TPS3705-33DGNR

Product Overview

Category

The TPS3705-33DGNR 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: 10µA (typical)
• Wide supply voltage range: 1.8V to 18V
• Adjustable hysteresis
• Open-drain output
• Power-on reset delay time: 200ms (typical)

Package

The TPS3705-33DGNR comes in a small 8-pin MSOP package.

Essence

The essence of the TPS3705-33DGNR is its ability to provide accurate voltage monitoring and supervision, ensuring proper functioning of electronic systems.

Packaging/Quantity

The TPS3705-33DGNR is typically packaged in reels containing 2500 units.

Specifications

• Supply voltage range: 1.8V to 18V
• Operating temperature range: -40°C to +125°C
• Quiescent current: 10µA (typical)
• Threshold accuracy: ±1.5%
• Output type: Open-drain
• Power-on reset delay time: 200ms (typical)
• Hysteresis voltage: Adjustable

Detailed Pin Configuration

The TPS3705-33DGNR has the following pin configuration:

1. GND (Ground)
2. VDD (Supply Voltage)
3. MR (Manual Reset)
4. TH (Threshold)
5. HYST (Hysteresis)
6. NC (No Connection)
7. RESET (Output)
8. NC (No Connection)

Functional Features

• Accurate voltage monitoring: The TPS3705-33DGNR ensures precise monitoring of voltage levels, preventing system malfunctions due to voltage fluctuations.
• Adjustable hysteresis: The hysteresis voltage can be adjusted to provide flexibility in voltage monitoring applications.
• Open-drain output: The open-drain output allows for easy integration with other components in the system.
• Power-on reset delay: The 200ms power-on reset delay ensures stable operation during power-up.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows for versatile use in various electronic systems.
• Low quiescent current minimizes power consumption.
• Accurate voltage threshold and adjustable hysteresis ensure reliable voltage monitoring.

Disadvantages

• Limited pin configuration options may restrict certain system designs.
• Lack of integrated features for additional functionality.

Working Principles

The TPS3705-33DGNR operates by comparing the input voltage (TH) with a fixed internal reference voltage. When the input voltage falls below the threshold voltage, the RESET pin is pulled low, indicating a voltage fault. The hysteresis feature prevents oscillation near the threshold voltage, ensuring stable operation.

Detailed Application Field Plans

The TPS3705-33DGNR finds application in various fields, including: 1. Power supply monitoring in industrial control systems. 2. Battery management systems in automotive electronics. 3. Voltage supervision in consumer electronics. 4. Overvoltage protection in communication equipment. 5. Fault detection in medical devices.

Detailed and Complete Alternative Models

1. TPS3705-30DGNR: Similar to TPS3705-33DGNR but with a 3.0V threshold voltage.
2. TPS3705-25DGNR: Similar to TPS3705-33DGNR but with a 2.5V threshold voltage.
3. TPS3705-18DGNR: Similar to TPS3705-33DGNR but with an 1.8V threshold voltage.
4. TPS3705-15DGNR: Similar to TPS3705-33DGNR but with a 1.5V threshold voltage.

These alternative models provide flexibility in voltage monitoring applications with different threshold voltage options.

In conclusion, the TPS3705-33DGNR is a voltage supervisor that offers accurate monitoring and supervision of voltage levels. Its wide supply voltage range, low quiescent current, and adjustable hysteresis make it suitable for various electronic systems. However, limited pin configuration options and lack of integrated features may be considered as disadvantages. The TPS3705-33DGNR finds application in diverse fields such as industrial control systems, automotive electronics, consumer electronics, communication equipment, and medical devices. Alternative models with different threshold voltages are available to cater to specific voltage monitoring requirements.