LTC2909CTS8-5#TRPBF

Product Overview

Category

LTC2909CTS8-5#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: LTC2909CTS8-5#TRPBF provides accurate monitoring of voltage levels.
• Power supply sequencing: It ensures proper power-up and power-down sequencing in complex systems.
• Package: The product comes in a small SOT-23 package, which is suitable for space-constrained applications.
• Essence: LTC2909CTS8-5#TRPBF is an essential component for reliable power management in various electronic systems.
• Packaging/Quantity: It is typically sold in reels containing a specified quantity of units.

Specifications

The specifications of LTC2909CTS8-5#TRPBF include:

• Supply Voltage Range: 2.7V to 6V
• Threshold Voltage Accuracy: ±1.5%
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 20µA (typical)
• Output Type: Active Low/Open Drain
• Response Time: 200µs (typical)

Pin Configuration

The pin configuration of LTC2909CTS8-5#TRPBF is as follows:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| VIN OUT |-- Pin 2: Output (OUT) --| TH EN |-- Pin 3: Enable (EN) |___________| ```

Functional Features

The functional features of LTC2909CTS8-5#TRPBF are as follows:

• Voltage Monitoring: The device continuously monitors the input voltage and compares it to a programmable threshold.
• Power Sequencing: It ensures proper sequencing of power supplies, preventing potential damage to sensitive components.
• Adjustable Threshold: The threshold voltage can be set using an external resistor divider network, allowing flexibility in monitoring different voltage levels.
• Enable Pin: The enable pin provides control over the device's operation, allowing for power-saving modes when not actively monitoring.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring for reliable system operation.
• Small package size suitable for space-constrained applications.
• Flexible threshold voltage adjustment.
• Power-saving features with the enable pin.

Disadvantages

• Limited operating temperature range (-40°C to +85°C).
• Output type is limited to active low/open drain.

Working Principles

LTC2909CTS8-5#TRPBF operates based on a voltage comparator principle. It continuously compares the input voltage (VIN) to the programmable threshold voltage (TH). When the input voltage falls below the threshold, the output (OUT) becomes active low or open drain, indicating a fault condition. The enable pin (EN) allows for control over the device's operation, enabling power-saving modes when not actively monitoring.

Detailed Application Field Plans

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

1. Industrial Automation: Monitoring critical voltage levels in industrial control systems.
2. Automotive Electronics: Ensuring proper power sequencing in automotive electronic modules.
3. Telecommunications: Voltage monitoring in telecom infrastructure equipment.
4. Consumer Electronics: Power management in portable devices and battery-powered systems.
5. Medical Devices: Monitoring voltage levels in medical equipment for patient safety.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LTC2909CTS8-5#TRPBF are:

1. MAX16050: Integrated circuit voltage monitor with adjustable threshold and power sequencing capabilities.
2. ADM1175: Precision voltage supervisor with adjustable threshold and power supply monitoring features.
3. TPS3700: Ultra-small, low-power voltage supervisor with programmable threshold and power sequencing options.

These alternative models provide comparable functionality and can be considered as alternatives to LTC2909CTS8-5#TRPBF based on specific application requirements.

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