TPS3809J25DBVTG4

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Programmable Delay Time
• Package: SOT-23 (DBV)
• Essence: Monitors the voltage level of a system and provides a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.5V
• Reset Timeout Period: Programmable from 1ms to 10s
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TPS3809J25DBVTG4 has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | GND | Ground | | 2 | RESET | Reset Output| | 3 | VDD | Supply Voltage |

Functional Features

• Precision Monitoring: The TPS3809J25DBVTG4 accurately monitors the supply voltage and provides a reliable reset signal.
• Programmable Delay Time: The reset timeout period can be easily programmed according to the application requirements.
• Low Power Consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.

Advantages

• Small Package Size: The SOT-23 package allows for space-efficient designs.
• Wide Supply Voltage Range: The IC can operate within a wide range of supply voltages, providing flexibility in various applications.
• Programmable Reset Timeout: The ability to program the reset timeout period enables customization for different system requirements.

Disadvantages

• Limited Threshold Voltage Options: The TPS3809J25DBVTG4 is available with a fixed threshold voltage of 2.5V, which may not be suitable for all applications.
• Single Reset Output: The IC provides a single reset output, limiting its use in systems requiring multiple reset signals.

Working Principles

The TPS3809J25DBVTG4 monitors the supply voltage by comparing it to a fixed threshold voltage. When the supply voltage falls below the threshold, the reset output is activated, indicating a power failure or an abnormal condition. The reset signal remains active until the supply voltage rises above the threshold and the programmed timeout period elapses.

Detailed Application Field Plans

The TPS3809J25DBVTG4 is commonly used in various applications, including: 1. Microcontrollers and Processors: Ensures reliable system startup and prevents erratic behavior during power fluctuations. 2. Industrial Control Systems: Provides voltage monitoring and reset functionality for critical control circuits. 3. Automotive Electronics: Monitors the battery voltage and initiates a reset when necessary to prevent system malfunctions. 4. Power Management Systems: Safeguards against undervoltage conditions and protects sensitive components.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TPS3809J25DBVTG4 include: - TPS3808G01DBVR - MAX809R - ADM708

Note: These alternative models may have different specifications and pin configurations. It is important to refer to their respective datasheets for detailed information.

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