TPS3838K33DRVTG4

Product Overview

Category

The TPS3838K33DRVTG4 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: 3.08V to 3.42V
• Accuracy: ±1%
• Quiescent Current: 2.5µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Output Type: Active Low, Open Drain
• Package Type: SOT-23 (5-pin)

Packaging/Quantity

The TPS3838K33DRVTG4 is typically packaged in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 10V
• Threshold Voltage: 3.3V
• Reset Time Delay: 200ms (typical)
• Power-On Reset Delay: 20ms (typical)
• Watchdog Timer: No
• Manual Reset Input: No
• Power Good Output: No

Detailed Pin Configuration

The TPS3838K33DRVTG4 has a 5-pin SOT-23 package with 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

• Under-Voltage Detection: Monitors the supply voltage and asserts the reset output when it falls below the threshold voltage.
• Precision Monitoring: Provides accurate voltage monitoring with a low quiescent current, ensuring reliable system operation.
• Active Low Reset Output: The reset output is active low, indicating a reset condition when asserted.
• Open Drain Output: The reset output is an open drain, allowing for flexibility in connecting to other devices.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for compatibility with various systems.
• Accurate voltage monitoring ensures system reliability.
• Low quiescent current minimizes power consumption.
• Small package size (SOT-23) enables space-saving designs.

Disadvantages

• Lack of additional features such as a watchdog timer or manual reset input.
• Limited threshold voltage options may not suit all applications.

Working Principles

The TPS3838K33DRVTG4 operates by continuously monitoring the supply voltage. When the voltage falls below the threshold voltage of 3.3V, the reset output is asserted, indicating a reset condition. The open-drain output allows for easy integration with other devices in the system. The low quiescent current ensures minimal power consumption during normal operation.

Detailed Application Field Plans

The TPS3838K33DRVTG4 finds application in various electronic systems that require reliable voltage monitoring and supervision. Some potential application fields include:

1. Battery-Powered Devices: Ensuring proper operation and preventing damage due to undervoltage conditions in portable electronics.
2. Industrial Control Systems: Monitoring power supply voltages to prevent malfunctions and ensure safe operation of machinery.
3. Automotive Electronics: Supervising critical voltage levels to protect sensitive components and ensure vehicle safety.
4. IoT Devices: Providing voltage monitoring capabilities in smart home devices, wearables, and other connected devices.

Detailed and Complete Alternative Models

1. TPS3839K33DRVTG4: Similar to TPS3838K33DRVTG4 but with a different threshold voltage of 3.9V.
2. TPS3840K33DRVTG4: Voltage supervisor with a higher threshold voltage of 4.0V.
3. TPS3825K33DRVTG4: Voltage supervisor with a lower threshold voltage of 2.5V.

These alternative models offer different threshold voltage options to cater to specific application requirements.

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