LTC2909CDDB-3.3#TRPBF

Product Overview

Category

LTC2909CDDB-3.3#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 applications.

Characteristics

The LTC2909CDDB-3.3#TRPBF features a low-power, dual-supply monitor with adjustable reset timeout delay. It operates over a wide voltage range and offers precise monitoring of two separate supplies.

Package

The LTC2909CDDB-3.3#TRPBF is available in a 10-lead DFN package.

Essence

The essence of this product lies in its ability to accurately monitor multiple power supplies and provide a reset signal when necessary.

Packaging/Quantity

The LTC2909CDDB-3.3#TRPBF is typically packaged in reels and comes in quantities of 2500 units per reel.

Specifications

• Supply Voltage Range: 2.5V to 6V
• Adjustable Reset Timeout Delay: 1ms to 10s
• Quiescent Current: 20μA
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

1. VCC1: Positive supply voltage for monitor 1
2. GND1: Ground for monitor 1
3. RESET1: Active-low reset output for monitor 1
4. MR1: Monitor 1 reset timeout adjustment pin
5. VCC2: Positive supply voltage for monitor 2
6. GND2: Ground for monitor 2
7. RESET2: Active-low reset output for monitor 2
8. MR2: Monitor 2 reset timeout adjustment pin
9. GND: Common ground
10. VCC: Positive supply voltage

Functional Features

• Dual-supply monitoring: Monitors two separate power supplies simultaneously.
• Adjustable reset timeout delay: Allows customization of the time delay before generating a reset signal.
• Precision monitoring: Provides accurate monitoring of supply voltages with low quiescent current.

Advantages and Disadvantages

Advantages

• Wide supply voltage range enables compatibility with various systems.
• Adjustable reset timeout delay offers flexibility in different applications.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited to monitoring two power supplies only.
• Requires external components for proper operation.

Working Principles

The LTC2909CDDB-3.3#TRPBF operates by continuously monitoring the voltage levels of two separate power supplies. It compares these voltages to a reference threshold and generates an active-low reset signal when the voltage falls below the threshold for a specified period, as determined by the adjustable reset timeout delay.

Detailed Application Field Plans

The LTC2909CDDB-3.3#TRPBF finds applications in various electronic devices where reliable voltage monitoring and power supply sequencing are critical. Some specific application fields include:

1. Industrial control systems: Ensures stable power supply for critical components in industrial automation.
2. Telecommunications equipment: Monitors power supply integrity in network infrastructure devices.
3. Medical devices: Provides voltage monitoring and reset functionality for medical equipment.
4. Automotive electronics: Ensures proper power sequencing and protection in automotive applications.
5. Consumer electronics: Enhances system reliability by monitoring power supply voltages in consumer devices.

Detailed and Complete Alternative Models

1. LTC2909IDD-3.3#PBF: Similar to LTC2909CDDB-3.3#TRPBF but available in a 10-lead MSOP package.
2. LTC2909IDDB-3.3#TRPBF: Similar to LTC2909CDDB-3.3#TRPBF but available in a 10-lead DFN package with a different pin configuration.
3. LTC2909HDD-3.3#PBF: High-temperature version of LTC2909IDD-3.3#PBF, suitable for harsh environments.

These alternative models offer similar functionality and characteristics, providing options for different packaging preferences or specific application requirements.

In conclusion, the LTC2909CDDB-3.3#TRPBF is a versatile integrated circuit used for voltage monitoring and power supply sequencing applications. Its adjustable reset timeout delay, precision monitoring, and wide supply voltage range make it suitable for various electronic devices across different industries.