TPS3103E12DBVT

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Voltage Monitoring
• Package: SOT-23 (DBV)
• Essence: Monitors and controls the voltage level of a system
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.23V, 3.38V, 3.63V, 4.00V, 4.38V, 4.63V
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low, Open Drain
• Accuracy: ±1.5% (typical)

Detailed Pin Configuration

The TPS3103E12DBVT has three pins:

1. VDD: Connects to the positive supply voltage.
2. GND: Connects to the ground or negative supply voltage.
3. RESET: Active-low output that indicates the monitored voltage is below the threshold.

Functional Features

• Voltage Monitoring: The TPS3103E12DBVT continuously monitors the supply voltage and provides an active-low reset signal when the voltage falls below the programmed threshold.
• Precision: With an accuracy of ±1.5%, it ensures reliable voltage monitoring.
• Low Power Consumption: The IC operates with a quiescent current of only 1.5µA, making it suitable for battery-powered applications.
• Reset Delay: It includes a fixed delay of 200ms to ensure stable operation during power-up or voltage transients.

Advantages and Disadvantages

Advantages: - Low power consumption extends battery life. - Wide supply voltage range allows for versatile applications. - Accurate voltage monitoring ensures system reliability.

Disadvantages: - Limited threshold voltage options may not suit all applications. - Fixed reset delay may not be adjustable for specific requirements.

Working Principles

The TPS3103E12DBVT operates by comparing the supply voltage with a programmed threshold voltage. When the supply voltage falls below the threshold, the active-low reset output is asserted. The reset remains active until the supply voltage rises above the threshold and the reset delay time elapses.

Detailed Application Field Plans

The TPS3103E12DBVT finds applications in various fields, including:

1. Battery-Powered Devices: It ensures proper shutdown or warning when the battery voltage drops below a critical level.
2. Industrial Control Systems: It provides voltage supervision to prevent malfunctions due to low supply voltage.
3. Automotive Electronics: It monitors the vehicle's electrical system to prevent damage caused by voltage fluctuations.
4. Home Automation: It enables reliable monitoring of power supply voltages in smart home devices.

Detailed and Complete Alternative Models

1. TPS3103E15DBVT: Similar to TPS3103E12DBVT but with different threshold voltage options.
2. TPS3103E18DBVT: Another variant with higher threshold voltage options.
3. TPS3103E12DBVR: Same features as TPS3103E12DBVT but in a smaller SOT-23 package.

These alternative models offer similar functionality with slight variations in threshold voltage options or package size.

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