MAX16118KA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX16118KA+ is a voltage supervisor IC that provides power supply monitoring and reset generation functions for microcontrollers, DSPs, and other digital systems. It ensures reliable system operation by monitoring the voltage levels and generating a reset signal when necessary.

Characteristics: - Voltage supervisor with reset output - Wide operating voltage range - Low quiescent current consumption - Adjustable reset threshold voltage - Power-on reset delay time programmable via external capacitor - Small package size for space-constrained applications

Package: The MAX16118KA+ is available in a small SOT23-5 package, which is suitable for compact designs and space-limited applications.

Essence: The essence of the MAX16118KA+ is to provide voltage supervision and reset generation capabilities to ensure proper functioning of digital systems.

Packaging/Quantity: The MAX16118KA+ is typically sold in reels containing 3000 units per reel.

Specifications

• Operating Voltage Range: 1.6V to 5.5V
• Quiescent Current: 2µA (typical)
• Reset Threshold Voltage Range: 1.2V to 4.63V
• Power-On Reset Delay Time: Programmable via external capacitor
• Output Type: Active-Low Push-Pull
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX16118KA+ features a standard SOT23-5 package with the following pin configuration:

```

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| | --|----|-- VCC (Pin 1) --|----|-- GND (Pin 2) --|----|-- RESET (Pin 3) --|----|-- MR (Pin 4) --|____|-- NC (Pin 5) ```

Functional Features

1. Voltage Monitoring: The MAX16118KA+ continuously monitors the input voltage and compares it to the user-programmable threshold voltage.
2. Reset Generation: When the monitored voltage falls below the threshold, the MAX16118KA+ asserts a reset signal to the microcontroller or digital system, ensuring a controlled restart.
3. Adjustable Threshold: The reset threshold voltage can be adjusted within a specified range to accommodate different system requirements.
4. Power-On Reset Delay: The delay time for generating the reset signal after power-on can be programmed using an external capacitor.
5. Low Power Consumption: The IC operates with low quiescent current, minimizing power consumption in battery-powered applications.

Advantages and Disadvantages

Advantages: - Compact package size suitable for space-constrained designs - Wide operating voltage range allows compatibility with various systems - Adjustable reset threshold voltage for flexibility - Low quiescent current consumption for power efficiency

Disadvantages: - Limited pin count may restrict the number of features that can be integrated - Lack of built-in protection features against voltage spikes or transients

Working Principles

The MAX16118KA+ works by continuously monitoring the input voltage and comparing it to the user-programmable threshold voltage. If the voltage falls below the threshold, the IC generates a reset signal, which can be used to initiate a controlled restart of the microcontroller or digital system. The reset threshold voltage and power-on reset delay time can be adjusted to suit specific application requirements.

Detailed Application Field Plans

The MAX16118KA+ finds applications in various fields where voltage supervision and reset generation are critical for reliable system operation. Some potential application areas include:

1. Embedded Systems: Used in microcontroller-based embedded systems to ensure proper functioning and prevent system lock-ups due to voltage fluctuations.
2. Industrial Automation: Employed in industrial automation systems to monitor power supply voltages and initiate resets when necessary, preventing data corruption or equipment malfunction.
3. Consumer Electronics: Integrated into consumer electronic devices such as smart home controllers, IoT devices, and portable gadgets to provide voltage monitoring and reset capabilities for enhanced reliability.
4. Automotive Electronics: Utilized in automotive electronics systems to monitor critical voltages and generate resets, ensuring safe and reliable operation of various subsystems.

Detailed and Complete Alternative Models

1. MAX16117KA+: Similar to the MAX16118KA+, but with a different pin configuration and additional features such as adjustable watchdog timer and manual reset input.
2. MAX16119KA+: A higher voltage version of the MAX16118KA+ with an extended operating voltage range and increased reset threshold voltage options.
3. MAX16120KA+: Offers similar voltage supervision and reset generation functions, but with a different package type (SOT23-6) and additional features like adjustable power-on reset delay time.

These alternative models provide similar functionality to