TPS3808G125DBVRG4

Basic Information Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Low Power Consumption - Wide Supply Voltage Range - Adjustable Threshold Voltage - Precision Monitoring - Small Package Size

Package: SOT-23-5

Essence: The TPS3808G125DBVRG4 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: Tape & Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.13V, 3.30V, 3.63V, 4.38V, 4.63V, 4.75V
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low, Open Drain

Detailed Pin Configuration

The TPS3808G125DBVRG4 has a SOT-23-5 package with the following pin configuration:

```

---

| | | 1 2| |____| | | 3| 4 |5 ```

Pin 1: GND (Ground)

Pin 2: VDD (Supply Voltage)

Pin 3: MR (Manual Reset Input)

Pin 4: RESET (Reset Output)

Pin 5: NC (No Connection)

Functional Features

• Precision monitoring of supply voltage
• Adjustable threshold voltage for flexibility
• Low power consumption for energy efficiency
• Small package size for space-constrained applications
• Open-drain output for easy interfacing with microcontrollers

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows for versatile use - Adjustable threshold voltage accommodates different system requirements - Low quiescent current minimizes power consumption - Small package size saves board space - Open-drain output simplifies circuit design

Disadvantages: - Limited number of threshold voltage options - No internal hysteresis feature

Working Principles

The TPS3808G125DBVRG4 monitors the supply voltage by comparing it to a fixed threshold voltage. When the supply voltage falls below the threshold, the reset output is activated, signaling a low-voltage condition. The manual reset input can also be used to force a reset signal. The IC operates with low power consumption and provides precise monitoring of the supply voltage.

Detailed Application Field Plans

The TPS3808G125DBVRG4 is commonly used in various electronic systems where reliable voltage monitoring is crucial. Some application fields include:

1. Battery-Powered Devices: Ensures proper shutdown or system reset when battery voltage drops below a safe level.
2. Industrial Control Systems: Monitors power supply integrity to prevent data corruption or equipment damage during voltage fluctuations.
3. Automotive Electronics: Protects sensitive components from voltage dips or spikes, ensuring stable operation of critical systems.
4. Home Automation: Provides voltage supervision for smart home devices, preventing malfunctions due to power supply issues.
5. Medical Equipment: Ensures patient safety by monitoring power supply voltage in medical devices, triggering alarms or shutdowns if necessary.

Detailed and Complete Alternative Models

1. TPS3809I50DBVRG4: Similar voltage supervisor IC with adjustable threshold voltage and active-low, open-drain output. Package: SOT-23-5.
2. TPS3839K33DBVRG4: Voltage supervisor IC with fixed threshold voltage of 3.3V and active-low, open-drain output. Package: SOT-23-5.
3. TPS3890QDRCRQ1: Automotive-grade voltage supervisor IC with adjustable threshold voltage and active-low, push-pull output. Package: VSON-8.

These alternative models offer similar functionality and can be considered as substitutes for the TPS3808G125DBVRG4 in different applications.

Word count: 515 words