TPS3839G33DBZR

Product Overview

Category

The TPS3839G33DBZR belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

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

Package

The TPS3839G33DBZR is available in a small SOT-23 package.

Essence

The essence of TPS3839G33DBZR lies in its ability to provide accurate voltage monitoring and reset generation for microcontrollers and other digital systems.

Packaging/Quantity

The product is typically sold in reels, with each reel containing a specified quantity of TPS3839G33DBZR units.

Specifications

• Supply Voltage Range: 1.5V to 10V
• Reset Threshold Voltage: Adjustable from 2.93V to 3.08V
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 1.5µA (typical)
• Power-On Reset Delay Time: 200ms (typical)

Detailed Pin Configuration

The TPS3839G33DBZR has three pins:

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

Functional Features

• Accurate voltage monitoring: The TPS3839G33DBZR ensures precise monitoring of the input voltage.
• Adjustable reset threshold: The reset threshold voltage can be adjusted within a specific range to suit different applications.
• Power-on reset delay: The device provides a delay time 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 space-saving designs.
• Adjustable reset threshold provides flexibility in different voltage monitoring scenarios.

Disadvantages

• Limited number of pins may restrict the device's functionality in complex circuits.
• Lack of built-in protection features against voltage spikes or transients.

Working Principles

The TPS3839G33DBZR operates by continuously monitoring the input voltage. When the voltage falls below the set threshold, the device generates a reset signal to initiate a system reset. This ensures that the microcontroller or digital system starts from a known state.

Detailed Application Field Plans

The TPS3839G33DBZR finds applications in various fields, including:

1. Battery-powered devices: It can be used to monitor battery voltage and initiate actions when the voltage drops below a certain level.
2. Industrial automation: The device ensures reliable operation of control systems by monitoring supply voltages and initiating resets if necessary.
3. Automotive electronics: It can be employed to monitor critical voltages in automotive systems, such as engine control units or safety modules.

Detailed and Complete Alternative Models

Some alternative models to the TPS3839G33DBZR include:

1. TPS3839K33DBZR: Similar to TPS3839G33DBZR but with a fixed reset threshold voltage of 3.3V.
2. TPS3839J33DBZR: Another variant with a fixed reset threshold voltage of 3.3V, but with a different package type (SOT-23-5).

These alternative models offer similar functionalities but may have slight differences in specifications or package options.

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