TPS3307-25DG4

Product Overview

Category

The TPS3307-25DG4 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage supervision range: 2.5V
• Low quiescent current: 10µA
• Wide operating temperature range: -40°C to +125°C
• Adjustable delay time
• Power-on reset generator
• Watchdog timer

Package

The TPS3307-25DG4 comes in a small SOT-23 package, which is suitable for space-constrained applications.

Essence

The essence of the TPS3307-25DG4 lies in its ability to ensure stable voltage levels and provide reliable power-on reset functionality in electronic systems.

Packaging/Quantity

The TPS3307-25DG4 is typically packaged in reels, with 3000 units per reel.

Specifications

• Supply voltage range: 1.8V to 6.5V
• Threshold voltage accuracy: ±1.5%
• Reset timeout period: 200ms (typical)
• Watchdog timeout period: 1.6s (typical)
• Operating current: 10µA (typical)

Detailed Pin Configuration

The TPS3307-25DG4 has the following pin configuration:

1. GND: Ground connection
2. VDD: Positive supply voltage input
3. MR: Manual reset input
4. RESET: Reset output
5. WDI: Watchdog input

Functional Features

1. Voltage Supervision: The TPS3307-25DG4 monitors the supply voltage and generates a reset signal when it falls below the specified threshold.
2. Power-On Reset: It ensures that the system remains in a known state during power-up by generating a reset signal.
3. Watchdog Timer: The TPS3307-25DG4 includes a watchdog timer that resets the system if it fails to receive a periodic input within the specified timeout period.

Advantages and Disadvantages

Advantages

• Low quiescent current consumption
• Wide operating temperature range
• Adjustable delay time for power-on reset
• Small package size suitable for space-constrained applications

Disadvantages

• Limited voltage supervision range (2.5V)

Working Principles

The TPS3307-25DG4 operates by continuously monitoring the supply voltage. If the voltage falls below the threshold, it triggers a reset signal to ensure proper system operation. Additionally, the device incorporates a watchdog timer that requires a periodic input to prevent system lock-up.

Detailed Application Field Plans

The TPS3307-25DG4 finds applications in various electronic systems where reliable voltage monitoring and power-on reset functionality are crucial. Some potential application fields include:

1. Microcontrollers: Ensuring stable power supply and preventing data corruption during power fluctuations.
2. Industrial Control Systems: Providing reliable reset functionality to maintain system integrity.
3. Automotive Electronics: Monitoring critical voltage levels to prevent system failures.
4. Battery-Powered Devices: Protecting against undervoltage conditions and extending battery life.

Detailed and Complete Alternative Models

1. TPS3307-33DG4: Similar to TPS3307-25DG4 but with a higher voltage supervision range of 3.3V.
2. TPS3307-50DG4: Offers a voltage supervision range of 5.0V, suitable for applications requiring higher voltage thresholds.
3. TPS3310-25DGK: Provides additional features such as adjustable reset timeout and watchdog timeout periods.

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