TPS3808G12DBVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Programmable Delay Time
• Package: SOT-23-5
• 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, 3.63V, 4.38V, 4.63V, 4.88V
• Adjustable Reset Timeout Period: 1.25ms to 10s
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TPS3808G12DBVR has a total of 5 pins:

1. GND: Ground connection
2. VDD: Positive supply voltage input
3. MR: Manual Reset input (active-low)
4. RESET: Reset output
5. N/C: No Connection

Functional Features

• Precision monitoring of supply voltage
• Programmable reset threshold voltage options
• Adjustable reset timeout period
• Manual reset capability
• Open-drain reset output

Advantages and Disadvantages

Advantages: - Low power consumption - Wide supply voltage range - Small package size - Programmable features for flexibility - Reliable reset signal generation

Disadvantages: - Limited number of reset threshold voltage options - Lack of built-in hysteresis

Working Principles

The TPS3808G12DBVR is designed to monitor the supply voltage of a system. It compares the voltage at the VDD pin with a programmable threshold voltage. If the supply voltage drops below the threshold, the reset output is asserted. The reset signal remains active until the supply voltage rises above the threshold and the adjustable timeout period elapses. The manual reset input (MR) allows for an immediate reset regardless of the monitored voltage level.

Detailed Application Field Plans

The TPS3808G12DBVR is commonly used in various applications where reliable voltage monitoring and reset generation are crucial. Some typical application fields include:

1. Microcontroller Systems: Ensures proper initialization and safe operation of microcontrollers by providing a reset signal when the supply voltage falls below a specified threshold.
2. Industrial Control Systems: Monitors power supply voltages in industrial control systems to prevent malfunctions or data corruption during voltage fluctuations.
3. Automotive Electronics: Protects automotive electronic systems from voltage dips or spikes, ensuring stable operation and preventing damage to sensitive components.
4. Battery-Powered Devices: Guards against undervoltage conditions in battery-powered devices, preventing unexpected shutdowns and preserving data integrity.

Detailed and Complete Alternative Models

• TPS3809I50DBVR
• TPS3809K33DBVR
• TPS3809L30DBVR
• TPS3809M18DBVR
• TPS3809N25DBVR

These alternative models offer similar functionality and features, but with different reset threshold voltage options to suit specific application requirements.

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