TLV809K33DBZR

Product Overview

• Category: Voltage Supervisor
• Use: Monitoring and resetting microcontrollers and other digital systems
• Characteristics: Low-power, low-voltage, reset timeout delay, manual reset input
• Package: SOT-23-3
• Essence: Ensures reliable system operation by monitoring the power supply voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage: 3.3V
• Reset Timeout Delay: 200ms (typical)
• Manual Reset Input: Active-low, push-pull output
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TLV809K33DBZR has three pins:

1. GND: Ground reference for the device.
2. MR: Manual Reset Input pin. When pulled low, it forces a reset.
3. RESET: Output pin that goes low when the monitored voltage drops below the threshold.

Functional Features

• Monitors the power supply voltage and generates a reset signal when it falls below the threshold.
• Provides a manual reset input for immediate system reset.
• Low quiescent current consumption, suitable for battery-powered applications.
• Built-in hysteresis prevents false triggering due to voltage fluctuations.
• Small package size allows for space-constrained designs.

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring ensures system stability. - Low-power operation extends battery life. - Manual reset input provides flexibility in system control. - Small package size saves board space.

Disadvantages: - Limited to monitoring a single voltage threshold. - Not suitable for high-voltage applications.

Working Principles

The TLV809K33DBZR operates by comparing the supply voltage with a fixed threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout delay elapses. The manual reset input allows for an immediate system reset, overriding the voltage monitoring function.

Detailed Application Field Plans

The TLV809K33DBZR is commonly used in various applications, including:

1. Microcontroller-based systems
2. Embedded systems
3. Industrial control systems
4. Battery-powered devices
5. IoT devices
6. Consumer electronics

Detailed and Complete Alternative Models

• TLV809K33DCYR
• TLV809K33DCYRG4
• TLV809K33DCYTG4
• TLV809K33PDBZT
• TLV809K33PDBZR

These alternative models offer similar functionality and characteristics to the TLV809K33DBZR, providing options for different package types or quantities.

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