SP706REU-L/TR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics:
  • Monitors the power supply voltage to ensure it remains within specified limits
  • Provides a reset signal when the voltage falls below a predetermined threshold
  • Helps prevent system malfunction or data corruption during power fluctuations
• Package: SOT-23-5
• Essence: Ensures stable operation of electronic systems by monitoring power supply voltage
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Voltage Options: 2.63V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)

Pin Configuration

The SP706REU-L/TR has a standard SOT-23-5 package with the following pin configuration:

┌───┬───┐ │ 1 │ 2 │ ├───┼───┤ │ 3 │ 4 │ ├───┼───┤ │ 5 │ └───┘

1. GND: Ground connection
2. RESET: Output reset signal
3. VCC: Positive power supply input
4. MR: Manual reset input (optional)
5. N/C: No connection

Functional Features

• Monitors power supply voltage continuously
• Generates a reset signal when voltage drops below the set threshold
• Adjustable reset timeout period allows customization for specific applications
• Provides a manual reset option (MR pin) for additional control
• Low quiescent current ensures minimal power consumption

Advantages and Disadvantages

Advantages: - Compact SOT-23-5 package for space-constrained designs - Wide supply voltage range enables compatibility with various systems - Adjustable reset timeout period offers flexibility in different scenarios - Manual reset input provides additional control options - Low quiescent current minimizes power consumption

Disadvantages: - Limited threshold voltage options may not suit all applications - Lack of built-in hysteresis may lead to potential oscillations near the threshold voltage

Working Principles

The SP706REU-L/TR operates by continuously monitoring the power supply voltage. When the voltage falls below the preset threshold, it triggers the RESET pin, generating a reset signal. This signal can be used to initiate system resets or perform other necessary actions to ensure stable operation during power fluctuations.

The reset timeout period can be adjusted according to the application requirements, allowing designers to fine-tune the response time. The optional MR pin provides a manual reset input, enabling users to manually trigger a reset when needed.

Detailed Application Field Plans

The SP706REU-L/TR is widely used in various electronic systems where stable operation is critical. Some common application fields include:

1. Microcontrollers and Microprocessors: Ensures reliable operation by monitoring power supply voltage and initiating resets if necessary.
2. Communication Systems: Protects data integrity during power fluctuations, preventing system malfunctions.
3. Industrial Control Systems: Monitors power supply voltage to prevent damage to sensitive components and ensure uninterrupted operation.
4. Automotive Electronics: Safeguards against voltage drops, ensuring proper functioning of critical automotive systems.
5. Medical Devices: Provides voltage supervision to maintain the stability and safety of medical equipment.

Detailed and Complete Alternative Models

1. SP708REU-L/TR: Similar voltage supervisor IC with additional features like adjustable threshold voltage and watchdog timer.
2. MAX809REUR+: Voltage supervisor IC with a push-pull output and adjustable reset timeout period.
3. ADM6315-26D2ARTZ-R7: Microprocessor supervisory circuit with adjustable reset timeout and manual reset input.

These alternative models offer similar functionality to the SP706REU-L/TR and can be considered based on specific application requirements.

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