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TPS3838K33DBVRG4
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TPS3838K33DBVRG4

Product Overview

Category

The TPS3838K33DBVRG4 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and supervising the voltage levels in electronic systems.

Characteristics

  • Low-power consumption
  • Wide operating voltage range
  • High accuracy
  • Adjustable threshold voltage
  • Small package size

Package

The TPS3838K33DBVRG4 comes in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS3838K33DBVRG4 lies in its ability to provide reliable voltage monitoring and reset generation in various electronic systems.

Packaging/Quantity

This product is typically available in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

  • Supply Voltage Range: 1.6V to 6.5V
  • Threshold Voltage Options: 2.93V, 3.08V, 3.13V, 3.30V, 3.47V, 3.63V, 3.78V, 3.92V, 4.00V, 4.38V, 4.63V, 4.75V, 4.88V, 5.00V
  • Operating Temperature Range: -40°C to +125°C
  • Quiescent Current: 1.5µA (typical)
  • Power-On Reset Delay Time: 200ms (typical)

Detailed Pin Configuration

The TPS3838K33DBVRG4 has three pins:

  1. VDD: This pin is connected to the positive supply voltage.
  2. GND: This pin is connected to the ground or negative supply voltage.
  3. RESET: This pin outputs a reset signal when the monitored voltage falls below the threshold.

Functional Features

  • Voltage monitoring: The TPS3838K33DBVRG4 continuously monitors the input voltage and generates a reset signal when it falls below the programmed threshold.
  • Adjustable threshold: The threshold voltage can be adjusted to suit specific system requirements.
  • Power-on reset delay: The device provides a power-on reset delay to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages

  • Low-power consumption makes it suitable for battery-powered applications.
  • Wide operating voltage range allows compatibility with various systems.
  • Small package size enables use in space-constrained designs.
  • Adjustable threshold voltage offers flexibility in voltage monitoring.

Disadvantages

  • Limited threshold voltage options may not cover all possible voltage levels required by certain applications.
  • Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The TPS3838K33DBVRG4 operates based on a voltage comparator circuit. It compares the input voltage with the programmed threshold voltage. When the input voltage drops below the threshold, the reset output is activated, indicating a low-voltage condition. The reset remains active until the input voltage rises above the threshold again.

Detailed Application Field Plans

The TPS3838K33DBVRG4 finds applications in various fields, including:

  1. Battery-powered devices: It ensures proper functioning and prevents damage due to undervoltage conditions in portable electronics, medical devices, and IoT devices.
  2. Industrial control systems: It provides reliable voltage monitoring in industrial automation equipment, ensuring safe and stable operation.
  3. Automotive electronics: It safeguards critical components from voltage fluctuations in automotive systems, such as engine control units and safety systems.
  4. Power supply units: It assists in supervising the output voltage of power supplies, preventing damage to connected devices.

Detailed and Complete Alternative Models

  1. TPS3838K33DBVR: Similar to TPS3838K33DBVRG4, but without the "G4" suffix.
  2. TPS3838K33DBVT: This variant comes in a SOT-23 package with a different pin configuration.
  3. TPS3838K33DBVTE4: Similar to TPS3838K33DBVT, but with enhanced ESD protection.

These alternative models offer similar functionality and can be considered as substitutes for the TPS3838K33DBVRG4.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TPS3838K33DBVRG4 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TPS3838K33DBVRG4 in technical solutions:

  1. Q: What is the TPS3838K33DBVRG4? A: The TPS3838K33DBVRG4 is a voltage supervisor and reset IC designed for monitoring power supply voltages in microcontrollers, DSPs, and other digital systems.

  2. Q: What is the operating voltage range of TPS3838K33DBVRG4? A: The TPS3838K33DBVRG4 operates within a voltage range of 1.6V to 6.5V.

  3. Q: What is the purpose of the TPS3838K33DBVRG4 in a technical solution? A: The TPS3838K33DBVRG4 ensures proper system initialization by monitoring the power supply voltage and generating a reset signal when it falls below a specified threshold.

  4. Q: How does the TPS3838K33DBVRG4 generate a reset signal? A: The TPS3838K33DBVRG4 uses an internal comparator to compare the monitored voltage with a reference voltage. When the monitored voltage drops below the reference voltage, it triggers the reset signal.

  5. Q: Can the threshold voltage of the TPS3838K33DBVRG4 be adjusted? A: No, the TPS3838K33DBVRG4 has a fixed threshold voltage of 3.08V.

  6. Q: What is the typical reset time delay of the TPS3838K33DBVRG4? A: The typical reset time delay of the TPS3838K33DBVRG4 is 200ms.

  7. Q: Does the TPS3838K33DBVRG4 have an open-drain or push-pull output? A: The TPS3838K33DBVRG4 has an open-drain output.

  8. Q: What is the maximum supply current of the TPS3838K33DBVRG4? A: The maximum supply current of the TPS3838K33DBVRG4 is 5µA.

  9. Q: Can the TPS3838K33DBVRG4 operate in a wide temperature range? A: Yes, the TPS3838K33DBVRG4 can operate within a temperature range of -40°C to +125°C.

  10. Q: Is the TPS3838K33DBVRG4 available in a small package? A: Yes, the TPS3838K33DBVRG4 is available in a small SOT-23 package, which makes it suitable for space-constrained applications.

Please note that these answers are based on general information and may vary depending on the specific datasheet and application requirements.