LTC2911HTS8-3

Product Overview

Category

LTC2911HTS8-3 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• Voltage monitoring: The LTC2911HTS8-3 provides precise voltage monitoring capabilities, allowing users to monitor critical voltages in their systems.
• Power supply sequencing: It also enables power supply sequencing, ensuring that different power supplies are turned on/off in a specific order to prevent damage to sensitive components.
• Package: LTC2911HTS8-3 comes in an 8-pin TSOT-23 package, which is compact and suitable for space-constrained applications.
• Essence: The essence of this product lies in its ability to accurately monitor voltages and control power supply sequencing, enhancing system reliability and protection.
• Packaging/Quantity: LTC2911HTS8-3 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

The specifications of LTC2911HTS8-3 include:

• Supply Voltage Range: 2.7V to 6V
• Voltage Monitoring Threshold Accuracy: ±1.5%
• Power-On Reset Timeout: 200ms
• Quiescent Current: 20µA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

LTC2911HTS8-3 has the following pin configuration:

1. GND: Ground connection
2. IN: Input voltage to be monitored
3. TH: Threshold voltage input
4. VCC: Supply voltage input
5. /RESET: Active-low reset output
6. /PWRGD: Active-low power good output
7. /FAULT: Active-low fault output
8. NC: No connection

Functional Features

The LTC2911HTS8-3 offers the following functional features:

• Voltage Monitoring: It compares the input voltage (IN) with the threshold voltage (TH) and generates appropriate outputs based on the comparison result.
• Power-On Reset: The /RESET output is asserted low during power-up and remains low until the supply voltage stabilizes, ensuring a controlled system startup.
• Power Good Output: The /PWRGD output indicates when the input voltage is within the desired range, providing a signal for downstream components to start operation.
• Fault Output: The /FAULT output signals when the input voltage falls below the threshold, indicating a fault condition.

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures system stability and reliability.
• Power supply sequencing prevents potential damage to sensitive components.
• Compact package allows for space-efficient integration into various applications.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited voltage range of 2.7V to 6V may not be suitable for all applications requiring voltage monitoring.
• Threshold accuracy of ±1.5% may not meet the requirements of highly precise systems.

Working Principles

LTC2911HTS8-3 operates by comparing the input voltage (IN) with the threshold voltage (TH). When the input voltage exceeds the threshold, the /PWRGD output is asserted high, indicating a valid power supply. Conversely, if the input voltage falls below the threshold, the /FAULT output is asserted low, signaling a fault condition. The /RESET output provides a power-on reset signal during startup.

Detailed Application Field Plans

LTC2911HTS8-3 finds applications in various fields, including:

1. Power Supply Monitoring: It can be used to monitor critical voltages in power supply units, ensuring stable and reliable operation.
2. Industrial Control Systems: The product can be integrated into industrial control systems to monitor voltage levels and prevent potential damage to equipment.
3. Automotive Electronics: It finds use in automotive electronics, where precise voltage monitoring is crucial for the proper functioning of various components.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to LTC2911HTS8-3 include:

1. MAX16050: This IC provides voltage monitoring and sequencing capabilities with a wider supply voltage range.
2. ADM1185: It offers voltage monitoring and power supply sequencing features along with additional fault detection capabilities.
3. TPS3700: This device provides precise voltage monitoring and power-on reset functionality in a compact package.

These alternative models can be considered based on specific application requirements and desired specifications.

Word count: 536 words