TPS2100DBVR

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisor

Characteristics: - Monitors the voltage level of a power supply - Generates a reset signal when the voltage falls below a specified threshold - Prevents system malfunction during power fluctuations or failures

Package: SOT-23-5

Essence: The TPS2100DBVR is a voltage supervisor IC designed to ensure stable operation of electronic systems by monitoring the power supply voltage and generating a reset signal when necessary.

Packaging/Quantity: The TPS2100DBVR is available in a SOT-23-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Supply Voltage Range: 1.8V to 6.5V
• Reset Threshold Voltage Options: 2.32V, 2.93V, 3.08V, 4.38V, 4.63V, 4.88V
• Reset Timeout Period: 100ms, 200ms, 400ms, 800ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS2100DBVR has five pins arranged as follows:

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Pin Descriptions: 1. GND: Ground connection 2. MR: Manual reset input (active-low) 3. VDD: Power supply voltage input 4. RESET: Reset output 5. VOUT: Output voltage for external capacitor

Functional Features

1. Voltage Monitoring: The TPS2100DBVR continuously monitors the power supply voltage to detect any deviations from the desired range.
2. Reset Generation: When the voltage falls below the specified threshold, the TPS2100DBVR generates a reset signal to initiate system reset or shutdown.
3. Manual Reset: The MR pin allows for manual reset control by pulling it low.
4. Adjustable Threshold and Timeout: The IC offers multiple options for threshold voltage and timeout period, allowing flexibility in system design.
5. Low Power Consumption: The TPS2100DBVR operates with low power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Ensures system stability during power fluctuations - Adjustable threshold and timeout options for customization - Compact SOT-23-5 package for space-constrained designs - Low power consumption for energy-efficient operation

Disadvantages: - Limited number of available threshold voltage options - Manual reset functionality may not be required in all applications

Working Principles

The TPS2100DBVR works by comparing the power supply voltage with the set threshold voltage. If the voltage drops below the threshold, the internal circuitry triggers the reset output, which can be used to reset or shut down the system. The timeout period determines how long the reset signal remains active after the voltage returns to normal.

Detailed Application Field Plans

The TPS2100DBVR is commonly used in various electronic systems where stable operation is critical. Some application fields include: 1. Microcontrollers: Ensures reliable operation of microcontroller-based systems by preventing data corruption during power fluctuations. 2. Industrial Control Systems: Protects sensitive industrial equipment from damage caused by sudden power interruptions. 3. Automotive Electronics: Provides voltage supervision in automotive applications, preventing malfunctions due to voltage variations. 4. Telecommunications: Ensures uninterrupted communication by resetting network devices during power disturbances. 5. Consumer Electronics: Enhances the reliability of consumer electronic devices, such as smart home systems and IoT devices.

Detailed and Complete Alternative Models

1. TPS2101DBVR: Similar to TPS2100DBVR but with additional power-on reset delay feature.
2. TPS2110DBVR: Dual-channel voltage supervisor IC for monitoring multiple power supplies simultaneously.
3. TPS2140DBVR: Voltage supervisor IC with adjustable threshold voltage and integrated watchdog timer.

These alternative models offer similar functionality to the TPS2100DBVR but may have additional features or different specifications to suit specific application requirements.

In conclusion, the TPS2100DBVR is a voltage supervisor IC that plays a crucial role in ensuring stable operation of electronic systems. With its compact package, adjustable settings, and low power consumption, it finds applications in various fields where reliable voltage monitoring is essential.