TPS3103H20DBVR

Overview

Product Category

The TPS3103H20DBVR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This IC is primarily used for power supply monitoring and voltage supervision in various electronic devices and systems.

Characteristics

• Low-power consumption: The TPS3103H20DBVR is designed to operate with minimal power consumption, making it suitable for battery-powered applications.
• Wide input voltage range: It can handle a wide range of input voltages, typically from 0.9V to 6V.
• Adjustable threshold voltage: The IC allows users to set the desired threshold voltage for accurate voltage monitoring.
• Built-in hysteresis: The TPS3103H20DBVR incorporates hysteresis to prevent false triggering due to voltage fluctuations or noise.
• Small package size: It comes in a small SOT-23 package, which makes it suitable for space-constrained applications.

Package and Quantity

The TPS3103H20DBVR is available in a SOT-23 package. It is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 0.9V to 6V
• Threshold Voltage Range: 0.5V to 5.5V (adjustable)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.8µA (typical)
• Output Type: Active-Low Open-Drain
• Power-On Reset Delay: 100ms (typical)

Pin Configuration

The TPS3103H20DBVR has three pins:

1. VDD: This pin is connected to the positive supply voltage.
2. GND: This pin is connected to the ground or negative supply voltage.
3. RESET: This pin is the output pin that provides a reset signal when the monitored voltage falls below the threshold.

Functional Features

• Power Supply Monitoring: The TPS3103H20DBVR continuously monitors the input voltage and generates a reset signal when it falls below the set threshold.
• Adjustable Threshold: Users can adjust the threshold voltage using external resistors to suit their specific application requirements.
• Power-On Reset Delay: The IC incorporates a power-on reset delay to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages

• Low-power consumption makes it suitable for battery-powered devices.
• Wide input voltage range allows for versatile applications.
• Adjustable threshold voltage provides flexibility.
• Built-in hysteresis prevents false triggering.
• Small package size enables use in space-constrained designs.

Disadvantages

• Limited number of pins may restrict functionality in complex systems.
• Lack of built-in protection features against overvoltage or reverse polarity.

Working Principles

The TPS3103H20DBVR operates based on a voltage comparator principle. It compares the input voltage with the threshold voltage set by the user. When the input voltage drops below the threshold, the reset pin is activated, generating a reset signal. This signal can be used to initiate system shutdown or perform other necessary actions.

Application Field Plans

The TPS3103H20DBVR finds applications in various fields, including:

1. Battery-Powered Devices: It can be used in portable electronics, such as smartphones, tablets, and wearable devices, to monitor battery voltage and trigger low-power modes or shutdown when the battery level is critically low.
2. Industrial Control Systems: The IC can be employed in industrial control systems to monitor power supply voltages and ensure stable operation of critical equipment.
3. Automotive Electronics: It can be utilized in automotive applications to monitor battery voltage and trigger actions, such as turning off non-essential systems during low battery conditions.

Alternative Models

1. TPS3103H30DBVR: Similar to TPS3103H20DBVR but with a higher threshold voltage range.
2. TPS3103K33DBVR: A variant with fixed threshold voltage set at 3.3V.
3. TPS3103E18DBVR: Another alternative with a lower threshold voltage range.

These alternative models provide options for different voltage monitoring requirements in various applications.

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