TPS3813I50DBVTG4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Precision, Low Power Consumption
• Package: SOT-23 (Small Outline Transistor)
• Essence: Monitors and controls the voltage level in electronic systems
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Accuracy: ±0.5%
• Quiescent Current: 2.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low, Open Drain
• Power-On Reset Delay Time: 200ms (typical)

Detailed Pin Configuration

The TPS3813I50DBVTG4 IC has the following pin configuration:

1. GND (Ground): Connected to the ground reference of the system.
2. VDD (Supply Voltage): Connected to the positive supply voltage of the system.
3. RESET (Reset Output): Active-low open-drain output that indicates the system reset status.

Functional Features

• Voltage Monitoring: Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
• Power-On Reset: Provides a delayed reset signal upon power-up to ensure proper initialization of the system.
• Precision Threshold: Offers accurate voltage monitoring with a low threshold voltage accuracy of ±0.5%.
• Low Power Consumption: Consumes minimal quiescent current, making it suitable for battery-powered applications.
• Open-Drain Output: The reset output is an active-low open-drain, allowing easy interfacing with other devices.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable operation of electronic systems. - Low power consumption extends battery life in portable devices. - Small package size enables space-saving designs. - Open-drain output simplifies interfacing with other components.

Disadvantages: - Limited supply voltage range (1.6V to 6.5V) may not be suitable for all applications. - Active-low reset signal may require additional circuitry for compatibility with active-high reset inputs.

Working Principles

The TPS3813I50DBVTG4 is a voltage supervisor IC that continuously monitors the supply voltage of an electronic system. It compares the input voltage with a precise threshold and generates a reset signal when the voltage falls below the threshold. This reset signal can be used to initiate a system reset or trigger other actions.

During power-up, the TPS3813I50DBVTG4 provides a delayed reset signal to ensure proper initialization of the system. Once the supply voltage rises above the threshold, the reset output becomes inactive. The open-drain output configuration allows multiple devices to share the same reset line.

Detailed Application Field Plans

The TPS3813I50DBVTG4 is commonly used in various applications where reliable voltage monitoring is critical. Some typical application fields include:

1. Microcontrollers: Ensures proper operation by monitoring the supply voltage and initiating a reset if necessary.
2. Industrial Control Systems: Provides voltage supervision to prevent malfunctions and ensure system integrity.
3. Automotive Electronics: Monitors the vehicle's electrical system to prevent damage due to voltage fluctuations.
4. Battery-Powered Devices: Maximizes battery life by monitoring the voltage and initiating low-power modes when necessary.
5. Communication Equipment: Protects sensitive circuitry from voltage variations and ensures uninterrupted operation.

Detailed and Complete Alternative Models

1. TPS3808G01DBVR: Similar voltage supervisor IC with a higher supply voltage range (1.6V to 10V).
2. MAX809SEUR-T: Voltage supervisor IC with a wider temperature range (-40°C to +125°C).
3. ADM6315-26D2ARTZ-R7: Precision voltage monitor with an active-high reset output.
4. MCP1316T-29LE/OT: Low-power voltage supervisor IC with a supply voltage range of 1.0V to 5.5V.

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

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