LTC2951ITS8-1#TRMPBF

Product Overview

Category

The LTC2951ITS8-1#TRMPBF belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power supply monitoring and battery control applications in various electronic devices.

Characteristics

• Power supply monitoring: The LTC2951ITS8-1#TRMPBF provides accurate monitoring of the input voltage and can initiate actions based on predefined thresholds.
• Battery control: It offers features like battery backup switchover, low battery detection, and charging control.
• Low power consumption: The IC itself consumes very low power, making it suitable for battery-powered devices.
• Wide operating voltage range: It can operate within a wide range of input voltages, typically from 2.7V to 26V.
• Small package size: The LTC2951ITS8-1#TRMPBF comes in an SOT-23-8 package, which is compact and space-saving.
• RoHS compliant: This product meets the Restriction of Hazardous Substances directive, ensuring environmental friendliness.

Package and Quantity

The LTC2951ITS8-1#TRMPBF is available in an SOT-23-8 package. It is typically sold in reels or tubes containing a specific quantity, such as 2500 units per reel.

Specifications

• Input Voltage Range: 2.7V to 26V
• Operating Temperature Range: -40°C to 85°C
• Quiescent Current: 10µA (typical)
• Output Voltage Range: 1.5V to 24V
• Battery Backup Switchover Threshold: Programmable
• Low Battery Detection Threshold: Programmable
• Charging Control: Programmable charge current limit

Pin Configuration

The LTC2951ITS8-1#TRMPBF has eight pins arranged as follows:

``` 1 2 3 4

---

| | | | | | |____________| 5 6 7 8 ```

Pin Description: 1. VIN - Input voltage pin 2. GND - Ground pin 3. VOUT - Output voltage pin 4. BAT - Battery input pin 5. EN - Enable pin 6. TMR - Timer pin 7. FLT - Fault output pin 8. VCC - Supply voltage pin

Functional Features

1. Power supply monitoring: The LTC2951ITS8-1#TRMPBF continuously monitors the input voltage and can generate an interrupt or initiate actions based on user-defined thresholds.
2. Battery backup switchover: It allows seamless switching between the main power supply and a backup battery, ensuring uninterrupted operation during power outages.
3. Low battery detection: The IC can detect when the battery voltage drops below a certain threshold, enabling the system to take appropriate actions like warning the user or initiating a shutdown.
4. Charging control: It provides programmable charge current limit functionality, allowing efficient and controlled charging of batteries.
5. Fault detection: The fault output pin (FLT) can be used to indicate various fault conditions, such as overvoltage or undervoltage events.

Advantages and Disadvantages

Advantages

• Accurate power supply monitoring ensures reliable operation of electronic devices.
• Seamless switchover between power sources guarantees uninterrupted functionality.
• Low power consumption prolongs battery life in portable devices.
• Programmable features provide flexibility for different applications.
• Small package size saves board space in compact designs.

Disadvantages

• Limited to specific power management applications and may not be suitable for all electronic devices.
• Requires proper configuration and integration into the system, which may require technical expertise.

Working Principles

The LTC2951ITS8-1#TRMPBF operates by continuously monitoring the input voltage and comparing it to user-defined thresholds. It utilizes an internal timer to generate interrupts or initiate actions based on these thresholds. The IC also incorporates circuitry for battery backup switchover, low battery detection, and charging control. By intelligently managing power sources and providing accurate monitoring, it ensures reliable operation and efficient power management in electronic devices.

Detailed Application Field Plans

The LTC2951ITS8-1#TRMPBF finds applications in various fields, including but not limited to: - Portable electronic devices: It can be used in smartphones, tablets, portable gaming consoles, and other battery-powered devices to monitor power supply and manage battery backup. - Industrial automation: The IC can be integrated into industrial control systems to monitor power inputs, detect faults, and ensure uninterrupted operation during power fluctuations. - Automotive electronics: It can be employed in automotive applications to monitor battery voltage, control charging, and provide fault detection for enhanced safety