TPS3838E18DBVTG4

Product Overview

Category

The TPS3838E18DBVTG4 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage Range: 1.8V
• Low Quiescent Current: 1.5µA (typical)
• Precision Voltage Threshold: ±0.5%
• Power-On Reset Delay Time: 200ms (typical)
• Open Drain Output
• Small Package Size: SOT-23-5

Package

The TPS3838E18DBVTG4 is packaged in a small SOT-23-5 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS3838E18DBVTG4 lies in its ability to accurately monitor and control voltage levels, ensuring proper functioning of electronic systems.

Packaging/Quantity

This product is typically available in reels containing a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Operating Temperature Range: -40°C to +125°C
• Accuracy: ±0.5%
• Quiescent Current: 1.5µA (typical)
• Power-On Reset Delay Time: 200ms (typical)
• Output Type: Open Drain

Detailed Pin Configuration

The TPS3838E18DBVTG4 has the following pin configuration:

1. GND (Ground)
2. VDD (Supply Voltage)
3. MR (Manual Reset)
4. RESET (Reset Output)
5. NC (No Connection)

Functional Features

• Accurate Voltage Monitoring: The TPS3838E18DBVTG4 provides precise voltage threshold monitoring, ensuring reliable system operation.
• Power-On Reset: The device includes a power-on reset circuit that holds the RESET output low during power-up until the supply voltage reaches the specified threshold.
• Manual Reset Input: The MR pin allows for manual resetting of the device, overriding the power-on reset function.

Advantages and Disadvantages

Advantages

• Low quiescent current consumption ensures minimal power usage.
• Accurate voltage threshold monitoring enhances system reliability.
• Small package size enables use in space-constrained applications.
• Power-on reset feature ensures proper initialization of electronic systems.

Disadvantages

• Limited voltage range (1.6V to 6.5V) may not be suitable for all applications requiring voltage supervision.
• Open drain output requires an external pull-up resistor for proper signal interpretation.

Working Principles

The TPS3838E18DBVTG4 operates by continuously monitoring the supply voltage. When the voltage falls below the specified threshold, the RESET output is pulled low, indicating a voltage fault condition. The power-on reset delay ensures that the RESET output remains low during power-up until the supply voltage stabilizes.

Detailed Application Field Plans

The TPS3838E18DBVTG4 finds application in various fields, including:

1. Battery-Powered Devices: Ensures proper voltage monitoring in portable electronic devices, preventing damage due to undervoltage conditions.
2. Industrial Control Systems: Provides reliable voltage supervision in industrial control systems, enhancing overall system stability.
3. Automotive Electronics: Monitors voltage levels in automotive electronics, safeguarding against voltage fluctuations and ensuring proper functioning of critical components.

Detailed and Complete Alternative Models

1. TPS3839E18DBVTG4: Similar to the TPS3838E18DBVTG4, but with a different voltage threshold.
2. TPS3838K33DBVTG4: Offers the same features as the TPS3838E18DBVTG4 but with a higher voltage threshold.
3. TPS3838L30DBVTG4: Similar to the TPS3838E18DBVTG4, but with a lower voltage threshold.

(Note: This is not an exhaustive list of alternative models; please refer to the manufacturer's documentation for a complete list.)

In conclusion, the TPS3838E18DBVTG4 is a voltage supervisor that provides accurate voltage monitoring and power-on reset functionality. Its small package size and low quiescent current make it suitable for various applications in different fields. However, its limited voltage range and open drain output should be considered when selecting this device for specific applications.