TPS3823-50DBVRG4

Product Overview

Category

The TPS3823-50DBVRG4 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: 0.5V to 5.5V
• Low quiescent current: 10µA (typical)
• Precision voltage threshold: ±2%
• Power-on reset delay time: 200ms (typical)
• Open-drain output
• Small package size: SOT-23-5

Package and Quantity

The TPS3823-50DBVRG4 is available in a small SOT-23-5 package. It is typically sold in reels of 3000 units.

Specifications

• Supply voltage range: 0.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Quiescent current: 10µA (typical)
• Reset threshold accuracy: ±2%
• Power-on reset delay time: 200ms (typical)
• Output type: Open-drain
• Package type: SOT-23-5

Pin Configuration

The TPS3823-50DBVRG4 has the following pin configuration:

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1. VDD: Supply voltage input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Reset output
5. NC: No connection

Functional Features

• Voltage monitoring: The TPS3823-50DBVRG4 continuously monitors the supply voltage and provides a reset signal when it falls below a predefined threshold.
• Power-on reset: It ensures that the reset output remains active for a specific delay time after power is applied to the system.
• Manual reset: The MR pin allows for an external manual reset input, which can be used to force a reset signal.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited number of pins may restrict additional functionality.
• Open-drain output may require additional circuitry for certain applications.

Working Principles

The TPS3823-50DBVRG4 operates by comparing the supply voltage with a predefined threshold. When the voltage falls below this threshold, the reset output is activated. The power-on reset delay ensures that the reset signal remains active for a specific period after power is applied. The open-drain output allows for flexibility in connecting to other devices.

Application Field Plans

The TPS3823-50DBVRG4 finds application in various electronic systems where voltage monitoring and supervision are critical. Some potential fields of application include:

1. Microcontrollers: Ensuring reliable operation by monitoring the supply voltage and initiating a reset if necessary.
2. Industrial control systems: Providing voltage supervision to prevent malfunctions or damage to sensitive components.
3. Automotive electronics: Monitoring the battery voltage to protect against undervoltage conditions.
4. Power management systems: Enabling efficient power management by monitoring voltage levels.

Alternative Models

For those seeking alternative options, the following models offer similar functionality:

1. TPS3839-33DBVRG4: Offers a higher precision voltage threshold and a wider operating temperature range.
2. TPS3808G01DBVR: Provides adjustable voltage thresholds and additional features like watchdog timer functionality.
3. TPS3840PWR: Offers a higher supply voltage range and adjustable reset delay time.

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

In conclusion, the TPS3823-50DBVRG4 is a voltage supervisor with a wide range of applications. Its precise monitoring capabilities, low power consumption, and compact package make it an ideal choice for various electronic systems.