LTC2908IDDB-C1#TRMPBF

Overview

Category: Integrated Circuit (IC)

Use: Power Supply Monitor and Supervisor

Characteristics: - Monitors the power supply voltage and provides a reset signal when the voltage falls below a certain threshold - Can be used in various applications where reliable power supply monitoring is required - Offers high accuracy and low power consumption - Operates over a wide temperature range - Provides a small form factor for space-constrained designs

Package: DFN-6 (2mm x 3mm)

Essence: The LTC2908IDDB-C1#TRMPBF is an integrated circuit designed to monitor power supply voltages and generate a reset signal when the voltage drops below a specified level. It is commonly used in electronic systems to ensure proper operation and prevent data corruption or damage due to unstable power supply conditions.

Packaging/Quantity: The LTC2908IDDB-C1#TRMPBF is typically available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Input Voltage Range: 1.5V to 6V
• Reset Threshold Accuracy: ±1.5%
• Quiescent Current: 10μA (typical)
• Operating Temperature Range: -40°C to 125°C
• Output Type: Active Low Push-Pull
• Power-On Reset Timeout: 200ms (typical)

Pin Configuration

The LTC2908IDDB-C1#TRMPBF features a DFN-6 package with the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output --| VIN |-- Pin 3: Input Voltage --| GND |-- Pin 4: Ground (GND) --| GND |-- Pin 5: Ground (GND) --| VCC |-- Pin 6: Power Supply Voltage (VCC) |___________| ```

Functional Features

1. Power Supply Monitoring: The LTC2908IDDB-C1#TRMPBF continuously monitors the input voltage and compares it to a preset threshold. If the voltage falls below the threshold, the reset output is activated.

2. Reset Signal Generation: When the input voltage drops below the threshold, the reset output goes low, indicating a power supply fault or instability. This signal can be used to reset microcontrollers, digital logic circuits, or other system components.

3. Adjustable Threshold: The reset threshold can be adjusted using external resistors, allowing customization for different voltage levels.

4. Low Power Consumption: The IC operates with low quiescent current, minimizing power consumption and extending battery life in portable applications.

5. Wide Temperature Range: The LTC2908IDDB-C1#TRMPBF is designed to operate reliably over a wide temperature range, making it suitable for use in various environments.

Advantages

• High accuracy in monitoring power supply voltages
• Low power consumption for energy-efficient designs
• Small form factor enables space-saving integration
• Wide operating temperature range ensures reliability in diverse conditions

Disadvantages

• Requires external resistors for threshold adjustment
• Limited to a specific package type (DFN-6)

Working Principles

The LTC2908IDDB-C1#TRMPBF works by comparing the input voltage with a preset threshold voltage. When the input voltage falls below the threshold, the internal circuitry triggers the reset output to go low. This indicates a power supply fault or instability, allowing connected systems to take appropriate actions such as resetting or entering a safe state.

The threshold voltage can be adjusted using external resistors connected to the appropriate pins. This flexibility allows the LTC2908IDDB-C1#TRMPBF to be used in various applications with different voltage requirements.

Application Field Plans

The LTC2908IDDB-C1#TRMPBF finds applications in a wide range of electronic systems where reliable power supply monitoring is crucial. Some potential application fields include:

1. Embedded Systems: Used to monitor power supply voltages in microcontroller-based systems, ensuring stable operation and preventing data corruption.

2. Industrial Automation: Employed in control systems to monitor power supply integrity, enabling timely response to power failures and preventing equipment damage.

3. Telecommunications: Integrated into network infrastructure equipment to monitor power supplies and trigger system resets in case of voltage drops, ensuring uninterrupted communication.

4. Medical Devices: Utilized in medical equipment to monitor power supply conditions, guaranteeing patient safety and preventing malfunctions due to unstable voltages.

5. Automotive Electronics: Incorporated into automotive systems to monitor power supply stability, protecting sensitive electronics from voltage fluctuations and ensuring reliable operation.

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