TPS3110E12DBVT

Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor and Reset Generator

Characteristics: - Monitors the voltage level of a power supply - Generates a reset signal when the voltage falls below a specified threshold - Ensures proper operation of microcontrollers and other digital systems

Package: SOT-23-5

Essence: The TPS3110E12DBVT is an IC that provides voltage supervision and reset generation functionality. It is commonly used in electronic devices to ensure reliable operation by monitoring the power supply voltage and generating a reset signal when necessary.

Packaging/Quantity: The TPS3110E12DBVT is available in a small SOT-23-5 package, which contains one IC per package.

Specifications

• Supply Voltage Range: 1.2V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, 4.88V, 5.13V, 5.38V
• Reset Timeout Period: 200ms, 400ms, 600ms, 1200ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS3110E12DBVT has the following pin configuration:

```

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| | --| VDD | --| GND | --| MR | --| RESET | --| VIT | |_______| ```

• VDD: Power supply input
• GND: Ground reference
• MR: Manual reset input (active-low)
• RESET: Reset output
• VIT: Voltage input

Functional Features

1. Voltage Monitoring: The TPS3110E12DBVT continuously monitors the voltage level at the VIT pin.
2. Threshold Detection: When the voltage falls below the programmed threshold, the IC triggers a reset signal.
3. Reset Generation: The RESET pin outputs a reset signal to the microcontroller or digital system, ensuring a controlled restart.
4. Manual Reset: The MR pin allows for manual triggering of a reset signal when pulled low.
5. Adjustable Parameters: The IC offers various options for threshold voltage and reset timeout period, allowing customization based on specific requirements.

Advantages

• Compact size and easy integration due to the SOT-23-5 package
• Wide supply voltage range enables compatibility with different power sources
• Adjustable threshold voltage and reset timeout period offer flexibility in design
• Manual reset capability provides additional control over system operation
• Low power consumption ensures efficient operation

Disadvantages

• Limited number of threshold voltage options may not cover all voltage monitoring scenarios
• Lack of built-in protection features against voltage spikes or transients

Working Principles

The TPS3110E12DBVT operates by comparing the voltage at the VIT pin with the programmed threshold voltage. If the voltage drops below the threshold, the IC generates a reset signal on the RESET pin. This reset signal can be used to initiate a controlled restart of the microcontroller or digital system, ensuring proper functioning even in the presence of voltage fluctuations or power supply issues.

Application Field Plans

The TPS3110E12DBVT is widely used in various electronic devices and systems that require reliable voltage monitoring and reset generation. Some common application areas include:

1. Microcontrollers: Ensuring stable operation and preventing data corruption during power supply fluctuations.
2. Embedded Systems: Providing a reset mechanism for critical components in embedded systems.
3. Industrial Control Systems: Maintaining system integrity and preventing malfunctions in industrial control applications.
4. Automotive Electronics: Protecting sensitive electronic components from voltage variations in automotive systems.
5. Power Management: Enabling efficient power management by monitoring supply voltages in power-sensitive devices.

Alternative Models

1. TPS3110E09DBVT: Similar functionality with a different threshold voltage range (0.9V to 6.5V).
2. TPS3110E15DBVT: Similar functionality with a different threshold voltage range (1.5V to 6.5V).
3. TPS3110E18DBVT: Similar functionality with a different threshold voltage range (1.8V to 6.5V).

These alternative models provide similar voltage supervision and reset generation capabilities but offer different threshold voltage options to cater to specific application requirements.

In conclusion, the TPS3110E12DBVT is an integrated circuit that plays a crucial role in ensuring reliable operation of microcontrollers and digital systems. With its voltage monitoring and reset generation features, it provides stability and protection against power supply fluctuations. Its compact size, adjustable parameters, and manual reset capability