TPS3103E15DBVRG4

Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor and Reset Generator

Characteristics: - Monitors the voltage level of a power supply - Generates a reset signal when the voltage falls below a certain threshold - Suitable for use in various electronic devices

Package: SOT-23 (Small Outline Transistor 23)

Essence: The TPS3103E15DBVRG4 is an integrated circuit that provides voltage monitoring and reset generation functionality. It ensures proper operation of electronic devices by monitoring the power supply voltage and generating a reset signal when the voltage drops below a specified threshold.

Packaging/Quantity: The TPS3103E15DBVRG4 is available in a SOT-23 package, which is a small surface-mount package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 1.2V to 6V
• Threshold Voltage Options: 1.5V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.8µA (typical)
• Power-On Reset Delay Time: 200ms (typical)
• Open Drain Output

Pin Configuration

The TPS3103E15DBVRG4 has the following pin configuration:

____ VDD| |GND RST| |N/C GND| |VDD ----

• VDD: Power supply input
• GND: Ground reference
• RST: Reset output
• N/C: No connection (unused pin)

Functional Features

1. Voltage Monitoring: The TPS3103E15DBVRG4 continuously monitors the power supply voltage.
2. Reset Generation: When the voltage falls below the threshold, the IC generates a reset signal.
3. Accurate Threshold: The device has a fixed threshold voltage of 1.5V, ensuring reliable operation.
4. Low Power Consumption: The quiescent current of only 1.8µA minimizes power consumption.
5. Open Drain Output: The reset output is an open drain, allowing flexibility in interfacing with other devices.

Advantages and Disadvantages

Advantages: - Provides reliable voltage monitoring and reset generation functionality - Low power consumption helps conserve energy - Small package size enables space-efficient designs - Accurate threshold voltage ensures proper operation

Disadvantages: - Fixed threshold voltage may not be suitable for all applications requiring different voltage levels - Limited number of pins restricts additional functionalities without external circuitry

Working Principles

The TPS3103E15DBVRG4 operates by comparing the power supply voltage with a fixed threshold voltage. When the voltage drops below the threshold, the IC triggers the reset output, indicating a power failure or unstable voltage condition. This reset signal can be used to initiate system recovery or perform other necessary actions.

Application Field Plans

The TPS3103E15DBVRG4 can be used in various electronic devices where voltage monitoring and reset generation are critical. Some potential application fields include:

1. Microcontrollers: Ensuring proper operation and preventing data corruption during power fluctuations.
2. Embedded Systems: Providing reliable reset signals to restart systems after power failures.
3. Battery-Powered Devices: Monitoring battery voltage to prevent over-discharge and protect sensitive components.
4. Industrial Control Systems: Detecting power supply abnormalities and initiating appropriate actions.
5. Automotive Electronics: Resetting microcontrollers and sensors in case of voltage drops or transients.

Alternative Models

1. TPS3103E18DBVRG4: Similar to TPS3103E15DBVRG4, but with a threshold voltage of 1.8V.
2. TPS3103E25DBVRG4: Similar to TPS3103E15DBVRG4, but with a threshold voltage of 2.5V.
3. TPS3103E33DBVRG4: Similar to TPS3103E15DBVRG4, but with a threshold voltage of 3.3V.

These alternative models offer different threshold voltage options to accommodate various voltage monitoring requirements.

In conclusion, the TPS3103E15DBVRG4 is an integrated circuit that provides voltage monitoring and reset generation functionality. It offers accurate threshold detection, low power consumption, and a compact package size. With its wide range of applications and availability of alternative models, it is a versatile choice for electronic devices requiring reliable voltage supervision and reset capabilities.