TPS3824-30DBVRG4

Product Overview

Category

The TPS3824-30DBVRG4 belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and supervising the voltage levels in electronic systems.

Characteristics

• Voltage supervision range: 2.93V to 3.07V
• Low quiescent current: 10µA (typical)
• Precision voltage monitor with adjustable threshold
• Manual reset input
• Power-on reset delay time: 200ms (typical)
• Watchdog timer function
• Small package size: SOT-23-5

Package and Quantity

The TPS3824-30DBVRG4 is available in a small SOT-23-5 package. It is typically sold in reels, with a quantity of 3000 units per reel.

Specifications

• Supply voltage range: 1.6V to 6.5V
• Operating temperature range: -40°C to +85°C
• Reset threshold accuracy: ±1.5%
• Watchdog timeout period: 1.6s (typical)
• Manual reset input voltage: 0.7V (minimum), VDD (maximum)

Pin Configuration

The TPS3824-30DBVRG4 has the following pin configuration:

```

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| | --| RESET | --| GND | --| MR | --| VDD | --| VIT | |___________| ```

Functional Features

1. Voltage Monitoring: The TPS3824-30DBVRG4 provides precise voltage monitoring within the specified range.
2. Adjustable Threshold: The threshold voltage can be adjusted to suit specific system requirements.
3. Manual Reset Input: The manual reset input allows for external control of the reset function.
4. Power-On Reset Delay: The device ensures a stable power-on reset delay time, providing sufficient time for the system to stabilize.
5. Watchdog Timer: The integrated watchdog timer helps detect and recover from system malfunctions or lock-ups.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows for compatibility with various systems.
• Low quiescent current minimizes power consumption.
• Adjustable threshold provides flexibility in voltage monitoring.
• Small package size enables space-saving designs.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Manual reset input voltage has specific limitations.

Working Principles

The TPS3824-30DBVRG4 operates by continuously monitoring the voltage level at the VIT pin. If the voltage falls below the adjustable threshold, the reset output is asserted, indicating a low-voltage condition. The power-on reset delay ensures that the reset output remains active for a specified period after power is applied or restored.

Application Field Plans

The TPS3824-30DBVRG4 finds applications in various fields, including: 1. Automotive electronics: Ensuring reliable voltage monitoring in automotive systems. 2. Industrial automation: Providing voltage supervision in industrial control systems. 3. Consumer electronics: Enhancing the stability of electronic devices by monitoring voltage levels. 4. Telecommunications: Safeguarding critical components by detecting voltage fluctuations.

Alternative Models

1. TPS3820-33DBVRG4: Similar voltage supervisor with a fixed threshold of 3.3V.
2. TPS3839K33DBVRG4: Voltage supervisor with adjustable threshold and additional power-on reset delay features.
3. TPS3808G01DBVRG4: Ultra-low-power voltage supervisor with a wide supply voltage range.

These alternative models offer similar functionality and can be considered based on specific system requirements.

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