MAX809JTRG

Product Overview

Category: Integrated Circuits (ICs)
Use: Voltage Supervisors
Characteristics: Low Power, Reset Timer, Active-Low Push-Pull Output
Package: SOT-23-3
Essence: MAX809JTRG is a voltage supervisor IC that monitors the power supply voltage of a system and asserts a reset signal when the voltage falls below a predetermined threshold.
Packaging/Quantity: Tape & Reel (3000 pieces per reel)

Specifications

Supply Voltage Range: 1.0V to 5.5V
Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V
Reset Timeout Period: 140ms (typical)
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

MAX809JTRG has three pins:

GND: Ground pin
RESET: Active-low push-pull output pin that asserts a reset signal when the monitored voltage drops below the threshold.
VCC: Power supply input pin

Functional Features

Monitors the power supply voltage and provides a reset signal when the voltage falls below the threshold.
Active-low push-pull output ensures reliable reset signaling.
Low power consumption makes it suitable for battery-powered applications.
Built-in reset timeout period prevents false resets during power-up.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Multiple threshold voltage options provide flexibility in different applications. - Small package size enables space-saving designs. - Low power consumption extends battery life.

Disadvantages: - Limited reset timeout period may not be suitable for certain applications requiring longer timeouts. - Single-channel design limits its use in systems requiring multiple voltage supervisors.

Working Principles

MAX809JTRG operates by comparing the supply voltage with a preset threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted, indicating a power failure or low voltage condition. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

Battery-powered devices: MAX809JTRG ensures proper system operation by monitoring the battery voltage and initiating a reset when it falls below a safe level.
Microcontroller systems: It provides a reliable reset signal to microcontrollers during power-up or voltage fluctuations, preventing erratic behavior.
Industrial control systems: The voltage supervisor helps maintain stable operation in critical industrial control applications by detecting power supply abnormalities.

Detailed and Complete Alternative Models

MAX809L: Similar functionality but with different threshold voltage options.
MAX811: Voltage supervisors with additional features like manual reset input and watchdog timer.
MAX803: Low-power voltage supervisors with adjustable reset timeout periods.

(Note: This list is not exhaustive and other alternative models may exist.)

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan MAX809JTRG dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of MAX809JTRG in technical solutions:

Q: What is MAX809JTRG? A: MAX809JTRG is a voltage monitor and reset IC that ensures reliable system operation by monitoring the power supply voltage and asserting a reset signal when it falls below a predefined threshold.
Q: What is the operating voltage range of MAX809JTRG? A: The operating voltage range of MAX809JTRG is typically between 1.0V and 5.5V.
Q: How does MAX809JTRG help in preventing brownout conditions? A: MAX809JTRG has an adjustable reset threshold voltage, which can be set to a level slightly above the minimum operating voltage of the system. This helps prevent brownout conditions by asserting a reset signal when the voltage drops below the set threshold.
Q: Can I use MAX809JTRG with both microcontrollers and digital logic circuits? A: Yes, MAX809JTRG can be used with both microcontrollers and digital logic circuits as long as the operating voltage requirements are within its specified range.
Q: Does MAX809JTRG have any delay before asserting the reset signal? A: Yes, MAX809JTRG has a fixed reset timeout delay of typically 140ms to ensure stable power supply before releasing the reset signal.
Q: Can I adjust the reset timeout delay of MAX809JTRG? A: No, the reset timeout delay of MAX809JTRG is fixed and cannot be adjusted.
Q: Is MAX809JTRG available in different package options? A: Yes, MAX809JTRG is available in various package options, such as SOT23-3 and SC70-3, to suit different application requirements.
Q: Can I use MAX809JTRG in battery-powered applications? A: Yes, MAX809JTRG is suitable for battery-powered applications as it has a low quiescent current of typically 1µA, which helps conserve battery life.
Q: Does MAX809JTRG have any built-in hysteresis? A: Yes, MAX809JTRG has a built-in hysteresis of typically 2.5% to prevent oscillation near the threshold voltage.
Q: Can I use MAX809JTRG in automotive applications? A: Yes, MAX809JTRG is qualified for automotive applications and meets the necessary standards, such as AEC-Q100 Grade 1, making it suitable for use in automotive electronics.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements.