DS1231-35+ English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics:
  • Monitors the power supply voltage of a system
  • Provides reset output during power-up, power-down, and brownout conditions
  • Ensures reliable system operation by preventing code execution errors
• Package: TO-92-3
• Essence: Voltage supervisor with adjustable threshold
• Packaging/Quantity: Tape & Reel (1000 pieces per reel)

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Threshold Voltage Range: 2.55V to 4.63V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The DS1231-35+ has three pins in the TO-92-3 package: 1. GND: Ground connection 2. VCC: Power supply input 3. RESET: Reset output

Functional Features

• Monitors the power supply voltage and asserts the reset output when the voltage falls below the adjustable threshold.
• The reset output remains active until the power supply voltage rises above the threshold and the reset timeout period elapses.
• Adjustable threshold allows customization for different system requirements.
• Low quiescent current consumption ensures minimal power usage.

Advantages

• Prevents code execution errors caused by unstable power supply voltages.
• Adjustable threshold provides flexibility for various applications.
• Small form factor and low power consumption make it suitable for portable devices.
• Wide operating temperature range enables usage in harsh environments.

Disadvantages

• Limited number of pins restricts additional functionality without external circuitry.
• Not suitable for applications requiring precise voltage monitoring due to limited threshold resolution.

Working Principles

The DS1231-35+ monitors the power supply voltage using an internal voltage reference and comparator. When the voltage falls below the adjustable threshold, the reset output is asserted. The reset output remains active until the voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The DS1231-35+ is commonly used in various electronic systems where reliable operation is crucial. Some application fields include: - Microcontroller-based systems - Industrial control systems - Automotive electronics - Medical devices - Home automation systems

Detailed and Complete Alternative Models

• DS1231-50+: Voltage supervisor with a higher threshold range (2.93V to 5.38V)
• DS1231-25+: Voltage supervisor with a lower threshold range (2.18V to 3.98V)
• DS1231-10+: Voltage supervisor with an even lower threshold range (1.65V to 3.03V)

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