ADM1815-20AKS-RL7

Product Overview

Category

ADM1815-20AKS-RL7 belongs to the category of voltage supervisors or reset ICs.

Use

This product is primarily used in electronic systems to monitor the power supply voltage and ensure proper system operation.

Characteristics

• Voltage monitoring: ADM1815-20AKS-RL7 monitors the power supply voltage and generates a reset signal when the voltage falls below a certain threshold.
• Low power consumption: The device operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide voltage range, typically from 1.6V to 5.5V.
• Adjustable reset threshold: The reset threshold voltage can be adjusted using external resistors.
• Small package size: ADM1815-20AKS-RL7 is available in a small SOT-23 package, which makes it suitable for space-constrained applications.

Package and Quantity

ADM1815-20AKS-RL7 is packaged in a SOT-23 package. It is typically sold in reels containing a specified quantity of units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: Adjustable (typically 2.0V)
• Reset Timeout Period: Fixed (typically 140ms)
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOT-23

Pin Configuration

ADM1815-20AKS-RL7 has the following pin configuration:

```

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| | --| RESET |-- --| GND |-- --| VCC |-- |_______| ```

• RESET: Output pin for the reset signal.
• GND: Ground connection.
• VCC: Power supply input.

Functional Features

• Voltage Monitoring: ADM1815-20AKS-RL7 continuously monitors the power supply voltage.
• Reset Generation: When the voltage falls below the reset threshold, the device generates a reset signal on the RESET pin.
• Reset Timeout: The reset signal remains active for a fixed timeout period after the voltage rises above the threshold.

Advantages and Disadvantages

Advantages

• Reliable Power Supply Monitoring: Ensures proper system operation by monitoring the power supply voltage.
• Adjustable Threshold: The reset threshold can be adjusted to suit specific application requirements.
• Low Power Consumption: Operates with low power consumption, making it suitable for battery-powered devices.
• Small Package Size: Comes in a compact SOT-23 package, ideal for space-constrained applications.

Disadvantages

• Fixed Reset Timeout: The reset signal remains active for a fixed timeout period, which may not be adjustable for all applications.

Working Principles

ADM1815-20AKS-RL7 works by comparing the power supply voltage with a preset threshold. When the voltage falls below the threshold, the device generates a reset signal. This signal remains active for a fixed timeout period after the voltage rises above the threshold. The reset signal can be used to initiate system initialization or recovery processes.

Application Field Plans

ADM1815-20AKS-RL7 finds applications in various electronic systems where reliable power supply monitoring is crucial. Some potential application fields include: - Microcontrollers and microprocessors - Embedded systems - Industrial control systems - Communication equipment - Automotive electronics - Portable devices

Alternative Models

Here are some alternative models that offer similar functionality to ADM1815-20AKS-RL7: - MAX811: Voltage supervisor with adjustable reset threshold and timeout period. - TPS3808: Precision voltage supervisor with adjustable threshold and manual reset input. - LTC2910: Dual-supply voltage supervisor with adjustable threshold and watchdog timer.

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

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