TPS3128E18DBVT

Overview

Product Category

The TPS3128E18DBVT belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and controlling the voltage levels in electronic systems.

Characteristics

• Voltage supervisors ensure stable power supply by monitoring input voltages.
• The TPS3128E18DBVT offers precise voltage monitoring capabilities.
• It provides a reset signal when the monitored voltage falls below a specified threshold.
• This device operates at low power consumption, making it suitable for battery-powered applications.

Package and Quantity

The TPS3128E18DBVT is available in a small SOT-23 package. It is typically sold in reels containing a specific quantity, such as 3000 units per reel.

Specifications

• Input Voltage Range: 1.6V to 6.5V
• Threshold Voltage Accuracy: ±1.8%
• Supply Current: 2µA (typical)
• Reset Timeout Period: 200ms (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS3128E18DBVT features a standard SOT-23 package with three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that provides a reset signal when the monitored voltage falls below the threshold.

Functional Features

• Precise voltage monitoring: The TPS3128E18DBVT accurately monitors the input voltage and triggers a reset signal when it falls below the specified threshold.
• Low power consumption: With a supply current of only 2µA, this device minimizes power consumption, making it ideal for energy-efficient applications.
• Reset timeout period: The TPS3128E18DBVT includes a reset timeout feature that ensures the reset signal remains active for a specific duration (typically 200ms) after the voltage returns to an acceptable level.

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring.
• Low power consumption.
• Compact package size.
• Reset timeout feature ensures reliable system operation.

Disadvantages

• Limited input voltage range (1.6V to 6.5V).
• Not suitable for applications requiring higher voltage monitoring.

Working Principles

The TPS3128E18DBVT operates by comparing the input voltage with a reference threshold. When the input voltage falls below this threshold, the device triggers a reset signal. This signal remains active for a specified timeout period, ensuring that the system is reset until the voltage returns to an acceptable level.

Application Field Plans

The TPS3128E18DBVT finds application in various electronic systems where precise voltage monitoring is crucial. Some potential fields of application include: - Battery-powered devices - Microcontrollers and microprocessors - Industrial automation systems - Automotive electronics - Consumer electronics

Alternative Models

For users seeking alternative options, the following models offer similar functionality to the TPS3128E18DBVT: - TPS3125E18DBVT - TPS3126E18DBVT - TPS3127E18DBVT

These models share comparable specifications and pin configurations, making them suitable alternatives for different design requirements.

In conclusion, the TPS3128E18DBVT is a voltage supervisor that provides accurate voltage monitoring and reset capabilities. With its low power consumption and compact package, it is well-suited for various electronic applications. However, designers should consider the limited input voltage range and explore alternative models based on their specific needs.