DS1231S-20+ Encyclopedia Entry

Product Overview

Category

The DS1231S-20+ belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for voltage monitoring and power supply supervision in electronic systems.

Characteristics

• Voltage monitoring: The DS1231S-20+ is designed to monitor the voltage level of a power supply.
• Power supply supervision: It provides various functions to ensure proper power supply operation.
• Package: The DS1231S-20+ comes in a small outline package (SOP) form factor.
• Essence: This IC ensures reliable power supply management and protection.
• Packaging/Quantity: The DS1231S-20+ is typically packaged in reels, with a quantity of 2500 units per reel.

Specifications

The specifications of the DS1231S-20+ include:

• Supply voltage range: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Reset threshold voltage: 2.93V
• Reset timeout period: 20ms
• Quiescent current: 10µA (typical)

Pin Configuration

The DS1231S-20+ has the following pin configuration:

1. GND: Ground connection
2. RESET: Active-low reset output
3. VCC: Power supply input

Functional Features

The DS1231S-20+ offers the following functional features:

• Precision voltage monitoring: It accurately monitors the power supply voltage.
• Reset generation: It generates a reset signal when the voltage falls below the specified threshold.
• Adjustable reset timeout: The reset timeout period can be adjusted according to system requirements.
• Manual reset input: It provides an option to manually trigger a reset.
• Low quiescent current: The IC consumes minimal current during operation, ensuring power efficiency.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable system operation.
• Adjustable reset timeout allows customization for different applications.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Single-channel voltage monitoring may not be suitable for complex systems.

Working Principles

The DS1231S-20+ operates by continuously monitoring the power supply voltage. When the voltage falls below the specified threshold, it generates a reset signal to initiate a system reset. The reset timeout period can be adjusted to accommodate varying system requirements. Additionally, a manual reset input is provided for user-triggered resets.

Application Field Plans

The DS1231S-20+ finds applications in various fields, including:

1. Industrial automation: It ensures stable power supply in control systems.
2. Automotive electronics: It provides voltage monitoring and supervision in automotive applications.
3. Consumer electronics: The IC safeguards sensitive electronic components from voltage fluctuations.
4. Medical devices: It helps maintain reliable power supply in medical equipment.

Alternative Models

Below are some alternative models that offer similar functionality:

1. DS1231S-10+: This variant has a lower reset threshold voltage of 2.63V.
2. DS1231S-30+: This variant has a higher reset threshold voltage of 3.08V.
3. DS1231S-50+: This variant has a higher reset threshold voltage of 3.43V.

These alternative models cater to different voltage monitoring requirements based on specific application needs.

In conclusion, the DS1231S-20+ is an integrated circuit designed for voltage monitoring and power supply supervision. With its precision monitoring, adjustable timeout, and low power consumption, it offers reliable protection for electronic systems in various industries.