STM809TWX6F

Product Overview

• Category: Integrated Circuit
• Use: Voltage Supervisor
• Characteristics: Low Power, Reset Output, Precision Monitoring
• Package: SOT-23-3
• Essence: Monolithic Microprocessor Reset Circuit
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 4.38V, 4.63V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The STM809TWX6F is a three-pin device with the following pin configuration:

1. RESET - Active-low reset output
2. GND - Ground reference
3. VCC - Supply voltage input

Functional Features

• Monitors the supply voltage and asserts the reset output when it falls below the specified threshold.
• Provides a precision monitoring solution for microprocessors and other digital systems.
• Offers a wide range of reset threshold voltage and timeout period options for flexibility in different applications.
• Low power consumption makes it suitable for battery-powered devices.

Advantages

• Small form factor package allows for space-efficient designs.
• Wide operating voltage range enables compatibility with various systems.
• Precision monitoring ensures reliable system operation.
• Flexible configuration options cater to different application requirements.
• Low power consumption prolongs battery life.

Disadvantages

• Limited number of reset threshold voltage and timeout period options compared to some alternative models.
• Lack of additional features such as watchdog timer or manual reset input.

Working Principles

The STM809TWX6F operates by continuously monitoring the supply voltage. When the voltage drops below the programmed threshold, the reset output is asserted, indicating a power failure or unstable condition. The reset output remains active until the supply voltage rises above the threshold and the timeout period elapses.

Detailed Application Field Plans

The STM809TWX6F is commonly used in various applications where reliable voltage supervision is critical. Some of the typical application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial automation
4. Power management circuits
5. Portable electronic devices

Detailed and Complete Alternative Models

• MAX809: Similar voltage supervisor IC with additional features like manual reset input.
• ADM809: Voltage monitor with adjustable reset threshold and timeout options.
• TPS3808: Ultra-low-power voltage supervisor with programmable delay time.

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