TPS3808G30DBVR

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Programmable Delay Time
• Package: SOT-23-5
• Essence: Monitors voltage levels and provides reset signals to microcontrollers and other digital systems.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.3V, 4.38V
• Reset Timeout Period: Programmable from 1ms to 10s
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)

Detailed Pin Configuration

The TPS3808G30DBVR has a total of 5 pins:

1. GND: Ground connection
2. VDD: Positive supply voltage input
3. MR: Manual Reset input pin
4. RESET: Active-low reset output
5. N/C: No Connection

Functional Features

• Precision Monitoring: The TPS3808G30DBVR accurately monitors the supply voltage and provides a reset signal when it falls below the threshold voltage.
• Programmable Delay Time: The reset timeout period can be programmed using an external capacitor, allowing flexibility in system design.
• Manual Reset Input: The MR pin allows for manual reset control, overriding the monitoring function.

Advantages and Disadvantages

Advantages: - Low Power Consumption: The TPS3808G30DBVR operates with a low quiescent current, making it suitable for battery-powered applications. - Small Package Size: The SOT-23-5 package offers a compact form factor, ideal for space-constrained designs. - Precision Monitoring: The IC provides accurate voltage monitoring, ensuring reliable system operation.

Disadvantages: - Limited Threshold Voltage Options: The available threshold voltage options may not cover all voltage requirements in certain applications. - Single Reset Output: The TPS3808G30DBVR only provides a single reset output, which may be a limitation in complex systems requiring multiple reset signals.

Working Principles

The TPS3808G30DBVR operates by comparing the supply voltage with a programmable threshold voltage. When the supply voltage falls below the threshold, the reset output is asserted low, indicating a power-on reset condition. The reset remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The TPS3808G30DBVR finds application in various fields, including:

1. Microcontroller Systems: Provides reliable power-on reset functionality to ensure proper initialization of microcontrollers.
2. Industrial Control Systems: Monitors supply voltage in industrial control systems, triggering a reset when necessary to maintain system integrity.
3. Automotive Electronics: Ensures stable operation of automotive electronic systems by monitoring voltage levels and initiating resets if required.
4. Battery-Powered Devices: Enables efficient power management in battery-powered devices, preventing unexpected shutdowns due to low voltage conditions.

Detailed and Complete Alternative Models

1. TPS3808G01DBVR: Similar to TPS3808G30DBVR but with different threshold voltage options (1.6V, 2.32V, 2.93V).
2. TPS3808G33DBVR: Offers higher threshold voltage options (3.08V, 3.3V, 3.63V) compared to TPS3808G30DBVR.
3. TPS3808G50DBVR: Provides even higher threshold voltage options (4.38V, 4.63V, 5.0V) for specific voltage monitoring requirements.

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