TLV809K33DBVR

Product Overview

• Category: Voltage Supervisor
• Use: Monitoring and controlling the voltage levels in electronic systems
• Characteristics: Low-power, precision voltage monitoring, adjustable threshold voltage, small package size
• Package: SOT-23-5
• Essence: TLV809K33DBVR is a voltage supervisor IC that ensures proper functioning of electronic systems by monitoring the supply voltage and generating a reset signal when it falls below a certain threshold.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.2V to 10V
• Threshold Voltage Options: Adjustable from 1.2V to 6V in 100mV increments
• Reset Timeout Period: Fixed or adjustable options available
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 1.5µA (typical)

Pin Configuration

The TLV809K33DBVR has a standard SOT-23-5 package with the following pin configuration:

```

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| | --| RST|-- --| GND|-- --| VDD|-- --| N/C|-- |____| ```

• RST: Reset output pin
• GND: Ground reference
• VDD: Supply voltage input
• N/C: No connection (unused pin)

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the set threshold.
• Adjustable threshold voltage allows flexibility in system design.
• Reset timeout period can be fixed or adjusted according to application requirements.
• Low quiescent current ensures minimal power consumption.
• Built-in hysteresis prevents false triggering due to voltage fluctuations.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable system operation. - Adjustable threshold voltage allows customization for different applications. - Small package size enables space-saving designs. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited number of threshold voltage options. - No built-in overvoltage protection feature.

Working Principles

The TLV809K33DBVR operates by comparing the supply voltage with the set threshold voltage. When the supply voltage drops below the threshold, the reset output pin is asserted, indicating a low-voltage condition. The reset signal remains active until the supply voltage rises above the threshold or the reset timeout period elapses.

Detailed Application Field Plans

The TLV809K33DBVR finds applications in various electronic systems where voltage monitoring and reset generation are critical. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Power management circuits
4. Battery-powered devices
5. Industrial control systems
6. Automotive electronics
7. Home automation systems

Detailed and Complete Alternative Models

1. TLV803M33DBVR: Similar voltage supervisor IC with fixed 3.3V threshold voltage.
2. MAX809: Voltage supervisor IC with adjustable threshold voltage and additional features like manual reset input.
3. ADM6315: Precision voltage monitor with adjustable threshold voltage and watchdog timer functionality.

These alternative models offer similar functionality and can be considered as substitutes for the TLV809K33DBVR based on specific application requirements.

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