LTC2909CTS8-5#TRMPBF

Product Overview

Category

LTC2909CTS8-5#TRMPBF belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and power supply sequencing applications.

Characteristics

• Voltage monitoring: The LTC2909CTS8-5#TRMPBF provides accurate voltage monitoring capabilities, ensuring the stability and reliability of the system.
• Power supply sequencing: It enables proper power-up and power-down sequencing, preventing potential damage to sensitive components.
• Low power consumption: The LTC2909CTS8-5#TRMPBF is designed to operate with minimal power consumption, making it suitable for battery-powered devices.
• High accuracy: This IC offers high precision voltage monitoring, ensuring precise control over the power supply.

Package

The LTC2909CTS8-5#TRMPBF comes in a small 8-pin TSOT package, which is compact and space-saving.

Essence

The essence of LTC2909CTS8-5#TRMPBF lies in its ability to monitor voltages and sequence power supplies accurately, contributing to the overall stability and reliability of electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Voltage Monitoring Threshold: 5V ±1.5%
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)
• Output Type: Active-Low Open-Drain
• Response Time: 300µs (typical)

Detailed Pin Configuration

The LTC2909CTS8-5#TRMPBF has the following pin configuration:

1. GND: Ground connection
2. IN: Voltage input for monitoring
3. TH: Threshold voltage input
4. EN: Enable pin for power sequencing
5. FLT: Fault output indicating a monitored voltage below the threshold
6. GATE: Output enable control for external circuitry
7. VCC: Power supply input
8. FLT#: Inverted fault output

Functional Features

• Voltage Monitoring: The LTC2909CTS8-5#TRMPBF continuously monitors the input voltage and compares it to the threshold voltage.
• Power Sequencing: It provides a controlled power-up and power-down sequence, ensuring proper operation of the system.
• Fault Detection: The IC detects when the monitored voltage falls below the threshold and generates a fault signal.
• Output Control: The GATE pin allows enabling or disabling external circuitry based on the monitored voltage status.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures system stability.
• Power sequencing prevents potential damage to sensitive components.
• Low power consumption extends battery life in portable devices.
• Compact package saves space in electronic designs.

Disadvantages

• Limited voltage range (2.7V to 5.5V).
• Requires additional external components for complete functionality.

Working Principles

The LTC2909CTS8-5#TRMPBF operates by comparing the input voltage with the threshold voltage set by the TH pin. If the input voltage falls below the threshold, a fault signal is generated. The EN pin controls the power sequencing, allowing for a controlled power-up and power-down sequence. The GATE pin enables or disables external circuitry based on the monitored voltage status.

Detailed Application Field Plans

The LTC2909CTS8-5#TRMPBF finds applications in various fields, including:

1. Power management systems: It ensures proper voltage monitoring and power sequencing in power supply units.
2. Battery-powered devices: The low power consumption makes it suitable for portable electronics, such as smartphones and tablets.
3. Industrial automation: It provides reliable voltage monitoring in control systems, preventing potential failures.
4. Automotive electronics: The LTC2909CTS8-5#TRMPBF contributes to stable power supply and protection in automotive applications.

Detailed and Complete Alternative Models

1. LTC2909ITS8-5#TRMPBF: Similar to LTC2909CTS8-5#TRMPBF but comes in an 8-pin SOIC package.
2. LTC2909HMS8-5#TRMPBF: Higher temperature range (-40°C to +125°C) version of LTC2909CTS8-5#TRMPBF.
3. LTC2909CTS8-3.3#TRMPBF: Variant with a different threshold voltage (3.3V ±1.5%).

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

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