TPS2105DBVR

Product Overview

Category

The TPS2105DBVR belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage supervision: The TPS2105DBVR ensures that the voltage remains within specified limits.
• Reset functionality: It can generate a reset signal when the voltage falls below a certain threshold.
• Low power consumption: The device operates with low power requirements, making it suitable for battery-powered applications.
• Wide operating voltage range: It can handle a wide range of input voltages, enhancing its versatility.
• Small package size: The TPS2105DBVR comes in a compact package, saving space on circuit boards.

Package

The TPS2105DBVR is available in a small SOT-23 package.

Essence

The essence of the TPS2105DBVR lies in its ability to monitor and control voltage levels effectively, ensuring stable operation of electronic circuits.

Packaging/Quantity

The TPS2105DBVR is typically sold in reels containing a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 1.8V to 6.5V
• Threshold Voltage Accuracy: ±1.5%
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)
• Power-On Reset Time: 20ms (typical)

Detailed Pin Configuration

The TPS2105DBVR has three pins:

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

Functional Features

• Undervoltage Detection: The TPS2105DBVR continuously monitors the input voltage and detects when it falls below a predetermined threshold.
• Reset Signal Generation: When the input voltage drops below the threshold, the TPS2105DBVR generates a reset signal to initiate a system reset or shutdown sequence.
• Hysteresis: The device incorporates hysteresis to prevent oscillation near the threshold voltage, ensuring stable operation.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable circuit operation.
• Low power consumption extends battery life in portable devices.
• Wide operating voltage range enhances compatibility with various applications.
• Small package size saves space on circuit boards.

Disadvantages

• Limited to voltage supervision functionality, may require additional components for more complex applications.
• Not suitable for high-voltage applications beyond its specified range.

Working Principles

The TPS2105DBVR operates by comparing the input voltage with a reference voltage. If the input voltage falls below the threshold, the device generates a reset signal. This signal can be used to trigger a system reset or initiate a shutdown sequence, ensuring safe operation of the circuit.

Detailed Application Field Plans

The TPS2105DBVR finds application in various electronic systems that require voltage monitoring and control. Some potential fields of application include:

1. Battery-Powered Devices: Portable electronics such as smartphones, tablets, and wearable devices benefit from the TPS2105DBVR's low power consumption and accurate voltage monitoring.
2. Industrial Control Systems: The device can be used in industrial control systems to ensure stable operation and protect sensitive components from undervoltage conditions.
3. Automotive Electronics: The TPS2105DBVR can be employed in automotive applications to monitor critical voltage levels and trigger appropriate actions in case of voltage fluctuations.

Detailed and Complete Alternative Models

1. TPS2104DBVR: Similar to the TPS2105DBVR, but with a different threshold voltage.
2. TPS2106DBVR: Similar to the TPS2105DBVR, but with a wider operating voltage range.
3. TPS2110DBVR: A voltage supervisor with additional power-switching capabilities.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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