TPS3809I50QDBVRQ1

Product Overview

Category

The TPS3809I50QDBVRQ1 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: 5.0V
• Supply voltage range: 1.6V to 6.0V
• Low quiescent current: 3.5µA (typical)
• Wide operating temperature range: -40°C to +125°C
• Adjustable delay time
• Open-drain output
• Small package size: SOT23-6

Package and Quantity

The TPS3809I50QDBVRQ1 is available in a small SOT23-6 package. It is typically sold in reels with a quantity of 3000 units per reel.

Specifications

• Supply voltage range: 1.6V to 6.0V
• Threshold voltage accuracy: ±1.5%
• Quiescent current: 3.5µA (typical)
• Delay time options: 100ms, 200ms, 400ms, or 800ms
• Operating temperature range: -40°C to +125°C
• Output type: Open-drain

Pin Configuration

The TPS3809I50QDBVRQ1 has the following pin configuration:

```

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| | --| VDD | --| GND | --| MR | --| RESET | --| NRESET | |___________| ```

Functional Features

• Voltage monitoring: The TPS3809I50QDBVRQ1 continuously monitors the input voltage and asserts the reset signal when it falls below the specified threshold.
• Adjustable delay time: The device allows the user to select the desired delay time before asserting the reset signal.
• Open-drain output: The open-drain output provides flexibility in connecting to different systems.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for compatibility with various electronic systems.
• Low quiescent current minimizes power consumption.
• Adjustable delay time provides customization options.
• Small package size enables space-saving designs.

Disadvantages

• Limited threshold voltage accuracy of ±1.5% may not be suitable for applications requiring high precision.
• Open-drain output requires additional external components for proper signal level translation.

Working Principles

The TPS3809I50QDBVRQ1 operates by comparing the input voltage with the preset threshold voltage. When the input voltage falls below the threshold, the device asserts the reset signal, indicating a power failure or an abnormal condition. The delay time can be adjusted to allow for transient voltage fluctuations without triggering a false reset.

Application Field Plans

The TPS3809I50QDBVRQ1 finds applications in various fields, including: 1. Power supply monitoring in industrial control systems. 2. Battery-powered devices to prevent over-discharge. 3. Automotive electronics for voltage supervision. 4. Home automation systems for fault detection. 5. Medical equipment for reliable power monitoring.

Alternative Models

Some alternative models that offer similar functionality to the TPS3809I50QDBVRQ1 include: - TPS3808G01DBVR - MAX809TTRG - ADM6315-26D2ARTZ

These alternatives can be considered based on specific requirements and availability.

In conclusion, the TPS3809I50QDBVRQ1 is a voltage supervisor with adjustable delay time, low quiescent current, and a wide operating temperature range. It finds applications in various fields and has alternative models for consideration.