Linear Technology/Analog Devices
Kuva saattaa olla esitys.
Katso tuotteen tekniset tiedot.
LTC2919IDDB-3.3#TRMPBF
Näytä Yksityiskohdat DataSheets

LTC2919IDDB-3.3#TRMPBF

Product Overview

Category

LTC2919IDDB-3.3#TRMPBF 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 LTC2919IDDB-3.3#TRMPBF features a low voltage threshold detector with adjustable hysteresis. It operates at a supply voltage of 2.7V to 5.5V and has a fixed output voltage of 3.3V. The device offers accurate voltage monitoring and reliable power supply sequencing capabilities.

Package

The LTC2919IDDB-3.3#TRMPBF comes in a small 8-pin DFN (Dual Flat No-Lead) package, which ensures compactness and ease of integration into various electronic systems.

Essence

The essence of this product lies in its ability to monitor voltage levels and control power supply sequencing, ensuring proper operation and protection of electronic devices.

Packaging/Quantity

The LTC2919IDDB-3.3#TRMPBF is typically available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

  • Supply Voltage: 2.7V to 5.5V
  • Output Voltage: 3.3V
  • Adjustable Hysteresis Range: 1mV to 100mV
  • Operating Temperature Range: -40°C to +85°C
  • Quiescent Current: 20μA (typical)

Detailed Pin Configuration

The LTC2919IDDB-3.3#TRMPBF has the following pin configuration:

  1. GND (Ground)
  2. IN (Voltage Input)
  3. HYST (Hysteresis Adjustment)
  4. VCC (Supply Voltage)
  5. GATE (Output Enable)
  6. FLT (Fault Output)
  7. NC (No Connection)
  8. OUT (Voltage Output)

Functional Features

  • Voltage Monitoring: The LTC2919IDDB-3.3#TRMPBF accurately monitors the input voltage and provides a corresponding output signal.
  • Power Supply Sequencing: This device ensures proper sequencing of power supplies, preventing potential damage to electronic components.
  • Adjustable Hysteresis: The hysteresis can be adjusted to suit specific application requirements, providing flexibility in voltage monitoring.
  • Fault Detection: The FLT pin indicates any fault condition, alerting the system to potential issues.

Advantages and Disadvantages

Advantages

  • Accurate voltage monitoring
  • Reliable power supply sequencing
  • Adjustable hysteresis for customization
  • Compact package for easy integration

Disadvantages

  • Limited operating temperature range (-40°C to +85°C)
  • Requires external components for complete functionality

Working Principles

The LTC2919IDDB-3.3#TRMPBF operates by comparing the input voltage with a reference voltage. When the input voltage crosses the threshold, the output is activated, indicating the monitored voltage level. The hysteresis feature prevents false triggering due to noise or fluctuations in the input voltage.

Detailed Application Field Plans

The LTC2919IDDB-3.3#TRMPBF finds applications in various fields, including:

  1. Power Management Systems: It ensures proper voltage monitoring and sequencing in power management circuits.
  2. Battery-Powered Devices: The device helps monitor battery voltage levels and prevent over-discharge.
  3. Industrial Control Systems: It provides reliable voltage monitoring in industrial control systems, ensuring stable operation.

Detailed and Complete Alternative Models

  1. LTC2919IDDB-5#TRMPBF: Similar to LTC2919IDDB-3.3#TRMPBF, but with a fixed output voltage of 5V.
  2. LTC2919IDDB-1.8#TRMPBF: Similar to LTC2919IDDB-3.3#TRMPBF, but with a fixed output voltage of 1.8V.
  3. LTC2919IDDB-ADJ#TRMPBF: Similar to LTC2919IDDB-3.3#TRMPBF, but with an adjustable output voltage.

These alternative models provide options for different voltage requirements in various applications.

Word count: 496 words

Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät LTC2919IDDB-3.3#TRMPBF :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of LTC2919IDDB-3.3#TRMPBF:

  1. Q: What is LTC2919IDDB-3.3#TRMPBF? A: LTC2919IDDB-3.3#TRMPBF is a specific model of a voltage supervisor IC (Integrated Circuit) manufactured by Linear Technology (now part of Analog Devices). It is designed to monitor the power supply voltage and provide various functions like power-on reset, watchdog timer, and fault detection.

  2. Q: What is the operating voltage range of LTC2919IDDB-3.3#TRMPBF? A: The operating voltage range of LTC2919IDDB-3.3#TRMPBF is typically between 2.7V and 5.5V.

  3. Q: How does LTC2919IDDB-3.3#TRMPBF provide power-on reset functionality? A: LTC2919IDDB-3.3#TRMPBF monitors the power supply voltage and generates a reset signal when the voltage rises above a certain threshold. This ensures that the system starts in a known state after power-up.

  4. Q: Can LTC2919IDDB-3.3#TRMPBF be used as a watchdog timer? A: Yes, LTC2919IDDB-3.3#TRMPBF has a built-in watchdog timer feature. It can monitor the activity of a microcontroller or other system components and generate a reset signal if no activity is detected within a specified time period.

  5. Q: What is the purpose of the fault detection feature in LTC2919IDDB-3.3#TRMPBF? A: The fault detection feature in LTC2919IDDB-3.3#TRMPBF allows it to monitor various fault conditions like undervoltage, overvoltage, and overtemperature. It can generate an alert or take appropriate action when such faults occur.

  6. Q: Can LTC2919IDDB-3.3#TRMPBF be used in battery-powered applications? A: Yes, LTC2919IDDB-3.3#TRMPBF can be used in battery-powered applications as long as the operating voltage range (2.7V to 5.5V) is within the battery's voltage range.

  7. Q: How many outputs does LTC2919IDDB-3.3#TRMPBF have? A: LTC2919IDDB-3.3#TRMPBF has two open-drain outputs, OUT1 and OUT2, which can be configured for different functions like power-on reset, watchdog timer, or fault detection.

  8. Q: What is the typical quiescent current consumption of LTC2919IDDB-3.3#TRMPBF? A: The typical quiescent current consumption of LTC2919IDDB-3.3#TRMPBF is around 10µA, making it suitable for low-power applications.

  9. Q: Can LTC2919IDDB-3.3#TRMPBF be used in automotive applications? A: Yes, LTC2919IDDB-3.3#TRMPBF is designed to meet automotive-grade specifications and can be used in automotive applications where voltage monitoring and fault detection are required.

  10. Q: Are there any application notes or reference designs available for LTC2919IDDB-3.3#TRMPBF? A: Yes, Analog Devices provides application notes and reference designs on their website that can help users understand and implement LTC2919IDDB-3.3#TRMPBF in their technical solutions.

Please note that the answers provided here are general and may vary depending on specific requirements and use cases. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information and guidelines.