TPS3808G18QDBVRQ1

Basic Information Overview

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

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 1.8V, 2.5V, 3.3V, 5V
• Reset Timeout Period: Programmable from 1ms to 10s
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TPS3808G18QDBVRQ1 has the following pin configuration:

| Pin Name | Description | |----------|-------------| | GND | Ground | | VDD | Supply Voltage | | MR | Manual Reset Input | | RESET | Reset Output |

Functional Features

• Precision Monitoring: The TPS3808G18QDBVRQ1 accurately monitors the supply voltage and provides a reset signal when it falls below a certain threshold.
• Programmable Delay: The reset timeout period can be programmed to suit specific system requirements.
• Low Power Consumption: With a quiescent current of only 1.5µA, the TPS3808G18QDBVRQ1 minimizes power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for flexibility in various applications. - Programmable delay feature enables customization for different system needs. - Low power consumption prolongs battery life in portable devices.

Disadvantages: - Limited threshold voltage options may not cover all voltage requirements. - SOT-23 package may limit heat dissipation in high-power applications.

Working Principles

The TPS3808G18QDBVRQ1 operates by continuously monitoring the supply voltage. When the voltage falls below the programmed threshold, the reset output is asserted, 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 TPS3808G18QDBVRQ1 finds applications in various fields, including: 1. Automotive: Used in electronic control units (ECUs) to ensure reliable operation and system integrity. 2. Industrial: Provides voltage supervision in industrial automation systems, preventing data corruption or loss during power fluctuations. 3. Consumer Electronics: Ensures proper startup and operation of microcontrollers in devices such as smartphones, tablets, and gaming consoles. 4. Medical Devices: Monitors power supply voltages in medical equipment, guaranteeing safe and accurate operation.

Detailed and Complete Alternative Models

1. TPS3808G01: Similar voltage supervisor IC with fixed 2.93V threshold voltage.
2. TPS3808G33: Voltage supervisor IC with fixed 3.3V threshold voltage and adjustable reset timeout period.
3. TPS3808G50: Voltage supervisor IC with fixed 5V threshold voltage and adjustable reset timeout period.

These alternative models offer similar functionality but with different threshold voltage options and additional features for customization.

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