TPS3808G30DBVT

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Programmable Delay Time
• Package: SOT-23 (DBV)
• Essence: Monitors voltage levels and provides reset signals to microcontrollers or other digital systems.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.3V, 4.38V
• Reset Timeout Period: Programmable from 1.25ms to 10s
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The TPS3808G30DBVT has the following pin configuration:

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

Functional Features

• Precision Monitoring: The TPS3808G30DBVT accurately monitors the supply voltage and provides a reset signal when it falls below the threshold voltage.
• Programmable Delay Time: The reset timeout period can be programmed using an external capacitor, allowing flexibility in system design.
• Low Power Consumption: With a quiescent current of only 1.5µA, the TPS3808G30DBVT minimizes power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Programmable delay time enables customization for specific application requirements. - Low power consumption prolongs battery life in portable devices.

Disadvantages: - Limited threshold voltage options may not cover all voltage monitoring needs. - SOT-23 package may limit heat dissipation in high-power applications.

Working Principles

The TPS3808G30DBVT operates by continuously monitoring the supply voltage. When the voltage falls below the programmed threshold, the reset output is asserted low, indicating a system reset condition. The reset remains active until the supply voltage rises above the threshold and the delay time elapses.

Detailed Application Field Plans

The TPS3808G30DBVT is commonly used in various applications where reliable voltage monitoring and system reset functionality are required. Some typical application fields include:

1. Microcontroller Systems: Ensures proper operation by monitoring the supply voltage and initiating a reset if necessary.
2. Industrial Control Systems: Provides fault detection and system recovery capabilities in critical control applications.
3. Automotive Electronics: Monitors battery voltage to prevent undervoltage conditions and protect sensitive electronic components.
4. Power Management Systems: Enables efficient power management by monitoring supply voltages and controlling system states.

Detailed and Complete Alternative Models

1. TPS3808G01DBVR: Similar to TPS3808G30DBVT but with a fixed threshold voltage of 2.93V.
2. TPS3808G33DBVR: Similar to TPS3808G30DBVT but with a fixed threshold voltage of 3.3V.
3. TPS3808G33DBVT: Similar to TPS3808G30DBVT but packaged in SOT-23 (DBT) instead of SOT-23 (DBV).
4. TPS3808G33DCKR: Similar to TPS3808G30DBVT but packaged in SC-70 (DK) instead of SOT-23 (DBV).

These alternative models offer different threshold voltage options and package variations to suit specific application requirements.

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