TPS3839G18DBZT

Product Overview

Category

The TPS3839G18DBZT belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic systems.

Characteristics

• The TPS3839G18DBZT is a low-power, precision voltage supervisor.
• It operates with an input voltage range of 1.8V to 10V.
• The device has a fixed threshold voltage of 1.8V.
• It offers a wide supply voltage range, making it suitable for various applications.
• The TPS3839G18DBZT provides accurate voltage monitoring and reset generation.
• It has a low quiescent current consumption, ensuring minimal power wastage.
• The device is designed to be highly reliable and robust.

Package

The TPS3839G18DBZT comes in a small SOT-23 package, which is widely used in the electronics industry.

Essence

The essence of the TPS3839G18DBZT lies in its ability to monitor and control voltage levels accurately, ensuring the proper functioning of electronic systems.

Packaging/Quantity

The TPS3839G18DBZT is typically available in reels or tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 1.8V to 10V
• Threshold Voltage: 1.8V
• Quiescent Current: <1µA
• Operating Temperature Range: -40°C to +125°C
• Output Type: Active Low
• Accuracy: ±2%
• Power Supply Rejection Ratio: 60dB
• Reset Time Delay: 200ms (typical)

Detailed Pin Configuration

The TPS3839G18DBZT has three pins:

1. VDD: This pin is connected to the power supply voltage.
2. GND: This pin is connected to the ground reference.
3. RESET: This pin provides the active low reset signal.

Functional Features

• Accurate Voltage Monitoring: The TPS3839G18DBZT ensures precise monitoring of voltage levels, preventing system malfunctions due to voltage fluctuations.
• Low Quiescent Current: With a quiescent current of less than 1µA, the device minimizes power consumption and extends battery life in portable applications.
• Power Supply Rejection Ratio: The TPS3839G18DBZT exhibits excellent power supply rejection, allowing it to operate reliably even in noisy environments.
• Reset Generation: It generates an active low reset signal when the monitored voltage falls below the threshold, enabling proper system initialization.

Advantages and Disadvantages

Advantages

• Wide input voltage range allows for versatile application.
• Accurate voltage monitoring ensures system stability.
• Low quiescent current consumption for power efficiency.
• Small package size enables space-saving designs.
• Reliable operation in harsh environments.

Disadvantages

• Fixed threshold voltage may not be suitable for all applications requiring different voltage levels.
• Limited reset time delay may not be ideal for certain systems with specific timing requirements.

Working Principles

The TPS3839G18DBZT operates by comparing the input voltage with the fixed threshold voltage. When the input voltage drops below the threshold, the device triggers the reset signal, indicating a power failure or abnormal voltage condition. Once the input voltage rises above the threshold again, the reset signal is released, allowing the system to resume normal operation.

Detailed Application Field Plans

The TPS3839G18DBZT finds applications in various fields, including but not limited to: - Battery-powered devices - Industrial control systems - Automotive electronics - Medical equipment - Communication systems

Detailed and Complete Alternative Models

1. TPS3839K33DBZT: Similar to TPS3839G18DBZT, but with a threshold voltage of 3.3V.
2. TPS3839L30DBZT: Similar to TPS3839G18DBZT, but with a threshold voltage of 3.0V.
3. TPS3839H25DBZT: Similar to TPS3839G18DBZT, but with a threshold voltage of 2.5V.

These alternative models provide flexibility in choosing the appropriate threshold voltage for specific application requirements.

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