TPS3805H33MDCKREP

Overview

Product Category

The TPS3805H33MDCKREP 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 supervision range: 3.3V
• Low quiescent current: 2.5µA (typical)
• Precision voltage threshold: ±1.5%
• Power-on reset delay time: 200ms (typical)
• Open-drain output
• Small package size: SC-70-5

Package and Quantity

The TPS3805H33MDCKREP is available in a SC-70-5 package. It is typically sold in reels containing 3000 units.

Specifications

• Supply voltage range: 1.6V to 6.5V
• Operating temperature range: -40°C to +85°C
• Output type: Open-drain
• Threshold voltage: 3.3V ±1.5%
• Reset timeout period: 200ms (typical)
• Quiescent current: 2.5µA (typical)

Pin Configuration

The TPS3805H33MDCKREP has the following pin configuration:

```

---

| | --| VDD | --| GND | --| MR | --| RESET | --| N.C. | |___________| ```

Functional Features

• Voltage monitoring: The TPS3805H33MDCKREP continuously monitors the input voltage and provides a reset signal when it falls below the specified threshold.
• Power-on reset: It ensures that the system remains in a known state during power-up by delaying the reset signal for a specific period.
• Open-drain output: The open-drain output allows for flexibility in connecting to other devices.

Advantages and Disadvantages

Advantages

• Low quiescent current consumption, making it suitable for battery-powered applications.
• Precision voltage threshold ensures accurate monitoring of the input voltage.
• Small package size enables space-saving designs.

Disadvantages

• Limited voltage supervision range (3.3V).
• Open-drain output requires additional components for level shifting in certain applications.

Working Principles

The TPS3805H33MDCKREP operates by comparing the input voltage with a precision voltage threshold. When the input voltage falls below this threshold, the reset signal is activated. The power-on reset delay ensures that the reset signal is not triggered immediately during power-up, allowing the system to stabilize.

Application Field Plans

The TPS3805H33MDCKREP finds applications in various electronic systems where voltage monitoring and power-on reset functionality are crucial. Some potential application fields include:

1. Microcontrollers: Ensuring proper operation and preventing data corruption during power fluctuations.
2. Industrial control systems: Maintaining system integrity and preventing damage due to voltage drops or spikes.
3. Automotive electronics: Protecting sensitive components from voltage variations and ensuring reliable operation.
4. Battery-powered devices: Monitoring battery voltage levels and initiating appropriate actions when they reach critical levels.

Alternative Models

Here are some alternative models that offer similar functionality:

1. TPS3808G01DBVR
2. MAX809TTRG
3. ADM6315-26D2ARTZ-RL7
4. MCP100T-315I/TT

These alternatives can be considered based on specific requirements and availability.

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