LTC2909CTS8-2.5#TRPBF

Product Overview

Category

LTC2909CTS8-2.5#TRPBF belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage monitoring: The LTC2909CTS8-2.5#TRPBF provides accurate voltage monitoring capabilities.
• Power supply sequencing: It ensures proper power-up and power-down sequencing, preventing potential damage to sensitive components.
• Package: The LTC2909CTS8-2.5#TRPBF comes in a small surface-mount package, making it suitable for compact designs.
• Essence: This IC is designed to enhance the reliability and safety of electronic systems by monitoring voltage levels and controlling power sequencing.

Packaging/Quantity

The LTC2909CTS8-2.5#TRPBF is typically packaged in tape and reel format, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Voltage Monitoring Threshold: 2.5V
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

The LTC2909CTS8-2.5#TRPBF has the following pin configuration:

1. GND (Ground)
2. VIN (Supply Voltage Input)
3. VOUT (Voltage Monitoring Output)
4. EN (Enable Input)
5. OV (Overvoltage Threshold Input)
6. UV (Undervoltage Threshold Input)
7. OV/UV (Overvoltage/Undervoltage Indicator Output)
8. GND (Ground)

Functional Features

• Voltage Monitoring: The LTC2909CTS8-2.5#TRPBF continuously monitors the input voltage and compares it to the user-defined overvoltage and undervoltage thresholds.
• Power Sequencing: It ensures proper power-up and power-down sequencing by controlling the enable input based on the monitored voltage levels.
• Overvoltage/Undervoltage Indicator: The IC provides an output signal indicating whether the voltage is within the desired range or has exceeded the specified thresholds.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring for enhanced system reliability.
• Prevents potential damage to sensitive components during power-up and power-down sequences.
• Small package size allows for space-efficient designs.

Disadvantages

• Limited voltage range (2.7V to 5.5V).
• Requires external components for threshold setting and power sequencing.

Working Principles

The LTC2909CTS8-2.5#TRPBF operates by continuously monitoring the input voltage using the OV and UV inputs. It compares the voltage level to the user-defined thresholds and generates an appropriate output signal. The enable input controls the power sequencing, ensuring that the system powers up and down in the correct order.

Detailed Application Field Plans

The LTC2909CTS8-2.5#TRPBF finds applications in various electronic systems where voltage monitoring and power sequencing are critical. Some specific application fields include:

1. Industrial Control Systems: Ensuring proper power sequencing and voltage monitoring in control panels and automation equipment.
2. Telecommunications: Monitoring voltage levels in communication devices and preventing damage due to improper power sequencing.
3. Automotive Electronics: Enhancing the reliability of automotive systems by monitoring voltage levels during startup and shutdown processes.
4. Medical Devices: Safeguarding sensitive medical equipment by monitoring voltage levels and controlling power sequencing.

Detailed and Complete Alternative Models

1. LTC2909CTS8-3.3#TRPBF: Similar to LTC2909CTS8-2.5#TRPBF, but with a voltage monitoring threshold of 3.3V.
2. LTC2909ITS8-2.5#TRPBF: Package and functionality similar to LTC2909CTS8-2.5#TRPBF, but operates over an extended temperature range (-40°C to +125°C).
3. LTC2909HMS8-2.5#TRPBF: A through-hole version of the LTC2909CTS8-2.5#TRPBF, suitable for applications requiring a different mounting method.

These alternative models provide similar voltage monitoring and power sequencing capabilities, catering to different requirements and preferences.

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