ADM825SYRJ-R7

Product Overview

Category

ADM825SYRJ-R7 belongs to the category of voltage supervisors.

Use

It is used to monitor the power supply voltage and reset the system when the voltage falls below a certain threshold.

Characteristics

• Voltage monitoring range: 1.8V to 5.0V
• Adjustable reset timeout period
• Low quiescent current consumption
• Small package size
• RoHS compliant

Package

ADM825SYRJ-R7 is available in a small SOT-23 package.

Essence

The essence of ADM825SYRJ-R7 is to ensure the stability and reliability of electronic systems by monitoring the power supply voltage and providing a reset signal when necessary.

Packaging/Quantity

ADM825SYRJ-R7 is typically packaged in reels, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Accuracy: ±1.5%
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 6µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

ADM825SYRJ-R7 has three pins:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that provides a reset signal to the system.

Functional Features

• Monitors the power supply voltage continuously.
• Generates a reset signal when the voltage falls below the set threshold.
• The reset timeout period can be adjusted according to system requirements.
• Low quiescent current consumption helps in power-sensitive applications.

Advantages

• Wide operating voltage range allows compatibility with various systems.
• Adjustable reset timeout period offers flexibility in system design.
• Small package size enables space-saving on PCBs.
• Low quiescent current consumption helps in extending battery life.

Disadvantages

• Limited reset timeout period range may not be suitable for all applications.
• SOT-23 package may require additional handling precautions during assembly.

Working Principles

ADM825SYRJ-R7 operates by continuously monitoring the power supply voltage. When the voltage falls below the set threshold, it triggers the internal reset circuitry, which generates a reset signal. This signal is then used to reset the system, ensuring proper operation under low voltage conditions.

Detailed Application Field Plans

ADM825SYRJ-R7 finds applications in various electronic systems where voltage monitoring and system reset functionality are crucial. Some of the potential application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial control systems
4. Power management circuits
5. Battery-powered devices

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to ADM825SYRJ-R7 are:

1. MAX823: Voltage supervisor with adjustable reset timeout period.
2. LTC2910: Precision voltage monitor with programmable threshold levels.
3. TPS3808: Ultra-low-power voltage supervisor with fixed reset timeout period.

These alternative models can be considered based on specific application requirements and design constraints.

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