MAX823REUK

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MAX823REUK

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IC SUPERVISOR MPU

  • Nhà sản xuấtAnalog Devices Inc./Maxim tích hợp

  • Ông. Phần #MAX823REUK

  • Có sẵn5022

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Thông số kỹ thuật

thuộc tính Giá trị
Part Status Active
Digi Key Programmable Not Verified
Type Simple Reset/Power-On Reset
Number of Voltages Monitored 1
Voltage - Threshold 2.63V
Output Push-Pull, Totem Pole
Reset Active Low
Reset Timeout 140ms Minimum
Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount
Package / Case SC-74A, SOT-753
Supplier Device Package SOT-23-5
Base Product Number MAX823

Tổng quan

Description

The MAX823REUK is a voltage supervisor and reset IC designed to ensure reliable operation of microcontrollers and other digital systems. It monitors the supply voltage and generates a reset signal when the voltage falls below a critical threshold, preventing erratic behavior during power-up or brownout conditions. The device features an active-low reset output, which is asserted when the power supply voltage drops below a preset level, typically around 4.65V.
Key features include a fast reset response time, low supply current, and the ability to operate over a wide voltage range (from 2.5V to 5.5V). The MAX823REUK is suitable for various applications, including automotive, telecommunications, and consumer electronics, and comes in a compact 8-pin SOIC package. Its reliability and simplicity make it a popular choice for engineers looking to enhance system stability and prevent potential data corruption or system failure.

Equivalent

The MAX823REUK is a voltage supervisor with a reset output. Equivalent products include the MAX810, MAX811, MAX812, MAX813, and MAX823 series, as well as components from other manufacturers like the LM809 (Texas Instruments), TPS3820 (Texas Instruments), and S-8254 (Seiko Instruments). When considering equivalents, ensure compatibility in voltage thresholds and reset timing specifications.

Features

The MAX823REUK is a precision voltage supervisor designed for various applications including microcontrollers and DSPs. Key features include:
1. Voltage Monitoring: It provides reset signals for supply voltages as low as 0.9V.
2. Adjustable Reset Thresholds: Offers user-selectable reset thresholds to accommodate different systems.
3. Fast Reset Response: Typically responds within 5 to 10 µs, ensuring quick reset during voltage drops.
4. Low Supply Current: Operates with low power consumption, typically around 3 µA, extending battery life in portable devices.
5. Temperature Range: Functional over a wide temperature range from -40°C to +125°C.
6. Active-Low Output: The reset output is active low, simplifying integration with digital circuits.
7. Debounce Feature: Includes internal delay to prevent false triggering from transient voltage fluctuations.
8. Compact Package: Available in a space-saving SOT23 package, ideal for space-constrained applications.
These features make the MAX823REUK suitable for ensuring reliable operation in critical electronic systems.

Pinout

The MAX823REUK is a voltage supervisor/monitor with a pin count of 8. It provides overvoltage and undervoltage detection for various applications, ensuring system stability and reliability.
Here are the pin functions:
1. GND (Pin 1): Ground reference.
2. VDD (Pin 2): Supply voltage (typically +5V).
3. RESET (Pin 3): Active-high reset output; goes low during fault conditions.
4. SENSE (Pin 4): Voltage sensing input for monitoring the supply voltage.
5. VOUT (Pin 5): Output for the reset signal.
6. NC (Pin 6): No connection (can be left unconnected).
7. GND (Pin 7): Ground reference (another GND pin).
8. VDD (Pin 8): Supply voltage (an additional VDD pin).
The MAX823REUK is typically used in microcontroller applications to ensure proper reset behavior during power fluctuations.

Manufacturer

The MAX823REUK is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Established in 1983, Maxim Integrated is a semiconductor company specializing in designing and manufacturing analog and mixed-signal integrated circuits. Their products are widely used in various applications, including automotive, industrial, communications, and consumer electronics.
The MAX823REUK is a voltage supervisor and reset circuit designed for microprocessor and microcontroller applications. It provides precision voltage monitoring and ensures reliable system operation by generating a reset signal when supply voltages fall below a specified threshold.
Maxim Integrated is recognized for its innovative solutions and has a strong focus on high-performance analog technology, catering to a diverse range of industries and applications. The acquisition by Analog Devices in 2021 has further enhanced its capabilities in advanced analog and mixed-signal solutions.

Application

The MAX823REUK is a voltage supervisor specifically designed for monitoring power supply levels in microprocessors and digital circuits. Its primary application areas include:
1. Power Supply Monitoring: Ensuring stable voltage levels in systems, preventing brown-out conditions.
2. Microprocessor Reset: Providing reset signals during power-up or voltage fluctuations to ensure proper system initialization.
3. Battery-Operated Devices: Protecting against under-voltage conditions to extend battery life.
4. Consumer Electronics: Used in devices like smartphones, laptops, and home appliances for reliable operation.
5. Industrial Equipment: Enhancing safety and reliability in automation and control systems.
Overall, it enhances system reliability by monitoring voltage levels and managing resets.

Package

The MAX823REUK is packaged in an 8-pin µMAX® (microMAX) package, which is a compact, surface-mount format designed for space-constrained applications.

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