TLV809L30DBVT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power Consumption, Wide Operating Voltage Range
• Package: SOT-23-5
• Essence: Monitors the voltage level of a system and generates a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 6.5V
• Threshold Voltage: 3.0V
• Reset Timeout Period: 200ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TLV809L30DBVT has a total of 5 pins:

1. GND: Ground connection
2. MR: Manual Reset input pin
3. VDD: Positive supply voltage input
4. RESET: Reset output
5. NC: No Connection

Functional Features

• Monitors the supply voltage and asserts the RESET pin low when the voltage drops below the threshold.
• Provides a manual reset option through the MR pin.
• Has a built-in delay circuit to prevent false resets during power-up or voltage transients.
• Low quiescent current consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various systems. - Low power consumption extends battery life in portable devices. - Small package size enables space-saving designs. - Built-in delay circuit prevents false resets.

Disadvantages: - Fixed threshold voltage may not be suitable for all applications. - Limited number of pins restricts additional functionality.

Working Principles

The TLV809L30DBVT operates by comparing the supply voltage with a fixed threshold voltage. When the supply voltage drops below the threshold, the RESET pin is asserted low, indicating a system reset. The manual reset (MR) pin can also be used to force a reset regardless of the supply voltage level.

The IC includes a delay circuit that ensures the RESET pin remains low for a specified timeout period after the supply voltage rises above the threshold. This prevents false resets caused by power-up transients or temporary voltage fluctuations.

Detailed Application Field Plans

The TLV809L30DBVT is commonly used in various electronic systems where reliable voltage monitoring and reset generation are required. Some typical application fields include:

1. Microcontrollers: Ensures proper system initialization and prevents erratic behavior during power-up.
2. Industrial Control Systems: Monitors critical voltages to prevent damage or data corruption.
3. Automotive Electronics: Provides reset signals for microcontrollers and other components in automotive applications.
4. Battery-Powered Devices: Protects battery life by initiating a reset when the voltage drops below a safe operating level.
5. Home Automation: Ensures stable operation of smart home devices by monitoring power supply integrity.

Detailed and Complete Alternative Models

• TLV809L33DBVT: Same features as TLV809L30DBVT but with a higher threshold voltage of 3.3V.
• TLV809L50DBVT: Similar features as TLV809L30DBVT but with a higher threshold voltage of 5.0V.
• TLV809M30DBVT: Offers adjustable threshold voltage for more flexibility in different applications.

These alternative models provide options for different voltage threshold requirements and offer similar functionality to the TLV809L30DBVT.

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