TPS3837K33QDBVRQ1

Product Overview

Category

The TPS3837K33QDBVRQ1 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage threshold: 3.3V
• Low quiescent current: 1.5µA (typical)
• Wide operating temperature range: -40°C to 125°C
• Adjustable delay time
• Power-on reset generator
• Open-drain output
• Small package size: SOT-23-5

Package

The TPS3837K33QDBVRQ1 is packaged in a small SOT-23-5 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS3837K33QDBVRQ1 is its ability to monitor and supervise voltage levels, ensuring proper functioning of electronic systems.

Packaging/Quantity

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

Specifications

• Supply voltage range: 1.8V to 10V
• Threshold accuracy: ±2%
• Delay time options: 20ms, 50ms, 100ms, 200ms, 400ms, or 800ms
• Output type: Active-low, open-drain

Detailed Pin Configuration

The TPS3837K33QDBVRQ1 has the following pin configuration:

1. GND (Ground)
2. VDD (Supply voltage)
3. MR (Manual reset input)
4. RESET (Reset output)
5. NC (No connection)

Functional Features

• Power-on reset generation: The TPS3837K33QDBVRQ1 generates a reset signal upon power-up to ensure a controlled start-up of the system.
• Voltage monitoring: It continuously monitors the supply voltage and asserts the reset signal if the voltage falls below the threshold.
• Adjustable delay time: The delay time before asserting the reset signal can be adjusted to suit specific system requirements.
• Open-drain output: The reset output is an open-drain configuration, allowing for flexibility in interfacing with other devices.

Advantages and Disadvantages

Advantages

• Low quiescent current consumption ensures minimal power wastage.
• Wide operating temperature range makes it suitable for various environments.
• Adjustable delay time allows customization for different applications.
• Small package size enables usage in space-constrained designs.

Disadvantages

• Limited voltage threshold options may not cater to all voltage level monitoring needs.
• Lack of integrated hysteresis may result in potential noise-induced false triggering.

Working Principles

The TPS3837K33QDBVRQ1 operates by comparing the supply voltage against a fixed threshold. If the voltage drops below the threshold, the reset output is asserted, indicating a power failure or abnormal voltage condition. The delay time can be adjusted to allow for transient voltage fluctuations without triggering a reset. Once the voltage rises above the threshold and the delay time elapses, the reset output is de-asserted.

Detailed Application Field Plans

The TPS3837K33QDBVRQ1 finds application in various fields, including but not limited to: - Automotive electronics: Ensuring reliable operation of critical systems in vehicles. - Industrial automation: Monitoring voltage levels in control systems and equipment. - Consumer electronics: Protecting sensitive components from voltage fluctuations. - Medical devices: Ensuring proper functioning and patient safety in medical equipment. - Power management: Enabling efficient power supply supervision in various applications.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TPS3837K33QDBVRQ1 include: - TPS3836: 2.93V threshold voltage, SOT-23-5 package - TPS3839: 3.08V threshold voltage, SOT-23-5 package - TPS3840: 4.63V threshold voltage, SOT-23-5 package

These alternative models provide options for different voltage thresholds to suit specific system requirements.

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