TPS3808G30QDBVRQ1

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Programmable Delay Time
• Package: SOT-23-6
• 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
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.3V, 4.38V
• Adjustable Reset Timeout Period: 1.25ms to 10s
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TPS3808G30QDBVRQ1 has a total of 6 pins: 1. GND: Ground connection 2. VDD: Positive supply voltage input 3. MR#: Manual reset input (active-low) 4. RESET#: Reset output (active-low) 5. VIT: Voltage input for monitoring 6. CT: Capacitor connection for adjustable reset timeout

Functional Features

• Precision Monitoring: The TPS3808G30QDBVRQ1 accurately monitors the voltage level and provides a reliable reset signal when the voltage falls below the specified threshold.
• Programmable Delay Time: The reset timeout period can be adjusted using an external capacitor, allowing flexibility in defining the delay before asserting the reset signal.
• Low Power Consumption: With a quiescent current of only 1.5µA, the TPS3808G30QDBVRQ1 minimizes power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High precision voltage monitoring - Programmable reset delay time - Low power consumption - Wide operating temperature range

Disadvantages: - Limited number of available reset threshold voltage options - SOT-23-6 package may not be suitable for all applications

Working Principles

The TPS3808G30QDBVRQ1 operates by comparing the monitored voltage (VIT) with the selected reset threshold voltage. When VIT falls below the threshold, the reset output (RESET#) is asserted low, indicating a system reset condition. The reset signal remains active until the voltage rises above the threshold and the adjustable timeout period elapses.

Detailed Application Field Plans

The TPS3808G30QDBVRQ1 is commonly used in various applications where reliable voltage monitoring and system reset functionality are required. Some specific application fields include: 1. Microcontrollers: Ensuring proper system initialization and preventing erratic behavior during power-up or voltage fluctuations. 2. Industrial Control Systems: Providing fault detection and recovery mechanisms to maintain system integrity. 3. Automotive Electronics: Monitoring critical voltage levels in automotive systems to prevent malfunctions and ensure safe operation. 4. Battery-Powered Devices: Protecting battery life by initiating a reset when the voltage drops below a certain level.

Detailed and Complete Alternative Models

1. TPS3808G01: Similar voltage supervisor IC with fixed reset threshold voltage options.
2. TPS3839: Voltage supervisor IC with adjustable reset timeout and additional features like watchdog timer.
3. MAX809: Voltage monitor with fixed reset threshold voltage options and various package options.

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