TPS3808G33DBVT

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Low Power Consumption - Wide Supply Voltage Range - Adjustable Threshold Voltage - Precision Monitoring - Small Package Size

Package: SOT-23 (DBV)

Essence: The TPS3808G33DBVT is a voltage supervisor IC that monitors the power supply voltage of a system and provides a reset signal to the microcontroller or other digital logic when the voltage falls below a certain threshold.

Packaging/Quantity: The TPS3808G33DBVT is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.3V, 4.38V
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Push-Pull

Pin Configuration

The TPS3808G33DBVT has a total of 5 pins:

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. MR (Manual Reset): An active-low input used to force a reset condition.
4. RESET (Reset Output): Active-low push-pull output that goes low when the monitored voltage falls below the threshold.
5. N/C (No Connection): This pin is not connected and should be left unconnected.

Functional Features

• Precision monitoring of supply voltage.
• Adjustable threshold voltage allows customization for different applications.
• Low quiescent current ensures minimal power consumption.
• Active-low reset output provides a reliable signal to the microcontroller or digital logic.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Adjustable threshold voltage provides flexibility for different voltage monitoring requirements. - Small package size (SOT-23) enables space-saving designs. - Low power consumption minimizes energy usage.

Disadvantages: - Limited threshold voltage options may not cover all voltage monitoring needs. - Active-low reset output may require additional circuitry for certain applications.

Working Principles

The TPS3808G33DBVT operates by continuously monitoring the supply voltage. When the voltage falls below the programmed threshold, the reset output is activated, indicating a low-voltage condition. This signal can be used to reset the microcontroller or other digital logic, ensuring proper operation under low voltage conditions.

Detailed Application Field Plans

The TPS3808G33DBVT is commonly used in various applications where voltage supervision is critical. Some of the typical application fields include:

1. Battery-Powered Devices: Ensuring proper shutdown or hibernation when the battery voltage drops below a safe level.
2. Industrial Control Systems: Monitoring power supply voltages to prevent damage or data corruption during voltage fluctuations.
3. Automotive Electronics: Protecting sensitive electronic components from voltage dips or spikes in automotive environments.
4. Home Automation: Providing reliable reset signals to microcontrollers controlling home automation systems.
5. Medical Devices: Ensuring safe operation and preventing data loss in medical equipment during voltage variations.

Detailed and Complete Alternative Models

1. TPS3809I50DBVR
2. TPS3809K33DBVR
3. TPS3809L30DBVR
4. TPS3809M33DBVR
5. TPS3809N30DBVR

These alternative models offer similar voltage monitoring capabilities with slight variations in threshold voltages and package options. It is recommended to review the datasheets of these alternatives for specific application requirements.

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