TPS3831K50DQNR

Product Overview

Category

The TPS3831K50DQNR 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 threshold voltage
• Small package size

Package

The TPS3831K50DQNR comes in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS3831K50DQNR lies in its ability to provide accurate voltage monitoring and supervision, ensuring the reliable operation of electronic systems.

Packaging/Quantity

The product is typically available in reels containing a specified quantity of units, such as 3000 pieces per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Accuracy: ±1.5%
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Output Type: Active-Low, Open Drain

Detailed Pin Configuration

The TPS3831K50DQNR has three pins:

1. GND: Ground connection.
2. VDD: Power supply input.
3. RESET: Active-low reset output.

Functional Features

• Undervoltage detection: Monitors the input voltage and asserts the reset signal when it falls below the threshold voltage.
• Precision voltage reference: Provides accurate voltage monitoring with a low threshold voltage deviation.
• Power-on reset delay: Ensures that the reset signal remains asserted for a specific duration after power is applied or restored.
• Manual reset input: Allows for an external reset signal to override the internal voltage monitoring.

Advantages and Disadvantages

Advantages

• Low-power consumption enables energy-efficient operation.
• Wide operating voltage range makes it compatible with various electronic systems.
• Adjustable threshold voltage allows for customization based on specific requirements.
• Small package size facilitates integration into space-constrained designs.

Disadvantages

• Limited output options (only active-low, open drain).
• Not suitable for applications requiring high-speed voltage monitoring.

Working Principles

The TPS3831K50DQNR operates by comparing the input voltage with a precision reference voltage. When the input voltage falls below the threshold voltage, the reset output is asserted, indicating an undervoltage condition. The reset signal remains active until the input voltage rises above the threshold and the power-on reset delay time elapses.

Detailed Application Field Plans

The TPS3831K50DQNR finds applications in various fields, including:

1. Battery-powered devices: Ensures proper functioning by monitoring battery voltage levels.
2. Industrial control systems: Provides voltage supervision to prevent malfunctions or damage.
3. Automotive electronics: Monitors voltage stability in automotive systems to ensure reliable operation.
4. IoT devices: Enables efficient power management and system protection in connected devices.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TPS3831K50DQNR include:

1. TPS3830K33DBVR
2. MAX823LEUK-T
3. ADM6315-26D2ARTZ-RL7
4. MCP100T-315I/TT

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

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