ADM1818-20AKSZ-RL7

Product Overview

Category

ADM1818-20AKSZ-RL7 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage Range: 2.0V
• Package Type: SOT-23
• Output Type: Active Low
• Reset Threshold Accuracy: ±1.5%
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Range: 1.0V to 5.5V
• Quiescent Current: 10µA (typical)

Package and Quantity

ADM1818-20AKSZ-RL7 is available in a SOT-23 package. It is typically sold in reels containing a quantity of 3000 units.

Specifications

• Reset Threshold: 2.0V
• Reset Timeout Period: Adjustable
• Power-On Reset Delay: 100ms (typical)
• Watchdog Timer: No
• Manual Reset Input: No
• Power Supply Rejection Ratio: 60dB (typical)
• Low Power Consumption: Yes
• RoHS Compliance: Yes

Pin Configuration

ADM1818-20AKSZ-RL7 has the following pin configuration:

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Pin 1: GND (Ground) Pin 2: RESET (Reset Output) Pin 3: VCC (Supply Voltage)

Functional Features

• Monitors supply voltage and generates a reset signal when it falls below the specified threshold.
• Provides a stable reset output during power-up, power-down, and brownout conditions.
• Offers an adjustable reset timeout period to suit different system requirements.
• Low quiescent current consumption ensures minimal power consumption in standby mode.
• RoHS compliance ensures environmental friendliness.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various electronic circuits.
• Adjustable reset timeout period provides flexibility for different applications.
• Low power consumption helps conserve energy.
• RoHS compliance ensures adherence to environmental regulations.

Disadvantages

• Lack of additional features like a watchdog timer or manual reset input limits its functionality in certain applications.
• Limited reset threshold accuracy may not be suitable for highly precise voltage monitoring requirements.

Working Principles

ADM1818-20AKSZ-RL7 operates by continuously monitoring the supply voltage. When the voltage falls below the specified threshold (2.0V), it generates a reset signal. This signal remains active until the voltage rises above the threshold again. The reset timeout period can be adjusted to control the duration of the reset signal.

Application Field Plans

ADM1818-20AKSZ-RL7 finds application in various electronic systems where voltage monitoring and control are critical. Some potential fields of application include:

1. Battery-powered devices: Ensures proper functioning and prevents damage due to low battery voltage.
2. Microcontrollers and microprocessors: Protects against voltage fluctuations that could lead to data corruption or system instability.
3. Industrial automation: Monitors power supply integrity to prevent equipment malfunction or downtime.
4. Automotive electronics: Safeguards sensitive components from voltage variations, ensuring reliable operation.

Alternative Models

There are several alternative models available in the market that offer similar functionality to ADM1818-20AKSZ-RL7. Some notable alternatives include:

1. MAX809: Offers adjustable reset timeout period and low power consumption.
2. MCP130: Provides precise voltage monitoring and multiple reset threshold options.
3. TPS383: Features a wide operating voltage range and additional watchdog timer functionality.

These alternative models can be considered based on specific application requirements and desired features.

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