LTC2906ITS8#TRMPBF

Product Overview

• Category: Integrated Circuit
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low Power, Precision Monitoring, Programmable Thresholds
• Package: SOT-23-8
• Essence: Monitors voltage levels and provides reset signals to microcontrollers or other digital systems.
• Packaging/Quantity: Tape & Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.6V to 6V
• Threshold Voltage Range: 0.4V to VCC - 0.2V
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low / Open-Drain
• Reset Timeout Period: 200ms (typical)

Pin Configuration

The LTC2906ITS8#TRMPBF has the following pin configuration:

```

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| | --| RESETOUT | --| GND | --| VIN | --| TH | --| GND | --| GND | --| VCC | |___________| ```

Functional Features

1. Voltage Monitoring: The LTC2906ITS8#TRMPBF monitors the input voltage (VIN) and compares it with the programmable threshold voltage (TH). It generates a reset signal (RESETOUT) when the voltage falls below the threshold.

2. Precision Monitoring: The device offers high accuracy in voltage monitoring, ensuring reliable operation of the system.

3. Programmable Thresholds: The threshold voltage can be set using an external resistor divider network, allowing flexibility in defining the desired voltage level for triggering the reset signal.

4. Low Power Consumption: With a quiescent current of only 1.5µA, the LTC2906ITS8#TRMPBF minimizes power consumption, making it suitable for battery-powered applications.

Advantages

• Compact Package: The SOT-23-8 package provides a small footprint, saving board space in compact designs.
• Wide Supply Voltage Range: The device operates over a wide voltage range, accommodating various power supply configurations.
• Flexible Threshold Setting: The programmable threshold feature allows customization according to specific system requirements.
• Low Power Consumption: The low quiescent current ensures minimal power drain, extending battery life.

Disadvantages

• Limited Reset Timeout Period: The fixed reset timeout period of 200ms may not be suitable for all applications requiring longer or shorter timeouts.

Working Principles

The LTC2906ITS8#TRMPBF continuously monitors the input voltage (VIN) using an internal voltage reference. It compares the VIN with the threshold voltage (TH) set by an external resistor divider network. When the VIN falls below the threshold, the RESETOUT pin is pulled low, generating a reset signal. The reset signal remains active until the VIN rises above the threshold and the reset timeout period elapses.

Application Field Plans

The LTC2906ITS8#TRMPBF finds applications in various fields, including:

1. Battery-Powered Devices: It can be used in portable electronics, such as smartphones, tablets, and wearable devices, to monitor battery voltage and initiate system resets if necessary.

2. Industrial Control Systems: The device ensures reliable operation of control systems by monitoring critical voltage levels and providing reset signals to microcontrollers or PLCs.

3. Automotive Electronics: It can be employed in automotive applications to monitor vehicle battery voltage and trigger resets in case of voltage drops, preventing system malfunctions.

4. Home Automation: The LTC2906ITS8#TRMPBF can be integrated into smart home systems to monitor power supply voltages and initiate resets in case of power fluctuations or failures.

Alternative Models

1. LTC2906ITS8#TRPBF: Similar to LTC2906ITS8#TRMPBF, but without the programmable threshold feature.
2. LTC2906ITS8#TR: Active-High / Open-Drain output type variant of LTC2906ITS8#TRMPBF.
3. LTC2906ITS8#TRM: Monitors multiple voltage thresholds with individual reset outputs.

Note: Please refer to the manufacturer's datasheet for detailed specifications and additional alternative models.

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