MAX6719UTZGD3+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX6719UTZGD3+ is a voltage detector and sequencer IC used in various electronic devices to monitor and control power supply voltages. It ensures proper power sequencing and provides reliable protection against voltage fluctuations.

Characteristics: - Voltage detection range: 0.5V to 5.5V - Low quiescent current: 7µA (typical) - Adjustable reset threshold voltage - Power-on reset delay time: 100ms (typical) - Small package size: SOT23-6 - RoHS compliant

Package: The MAX6719UTZGD3+ is available in a small SOT23-6 package, which offers space-saving advantages and ease of integration into compact electronic designs.

Essence: This IC plays a crucial role in ensuring stable and controlled power supply voltages, preventing damage to sensitive components and enhancing the overall reliability of electronic systems.

Packaging/Quantity: The MAX6719UTZGD3+ is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Open-Drain
• Reset Threshold Voltage Options: Adjustable from 0.5V to 4.63V in 100mV steps
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 7µA (typical)
• Power-On Reset Delay Time: 100ms (typical)

Detailed Pin Configuration

The MAX6719UTZGD3+ features a six-pin SOT23 package with the following pin configuration:

1. GND: Ground connection
2. OUT: Active-low open-drain reset output
3. MR: Manual reset input (active-low)
4. TH: Threshold voltage adjustment pin
5. VCC: Positive power supply input
6. NC: No connection

Functional Features

• Voltage Monitoring: The MAX6719UTZGD3+ continuously monitors the input voltage and generates a reset signal when it falls below the programmed threshold voltage.
• Power Sequencing: It ensures proper power sequencing by delaying the reset output until all required voltages are stable, preventing potential damage to sensitive components during power-up or power-down events.
• Adjustable Threshold Voltage: The IC allows users to set the desired reset threshold voltage using an external resistor divider network connected to the TH pin.
• Manual Reset Input: The MR pin provides an option for manual reset, allowing users to override the automatic reset function.

Advantages and Disadvantages

Advantages: - Wide operating voltage range enables compatibility with various electronic systems. - Low quiescent current minimizes power consumption. - Adjustable reset threshold voltage offers flexibility in different applications. - Small package size facilitates space-constrained designs. - RoHS compliance ensures environmental friendliness.

Disadvantages: - Lack of built-in hysteresis may result in oscillations near the threshold voltage. - Limited number of pins restricts the availability of additional features.

Working Principles

The MAX6719UTZGD3+ operates based on a voltage comparator circuit. It compares the input voltage with the internally set threshold voltage. When the input voltage drops below the threshold, the reset output is activated, indicating a power failure or voltage drop event. The reset output remains active until the input voltage rises above the threshold voltage and the reset timeout period elapses.

Detailed Application Field Plans

The MAX6719UTZGD3+ finds applications in a wide range of electronic devices and systems, including but not limited to: - Power supply units - Battery-powered devices - Microcontrollers and microprocessors - Industrial control systems - Automotive electronics - Communication equipment

Detailed and Complete Alternative Models

1. MAX6718UTZGD3+: Similar to MAX6719UTZGD3+, but with fixed threshold voltage options.
2. MAX6717AUTZGD3+: Voltage detector and sequencer IC with active-high reset output.
3. MAX6716AUTZGD3+: Voltage detector IC with adjustable threshold voltage and active-high reset output.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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