TPS3838K33DBVTG4

Product Overview

Category

The TPS3838K33DBVTG4 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 threshold: 3.3V
• Low quiescent current: 1.5µA (typical)
• Wide operating temperature range: -40°C to +125°C
• Adjustable delay time
• Power-on reset generator
• Open-drain output
• Small package size: SOT-23-5

Package

The TPS3838K33DBVTG4 is packaged in a small SOT-23-5 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS3838K33DBVTG4 lies in its ability to provide accurate voltage monitoring and reset generation in electronic systems.

Packaging/Quantity

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

Specifications

• Supply voltage range: 1.6V to 10V
• Threshold accuracy: ±1.5%
• Reset threshold options: 2.93V, 3.08V, 3.3V, 3.63V, 4.38V, 4.63V, 4.75V
• Delay time options: 20ms, 50ms, 100ms, 200ms, 400ms, 800ms, 1600ms
• Quiescent current: 1.5µA (typical)
• Output type: Open-drain

Detailed Pin Configuration

The TPS3838K33DBVTG4 has the following pin configuration:

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

Functional Features

• Power-on reset generation: The TPS3838K33DBVTG4 generates a reset signal upon power-up to ensure proper initialization of the system.
• Voltage monitoring: It continuously monitors the supply voltage and asserts the reset signal if it falls below the programmed threshold.
• Adjustable delay time: The delay time before asserting the reset signal can be adjusted to suit specific system requirements.
• Open-drain output: The reset output is an open-drain configuration, allowing for flexibility in interfacing with other components.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring
• Wide operating temperature range
• Low quiescent current consumption
• Adjustable delay time for customization
• Small package size for space-constrained applications

Disadvantages

• Limited threshold options compared to some alternative models
• Open-drain output may require additional circuitry for certain applications

Working Principles

The TPS3838K33DBVTG4 operates by comparing the supply voltage against the programmed threshold. If the voltage drops below the threshold, the reset output is asserted. The delay time determines how long the reset signal remains active after the voltage returns to normal.

Detailed Application Field Plans

The TPS3838K33DBVTG4 finds applications in various electronic systems where accurate voltage monitoring and reset generation are critical. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Industrial control systems
3. Automotive electronics
4. Battery-powered devices
5. Communication equipment

Detailed and Complete Alternative Models

1. TPS3839K33DBVTG4: Similar to TPS3838K33DBVTG4 but with additional threshold and delay time options.
2. MAX823L: Voltage supervisor with adjustable threshold and fixed delay time.
3. LTC2914: Precision voltage monitor with programmable threshold and delay time.

These alternative models offer similar functionality to the TPS3838K33DBVTG4 and can be considered based on specific application requirements.

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