TPS3838K33DRVT

Product Overview

Category

The TPS3838K33DRVT belongs to the category of voltage supervisors.

Use

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

Characteristics

• Low-power consumption
• Wide operating voltage range
• High accuracy
• Adjustable threshold voltage
• Reset timeout delay
• Power-on reset delay

Package

The TPS3838K33DRVT comes in a small surface-mount package, which makes it suitable for compact electronic devices.

Essence

The essence of the TPS3838K33DRVT is its ability to provide reliable voltage monitoring and reset functions in various applications.

Packaging/Quantity

The product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Accuracy: ±1.5%
• Reset Timeout Delay: 200ms (typical)
• Power-On Reset Delay: 20ms (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TPS3838K33DRVT has the following pin configuration:

1. GND (Ground)
2. VDD (Supply Voltage)
3. MR (Manual Reset)
4. RESET (Reset Output)

Functional Features

• Voltage Monitoring: The TPS3838K33DRVT continuously monitors the supply voltage and provides a reset signal when it falls below a certain threshold.
• Manual Reset: The MR pin allows for manual resetting of the device, overriding the automatic reset function.
• Adjustable Threshold Voltage: The threshold voltage can be adjusted using external resistors, allowing flexibility in different applications.
• Reset Timeout Delay: The reset output remains active for a specific duration after the supply voltage rises above the threshold, preventing premature system operation.
• Power-On Reset Delay: The device ensures a stable reset output during power-up by delaying the reset signal for a specific duration.

Advantages and Disadvantages

Advantages

• Low-power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range allows compatibility with various systems.
• High accuracy ensures reliable voltage monitoring.
• Adjustable threshold voltage provides flexibility in different applications.
• Reset timeout delay prevents erratic system behavior during power fluctuations.

Disadvantages

• Limited to voltage monitoring and reset functions only.
• Requires external resistors for threshold voltage adjustment.

Working Principles

The TPS3838K33DRVT operates based on a voltage comparator circuit. It compares the supply voltage with a reference voltage (threshold) set by external resistors. When the supply voltage falls below the threshold, the reset output is activated. The reset output remains active for a specific duration (reset timeout delay) after the supply voltage rises above the threshold. This prevents premature system operation during power fluctuations.

Detailed Application Field Plans

The TPS3838K33DRVT finds applications in various fields, including:

1. Automotive Electronics: Used for voltage monitoring in automotive control units, ensuring proper system operation.
2. Industrial Automation: Monitors voltage levels in industrial control systems, providing reliable reset functions.
3. Consumer Electronics: Ensures stable operation of electronic devices by monitoring and controlling voltage levels.
4. Medical Devices: Used for voltage supervision in medical equipment, ensuring patient safety and system reliability.
5. Telecommunications: Monitors voltage in communication systems, preventing damage due to voltage fluctuations.

Detailed and Complete Alternative Models

1. TPS3839K33DRVT: Similar to TPS3838K33DRVT but with additional features such as adjustable reset timeout delay.
2. TPS3840K33DRVT: Offers higher accuracy and a wider operating temperature range compared to TPS3838K33DRVT.
3. TPS3841K33DRVT: Provides adjustable threshold voltage and power-on reset delay, suitable for specific applications requiring precise voltage monitoring.

(Note: The above alternative models are suggestions and may not be an exhaustive list of alternatives available in the market.)

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