LTC2951ITS8-1#TRPBF
Product Overview
Category
The LTC2951ITS8-1#TRPBF belongs to the category of integrated circuits (ICs).
Use
This product is primarily used for power supply monitoring and battery management applications.
Characteristics
- Integrated circuit
- Power supply monitoring
- Battery management
- Low power consumption
- Small form factor
- High accuracy
Package
The LTC2951ITS8-1#TRPBF comes in a small SOT-23-8 package.
Essence
The essence of this product lies in its ability to monitor power supply voltages and manage battery charging/discharging processes.
Packaging/Quantity
The LTC2951ITS8-1#TRPBF is typically packaged in reels, with 3000 units per reel.
Specifications
- Supply Voltage Range: 2.7V to 26.4V
- Quiescent Current: 950nA
- Operating Temperature Range: -40°C to 85°C
- Power-On Reset Threshold: Adjustable from 1.5V to 5V
- Battery Backup Input Voltage Range: 2.7V to 26.4V
- Battery Charger Input Voltage Range: 3.6V to 26.4V
- Battery Charger Current Limit: Up to 500mA
Detailed Pin Configuration
The LTC2951ITS8-1#TRPBF has the following pin configuration:
- GND: Ground connection
- VIN: Power supply input voltage
- VBAT: Battery backup input voltage
- BAT: Battery charger input voltage
- EN: Enable pin for power supply monitoring
- PFI: Power fail indicator output
- PFO: Power fail output
- RST: Reset output
Functional Features
- Power Supply Monitoring: The LTC2951ITS8-1#TRPBF can monitor the input power supply voltage and generate a reset signal when it falls below a certain threshold.
- Battery Management: It provides battery backup input and battery charger input, allowing for seamless switching between power sources.
- Power Fail Indicator: The PFI pin can be used to indicate a power failure condition.
- Reset Output: The RST pin generates a reset signal to the system when the power supply voltage drops below the specified threshold.
Advantages and Disadvantages
Advantages
- Low power consumption
- High accuracy in power supply monitoring
- Small form factor for space-constrained applications
- Adjustable power-on reset threshold
- Battery management capabilities
Disadvantages
- Limited maximum battery charger current limit (up to 500mA)
- Restricted operating temperature range (-40°C to 85°C)
Working Principles
The LTC2951ITS8-1#TRPBF operates by continuously monitoring the input power supply voltage. When the voltage falls below the adjustable power-on reset threshold, it generates a reset signal to the system. Additionally, it allows for seamless switching between the battery backup input and the battery charger input, ensuring uninterrupted power supply.
Detailed Application Field Plans
The LTC2951ITS8-1#TRPBF finds applications in various fields, including but not limited to: - Portable electronic devices - Battery-powered systems - Industrial automation - Automotive electronics - Internet of Things (IoT) devices
Detailed and Complete Alternative Models
- LTC2950ITS8-1#TRPBF: Similar to LTC2951ITS8-1#TRPBF, but without battery charger input capability.
- LTC2952ITS8-1#TRPBF: Enhanced version with extended operating temperature range (-40°C to 125°C) and higher battery charger current limit (up to 1A).
These alternative models provide options based on specific requirements and operating conditions.
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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät LTC2951ITS8-1#TRPBF :n soveltamiseen teknisissä ratkaisuissa
Sure! Here are 10 common questions and answers related to the application of LTC2951ITS8-1#TRPBF:
Q1: What is LTC2951ITS8-1#TRPBF? A1: LTC2951ITS8-1#TRPBF is a power supply monitor and push-button controller IC manufactured by Linear Technology (now part of Analog Devices). It is commonly used in technical solutions to monitor power supply voltage levels and control system startup and shutdown.
Q2: What are the key features of LTC2951ITS8-1#TRPBF? A2: Some key features of LTC2951ITS8-1#TRPBF include undervoltage and overvoltage monitoring, adjustable power-on reset delay, push-button input for manual system control, and low quiescent current consumption.
Q3: How does LTC2951ITS8-1#TRPBF monitor power supply voltage levels? A3: LTC2951ITS8-1#TRPBF monitors power supply voltage levels by comparing the input voltage with user-defined thresholds. It has separate undervoltage and overvoltage comparators that can be configured to trigger specific actions when the voltage crosses these thresholds.
Q4: Can LTC2951ITS8-1#TRPBF be used to control system startup and shutdown? A4: Yes, LTC2951ITS8-1#TRPBF can be used to control system startup and shutdown. It has an enable output pin that can be connected to the system's power supply enable pin, allowing it to control the power supply to the system.
Q5: How can I adjust the power-on reset delay using LTC2951ITS8-1#TRPBF? A5: The power-on reset delay can be adjusted by connecting an external capacitor to the CT pin of LTC2951ITS8-1#TRPBF. The value of this capacitor determines the delay time.
Q6: Can I use LTC2951ITS8-1#TRPBF in battery-powered applications? A6: Yes, LTC2951ITS8-1#TRPBF can be used in battery-powered applications. It has a low quiescent current consumption, which helps to minimize power consumption and extend battery life.
Q7: What is the maximum input voltage that LTC2951ITS8-1#TRPBF can handle? A7: The maximum input voltage that LTC2951ITS8-1#TRPBF can handle is 80V.
Q8: Does LTC2951ITS8-1#TRPBF have any built-in protection features? A8: Yes, LTC2951ITS8-1#TRPBF has built-in protection features such as reverse battery protection and overvoltage lockout.
Q9: Can I use multiple LTC2951ITS8-1#TRPBF devices in parallel? A9: Yes, multiple LTC2951ITS8-1#TRPBF devices can be used in parallel to monitor and control different parts of a system.
Q10: Is there any evaluation board available for LTC2951ITS8-1#TRPBF? A10: Yes, Analog Devices provides an evaluation board (DC2228A) for LTC2951ITS8-1#TRPBF, which can help users quickly prototype and evaluate the IC's performance in their specific applications.
Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information and guidelines.