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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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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van TPS3838K33DBVRG4 in technische oplossingen

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.