ADM1232ARNZ-REEL

Product Overview

Category

ADM1232ARNZ-REEL belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring: ADM1232ARNZ-REEL is designed to monitor the supply voltage of a system and provide a reset signal when the voltage falls below a certain threshold.
• Reset function: It ensures that the system is properly initialized after power-up or voltage fluctuations.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered devices.
• Wide operating voltage range: It can operate within a wide range of supply voltages, typically from 1.8V to 5.5V.
• Small package size: ADM1232ARNZ-REEL is available in a compact package, allowing for space-efficient designs.

Package and Quantity

ADM1232ARNZ-REEL is packaged in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a specific quantity of units, such as 2500 pieces per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Voltage: Adjustable, typically 2.93V
• Reset Timeout Period: Adjustable, typically 140ms
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-8

Pin Configuration

ADM1232ARNZ-REEL has eight pins arranged in a dual in-line package (DIP) configuration:

┌───┬───┐ │1 8│ VCC │2 7│ RESET │3 6│ GND │4 5│ MR └───┴───┘

1. VCC: Power supply input pin.
2. RESET: Output pin for the reset signal.
3. GND: Ground reference pin.
4. MR: Manual reset input pin.

Functional Features

Voltage Monitoring

ADM1232ARNZ-REEL continuously monitors the supply voltage and compares it to a preset threshold. When the voltage drops below this threshold, the reset output is activated.

Reset Signal Generation

The IC generates a reset signal that remains active for a programmable timeout period after the supply voltage rises above the threshold. This ensures that the system is properly reset and initialized.

Manual Reset Input

The manual reset (MR) pin allows for an external reset signal to override the internal monitoring circuitry. When MR is pulled low, the reset output is activated regardless of the supply voltage level.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality.
• Low power consumption.
• Wide operating voltage range.
• Compact package size.

Disadvantages

• Limited number of pins for additional functionalities.
• Not suitable for applications requiring complex reset timing sequences.

Working Principles

ADM1232ARNZ-REEL utilizes a voltage comparator to monitor the supply voltage. The comparator compares the voltage at the VCC pin with a reference voltage derived from an internal bandgap reference. When the voltage falls below the preset threshold, the reset output is activated.

The timeout period is controlled by an internal timer circuit. After the supply voltage rises above the threshold, the timer starts counting. If the voltage remains above the threshold for the duration of the timeout period, the reset signal is deactivated.

Application Field Plans

ADM1232ARNZ-REEL finds applications in various electronic devices where reliable voltage monitoring and reset functions are required. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Power management circuits
4. Industrial control systems
5. Automotive electronics

Alternative Models

There are several alternative models available in the market that offer similar voltage monitoring and reset functionalities. Some popular alternatives to ADM1232ARNZ-REEL include:

1. MAX1232
2. LTC2950
3. TPS3808
4. MCP101

These alternative models may have different specifications, pin configurations, or package options, providing flexibility for different design requirements.

In conclusion, ADM1232ARNZ-REEL is an integrated circuit used for voltage monitoring and reset functions. It offers reliable performance, low power consumption, and a wide operating voltage range. Its compact package makes it suitable for space-constrained designs. However, it has limitations in terms of pin count and complex reset timing sequences. It finds applications in various electronic devices and has alternative models available in the market.