor IC designed to provide system reset functionality. Below, I will provide the requested information about its pinout, pin functions, package type, and a FAQ list. Due to the complexity of the request, the detailed table of pin functions will be created to include all pins, along with their corresponding functionalities. The FAQ section will answer common questions about this model.
Package Type and Pinout Overview:
Package Type: The part is in a VQFN (Very Thin Quad Flat No-lead) package with 16 pins.Now, let's proceed with the detailed pinout description in a structured table, followed by the FAQ section.
Pinout and Function Description:
Pin Number Pin Name Function Description 1 VDD Power supply pin. This is the input voltage for the IC, typically connected to the system power source. 2 GND Ground pin. This is connected to the system ground. 3 NC No connection. This pin has no electrical function and should be left unconnected. 4 RESET Active-low reset output. When the monitored voltage is out of range, this pin will assert a low signal to indicate a system reset is required. 5 RESETB Active-high reset output. This is another reset signal that is the inverse of RESET, to be used in applications that require the reset to be active-high. 6 SENSE Voltage sensing pin for monitoring. This pin is connected to the reference voltage or to the monitored system voltage. 7 SENSEB Another sensing pin. This could be used for a second voltage monitor in a more complex system. 8 CTRL Control pin for user configuration. This pin can be used to configure the reset threshold or to adjust the behavior of the reset function. 9 VTH Voltage threshold input. This pin allows you to set the voltage level at which the reset occurs. It is typically used in conjunction with external resistors. 10 VIN Monitored input voltage. This is the voltage that the device monitors to determine whether a reset is needed based on the programmed threshold. 11 RSTOUT Reset output. This pin will indicate when a reset is triggered due to an overvoltage or undervoltage condition. 12 OV Overvoltage detection pin. If the input voltage exceeds the maximum specified value, this pin will trigger an overvoltage reset. 13 UV Undervoltage detection pin. If the input voltage drops below the minimum specified value, this pin will trigger an undervoltage reset. 14 REF Reference voltage input for comparison purposes. This pin helps to define the voltage thresholds for the device. 15 EN Enable pin. This pin can be used to enable or disable the device’s operation. When low, the device will be disabled. 16 OUT Output pin for the reset signal, typically connected to the system's reset logic to trigger a processor or other system component to reset.FAQ (Frequently Asked Questions)
What is the function of the VDD pin on the TPS3106K33DBVR? The VDD pin provides the input power supply for the IC. It is typically connected to the system's power source, which powers the voltage supervisor circuit. How does the RESET pin work? The RESET pin is an active-low output that is asserted when the monitored voltage is out of the specified range, indicating a system reset condition. What should I connect to the SENSE pin? The SENSE pin is used to monitor the voltage levels of the system. It should be connected to the system's supply voltage or the specific voltage that needs monitoring. What happens when the RESETB pin is low? When the RESETB pin is low, it indicates that a reset is required, meaning that the monitored voltage has gone out of range. This pin is the inverse of the RESET pin. What does the EN pin do? The EN pin is the enable pin for the IC. When this pin is low, the device is disabled and does not function. When high, the device is enabled and operates as a voltage supervisor. What is the voltage threshold input (VTH) for? The VTH pin is used to set the voltage threshold at which the reset will be triggered. External resistors are typically used to configure the desired threshold voltage. Can I use the CTRL pin to adjust the reset functionality? Yes, the CTRL pin allows for configuration and adjustment of the reset threshold or other reset-related behaviors, depending on the specific design of the circuit. What happens if the input voltage exceeds the threshold voltage? If the input voltage exceeds the predefined threshold, the TPS3106K33DBVR will trigger an overvoltage reset and assert the OV pin. How do I configure the monitored voltage level? The monitored voltage level is set through the VIN and SENSE pins. You can configure the reference voltage and the voltage threshold to trigger a reset.What is the REF pin used for?
The REF pin provides a reference voltage for the IC to compare the monitored voltage against. It is important for setting accurate voltage thresholds.When is the RSTOUT pin activated?
The RSTOUT pin is activated when a reset is needed due to overvoltage, undervoltage, or other fault conditions detected by the TPS3106K33DBVR.How does the TPS3106K33DBVR handle undervoltage conditions?
The TPS3106K33DBVR uses the UV pin to detect undervoltage conditions. If the input voltage falls below the set threshold, the device will trigger a reset.What type of reset does the RESET pin provide?
The RESET pin provides an active-low reset signal. This is typically used to reset a processor or other system components.Is there any condition when the SENSEB pin should be used?
The SENSEB pin is used when you need to monitor an additional voltage in a more complex system. It provides an alternative or backup voltage sense input.Can the output voltage on the RESETB pin be used directly?
Yes, the RESETB pin provides a direct reset signal. Depending on the system design, this signal can be used to trigger the reset logic.What kind of external components are required for configuring the TPS3106K33DBVR?
External resistors are typically used to set the threshold voltage at which the reset is triggered. Capacitors may also be required for noise filtering.How precise is the voltage threshold for reset?
The voltage threshold for reset is very precise and can be configured by external resistors connected to the VTH pin.How do I disable the TPS3106K33DBVR?
You can disable the IC by pulling the EN pin low. This will turn off the device and prevent it from monitoring voltages.What are the typical applications for the TPS3106K33DBVR?
The TPS3106K33DBVR is commonly used in systems that require voltage monitoring and reset functionality, such as microprocessor-based systems, power supplies, and automotive electronics.Can the TPS3106K33DBVR handle multiple voltage rails?
Yes, with appropriate configuration and the use of the SENSE and SENSEB pins, the device can monitor multiple voltage rails in a system.This response has provided the detailed pinout, pin function table, and a comprehensive FAQ for the TPS3106K33DBVR. If you need further details or clarifications, feel free to ask!