TPS3808G01DRVRG4

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Low Power Consumption - Wide Supply Voltage Range - Adjustable Threshold Voltage - Manual Reset Input - Open Drain Output - Small Package Size

Package: SOT-23-6

Essence: The TPS3808G01DRVRG4 is a voltage supervisor IC that monitors the power supply voltage of a system and provides a reset signal to the microcontroller or other devices when the voltage falls below a certain threshold.

Packaging/Quantity: The TPS3808G01DRVRG4 is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.32V, 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, 4.88V, 5.50V
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Open Drain
• Manual Reset Input: Active-Low
• Power-On Reset Delay Time: 200ms (typical)

Pin Configuration

The TPS3808G01DRVRG4 has a total of 6 pins arranged as follows:

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| | --| VDD | --| GND | --| MR | --| RESET | --| GND | |___________| ```

Pin Description: - VDD: Positive supply voltage input - GND: Ground reference - MR: Manual reset input (active-low) - RESET: Open drain reset output

Functional Features

1. Voltage Monitoring: The TPS3808G01DRVRG4 continuously monitors the supply voltage and asserts the reset signal when it falls below the programmed threshold voltage.
2. Adjustable Threshold Voltage: The IC offers multiple threshold voltage options, allowing flexibility in setting the desired voltage level for triggering the reset signal.
3. Manual Reset Input: The manual reset input pin allows an external signal to force a system reset, overriding the voltage monitoring function.
4. Open Drain Output: The open drain reset output can be connected to other devices or microcontrollers for system-level reset coordination.

Advantages and Disadvantages

Advantages: - Low power consumption - Wide supply voltage range - Adjustable threshold voltage - Small package size

Disadvantages: - Limited number of threshold voltage options

Working Principles

The TPS3808G01DRVRG4 operates by comparing the supply voltage with the programmed threshold voltage. When the supply voltage drops below the threshold, the internal circuitry triggers the reset signal, which can be used to initiate a system reset or perform other necessary actions. The manual reset input provides an additional means to force a reset, regardless of the monitored voltage level.

Detailed Application Field Plans

The TPS3808G01DRVRG4 is commonly used in various applications where reliable voltage monitoring and system reset functionality are required. Some typical application fields include:

1. Microcontroller Systems: The IC ensures proper operation of microcontroller-based systems by monitoring the supply voltage and initiating a reset if necessary.
2. Embedded Systems: Embedded systems often rely on the TPS3808G01DRVRG4 to provide voltage supervision and reset capabilities for stable and reliable operation.
3. Battery-Powered Devices: Portable devices powered by batteries benefit from the low power consumption and wide supply voltage range of the TPS3808G01DRVRG4.
4. Industrial Control Systems: The IC finds application in industrial control systems, where voltage monitoring and system reset functionality are critical for maintaining operational integrity.

Detailed and Complete Alternative Models

1. TPS3809I50DCKR: Similar to TPS3808G01DRVRG4, but with a different package (SC-70-5) and fixed threshold voltage of 2.5V.
2. MAX809TTRG: Voltage supervisor IC with adjustable threshold voltage and push-pull output, available in SOT-23-3 package.
3. ADM6316CY29ARJZ-R7: Microprocessor supervisory circuit with adjustable threshold voltage and active-low reset output, offered in SOT-23-5 package.

These alternative models provide similar voltage monitoring and reset functionalities, catering to different package preferences and specific requirements.

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