TPS3803-01QDCKREP

Product Overview

Category

The TPS3803-01QDCKREP belongs to the category of integrated circuits (ICs) and specifically falls under the family of voltage supervisors.

Use

This product is primarily used for monitoring and supervising the voltage levels in electronic systems. It ensures that the voltage remains within a specified range, triggering appropriate actions when thresholds are exceeded.

Characteristics

• Voltage supervision: The TPS3803-01QDCKREP provides accurate monitoring of voltage levels.
• Reset functionality: It offers a reset signal to the system when voltage thresholds are violated.
• Low power consumption: This IC operates with low power requirements, making it suitable for battery-powered devices.
• Wide operating temperature range: The TPS3803-01QDCKREP can function reliably across a wide temperature range, enhancing its versatility.
• Small package size: It comes in a compact package, allowing for space-efficient integration into various electronic systems.

Package and Quantity

The TPS3803-01QDCKREP is available in a small SOT-23-5 package. Each package contains one unit of the IC.

Specifications

• Supply voltage range: 1.6V to 6.0V
• Threshold voltage options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, and 4.88V
• Quiescent current: 7µA (typical)
• Power-on reset delay time: 20ms (typical)
• Operating temperature range: -40°C to +85°C

Pin Configuration

The TPS3803-01QDCKREP has five pins arranged as follows:

```

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| | --| VDD | --| GND | --| MR | --| RESET | --| NRESET | |_______| ```

• VDD: Power supply pin
• GND: Ground pin
• MR: Manual reset input pin
• RESET: Reset output pin
• NRESET: Active-low reset output pin

Functional Features

1. Voltage Monitoring: The TPS3803-01QDCKREP continuously monitors the voltage level and compares it to the programmed threshold.
2. Reset Generation: When the voltage falls below the threshold, the IC generates a reset signal to initiate system recovery or shutdown.
3. Manual Reset: The MR pin allows for manual reset control, enabling system restart when required.
4. Hysteresis: The device incorporates hysteresis to prevent false triggering due to voltage fluctuations near the threshold.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures system stability and reliability.
• Low power consumption prolongs battery life in portable devices.
• Wide operating temperature range enables usage in various environments.
• Small package size facilitates integration into space-constrained designs.

Disadvantages

• Limited threshold voltage options may not cater to all voltage monitoring requirements.
• Lack of adjustable delay time for power-on reset may limit flexibility in certain applications.

Working Principles

The TPS3803-01QDCKREP operates by comparing the monitored voltage with the programmed threshold voltage. If the voltage drops below the threshold, the IC triggers a reset signal. This signal can be used to initiate system recovery or perform necessary actions to ensure proper functioning.

The device continuously monitors the voltage using an internal comparator. It incorporates hysteresis to avoid false triggering caused by voltage fluctuations near the threshold. The MR pin allows for manual reset control, providing flexibility in system restarts.

Application Field Plans

The TPS3803-01QDCKREP finds applications in various electronic systems that require voltage monitoring and reset functionality. Some potential application fields include:

1. Microcontrollers: Ensuring stable power supply for microcontroller-based systems.
2. Industrial Control Systems: Monitoring voltage levels in industrial automation equipment.
3. Automotive Electronics: Overvoltage protection and system recovery in automotive electronics.
4. Battery-Powered Devices: Voltage supervision in portable devices to prevent battery drain or damage.

Alternative Models

1. TPS3803G01: Similar voltage supervisor IC with adjustable threshold voltage options.
2. MAX823: Voltage monitor and reset generator with additional features like watchdog timer.
3. ADM6315: Precision voltage monitor with adjustable reset timeout period.

These alternative models offer similar functionality and can be considered based on specific requirements and compatibility with the target system.

In conclusion, the TPS3803-01QDCKREP is an integrated circuit designed for accurate voltage monitoring and reset generation. Its small package size, low power consumption, and wide operating temperature range make it suitable for various electronic systems. While it has limited threshold voltage options, its functional features and advantages outweigh the disadvantages, making it