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LTC2909CDDB-3.3#TRMPBF
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LTC2909CDDB-3.3#TRMPBF

Product Overview

Category

LTC2909CDDB-3.3#TRMPBF belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

The LTC2909CDDB-3.3#TRMPBF features a precision voltage reference, a comparator, and a power-on reset circuit. It operates at a fixed 3.3V threshold voltage and offers accurate monitoring of power supply voltages.

Package

The LTC2909CDDB-3.3#TRMPBF comes in a DFN (Dual Flat No-Lead) package.

Essence

The essence of this product lies in its ability to provide reliable voltage monitoring and power-on reset functionality in various electronic systems.

Packaging/Quantity

The LTC2909CDDB-3.3#TRMPBF is typically packaged in reels and is available in quantities suitable for both small-scale and large-scale production.

Specifications

  • Threshold Voltage: 3.3V
  • Operating Temperature Range: -40°C to +85°C
  • Supply Voltage Range: 2.7V to 5.5V
  • Quiescent Current: 10μA (typical)
  • Output Type: Active Low

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground connection
  3. TH: Threshold voltage pin
  4. OUT: Output pin

Functional Features

Voltage Monitoring

The LTC2909CDDB-3.3#TRMPBF provides accurate monitoring of the input voltage and generates an active low output when the voltage falls below the 3.3V threshold.

Power-On Reset

The integrated power-on reset circuit ensures that the system remains in a known state during power-up, preventing erratic behavior.

Precision Voltage Reference

The built-in precision voltage reference ensures accurate voltage monitoring and reliable operation.

Advantages and Disadvantages

Advantages

  • Precise voltage monitoring
  • Power-on reset functionality
  • Compact DFN package
  • Wide operating temperature range

Disadvantages

  • Fixed threshold voltage may not be suitable for all applications
  • Limited output options

Working Principles

The LTC2909CDDB-3.3#TRMPBF operates by comparing the input voltage with the fixed 3.3V threshold. When the input voltage drops below this threshold, the output is driven low, indicating a fault condition or power loss.

The power-on reset circuit ensures that the output remains low during power-up until the input voltage rises above the threshold, providing a clean start for the system.

Detailed Application Field Plans

The LTC2909CDDB-3.3#TRMPBF finds applications in various fields, including:

  1. Power supply monitoring in industrial control systems
  2. Battery voltage monitoring in portable devices
  3. Power sequencing in communication equipment
  4. Fault detection in automotive electronics
  5. System reset in medical devices

Detailed and Complete Alternative Models

  1. LTC2909IDD-3.3#PBF
  2. LTC2909CDDB-3.3#PBF
  3. LTC2909IDD-3.3#TRMPBF
  4. LTC2909CDDB-3.3#TRM

These alternative models offer similar functionality and can be considered as alternatives to the LTC2909CDDB-3.3#TRMPBF.

In conclusion, the LTC2909CDDB-3.3#TRMPBF is an integrated circuit that provides precise voltage monitoring and power-on reset capabilities. Its compact package, wide operating temperature range, and reliable performance make it suitable for various applications in different industries.

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC2909CDDB-3.3#TRMPBF i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LTC2909CDDB-3.3#TRMPBF:

  1. Q: What is LTC2909CDDB-3.3#TRMPBF? A: LTC2909CDDB-3.3#TRMPBF is a specific model of the LTC2909 series, which is a voltage supervisor and watchdog timer IC.

  2. Q: What is the purpose of LTC2909CDDB-3.3#TRMPBF? A: The purpose of LTC2909CDDB-3.3#TRMPBF is to monitor the power supply voltage and provide reset signals or system wake-up signals based on predefined thresholds.

  3. Q: What voltage range does LTC2909CDDB-3.3#TRMPBF support? A: LTC2909CDDB-3.3#TRMPBF supports a voltage range from 1.6V to 5.5V.

  4. Q: Can LTC2909CDDB-3.3#TRMPBF be used in battery-powered applications? A: Yes, LTC2909CDDB-3.3#TRMPBF can be used in battery-powered applications as it operates within a wide voltage range and has low quiescent current.

  5. Q: How many threshold voltages can be set with LTC2909CDDB-3.3#TRMPBF? A: LTC2909CDDB-3.3#TRMPBF allows for two threshold voltages to be set, typically referred to as V1 and V2.

  6. Q: Can I adjust the threshold voltages of LTC2909CDDB-3.3#TRMPBF? A: Yes, the threshold voltages of LTC2909CDDB-3.3#TRMPBF can be adjusted using external resistors.

  7. Q: What is the watchdog timer feature of LTC2909CDDB-3.3#TRMPBF? A: The watchdog timer feature monitors the activity of a microcontroller or system and generates a reset signal if no activity is detected within a specified time period.

  8. Q: Can I disable the watchdog timer function in LTC2909CDDB-3.3#TRMPBF? A: Yes, the watchdog timer function can be disabled by connecting the WDI pin to VCC.

  9. Q: Does LTC2909CDDB-3.3#TRMPBF have any built-in hysteresis? A: Yes, LTC2909CDDB-3.3#TRMPBF has built-in hysteresis to prevent oscillation near the threshold voltages.

  10. Q: What package does LTC2909CDDB-3.3#TRMPBF come in? A: LTC2909CDDB-3.3#TRMPBF comes in a 6-pin DFN (Dual Flat No-Lead) package.

Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.