TPS3707-33DGNR

Product Overview

Category

The TPS3707-33DGNR belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and supervising voltage levels in electronic systems.

Characteristics

• Voltage threshold: 3.3V
• Low quiescent current: 2µA (typical)
• Wide supply voltage range: 1.8V to 18V
• Adjustable hysteresis
• Open-drain output
• Small package size: 8-pin MSOP

Package and Quantity

The TPS3707-33DGNR is available in an 8-pin MSOP package. It is typically sold in reels containing 2500 units.

Specifications

• Supply voltage range: 1.8V to 18V
• Threshold voltage accuracy: ±1.5%
• Operating temperature range: -40°C to +125°C
• Quiescent current: 2µA (typical)
• Output type: Open-drain
• Power-on reset delay time: 20ms (typical)

Pin Configuration

The TPS3707-33DGNR has the following pin configuration:

```

---

| | --| VDD GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output (Open-drain) --| THRESHOLD |-- Pin 3: Threshold Voltage Input --| HYST |-- Pin 4: Hysteresis Adjustment --| NC |-- Pin 5: No Connection --| NC |-- Pin 6: No Connection --| NC |-- Pin 7: No Connection --| VDD |-- Pin 8: Supply Voltage (VDD) |___________| ```

Functional Features

• Voltage monitoring: The TPS3707-33DGNR continuously monitors the input voltage and provides a reset signal when it falls below the threshold voltage.
• Adjustable hysteresis: The hysteresis can be adjusted to prevent false triggering due to voltage fluctuations or noise.
• Open-drain output: The reset output is an open-drain configuration, allowing for flexibility in connecting external components.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows for versatile applications.
• Low quiescent current minimizes power consumption.
• Adjustable hysteresis enhances stability in voltage monitoring.

Disadvantages

• Limited to monitoring voltage levels up to 18V.
• No built-in overvoltage protection feature.

Working Principles

The TPS3707-33DGNR operates by comparing the input voltage with the threshold voltage set by the user. When the input voltage drops below the threshold, the reset output is activated, indicating a power failure or low voltage condition. The hysteresis feature prevents false triggering by introducing a voltage difference between the threshold voltage for activation and deactivation.

Application Field Plans

The TPS3707-33DGNR finds applications in various electronic systems where reliable voltage monitoring is crucial. Some potential application fields include: 1. Power supply units 2. Battery-powered devices 3. Industrial control systems 4. Automotive electronics 5. Home automation systems

Alternative Models

Here are some alternative models that offer similar functionality to the TPS3707-33DGNR: - TPS3707-25DGNR: Threshold voltage of 2.5V - TPS3707-50DGNR: Threshold voltage of 5.0V - TPS3707-12DGNR: Threshold voltage of 1.2V

These alternative models can be considered based on specific voltage requirements and application scenarios.

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