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LTC2947IUFE

LTC2947IUFE

Product Overview

Category

LTC2947IUFE belongs to the category of integrated circuits (ICs) used in electronic devices.

Use

This product is primarily used for monitoring and measuring battery charge and discharge in various applications.

Characteristics

  • Integrated circuit designed for battery monitoring
  • Accurate measurement of battery voltage, current, and charge
  • Wide operating voltage range
  • Low power consumption
  • High precision measurements
  • Compact package size

Package

LTC2947IUFE is available in a small form factor package, making it suitable for space-constrained applications.

Essence

The essence of LTC2947IUFE lies in its ability to accurately monitor and measure battery parameters, enabling efficient management of battery usage.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Operating Voltage Range: 2.7V to 5.5V
  • Battery Voltage Measurement Range: 0V to 15V
  • Current Measurement Range: ±30A
  • Charge Measurement Range: ±1024mAh
  • Temperature Measurement Range: -40°C to 125°C
  • Communication Interface: I2C/SMBus
  • Package Type: 24-Lead QFN

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. SDA: Serial data input/output for I2C communication
  4. SCL: Serial clock input for I2C communication
  5. ALERT: Interrupt output for status indication
  6. VIN: Battery voltage input
  7. IIN: Battery current input
  8. TEMP: Temperature sensor input
  9. VREF: Reference voltage output
  10. VBAT: Battery voltage output
  11. VSENSE: Current sense voltage output 12-24. NC: No connection

Functional Features

  • Accurate measurement of battery voltage, current, and charge
  • Temperature monitoring for thermal management
  • Programmable alert thresholds for various parameters
  • I2C/SMBus interface for easy integration with microcontrollers
  • On-chip temperature sensor for ambient temperature measurement
  • Low power consumption for extended battery life
  • High precision measurements for reliable data analysis

Advantages and Disadvantages

Advantages

  • Precise battery monitoring enables efficient power management
  • Wide operating voltage range allows compatibility with various battery types
  • Compact package size facilitates integration into space-constrained designs
  • Programmable alert thresholds provide flexibility in system control

Disadvantages

  • Limited to I2C/SMBus communication interface
  • May require additional external components for certain applications
  • Not suitable for high-current applications exceeding ±30A

Working Principles

LTC2947IUFE operates by measuring the voltage across a battery and the current flowing through it. By integrating these measurements over time, it accurately calculates the battery charge. The device also incorporates a temperature sensor to monitor the ambient temperature. All measurements and calculations are performed internally, and the results can be accessed via the I2C/SMBus interface.

Detailed Application Field Plans

LTC2947IUFE finds application in various fields, including but not limited to: 1. Portable electronic devices 2. Battery-powered medical equipment 3. Industrial automation systems 4. Energy storage systems 5. Electric vehicles

In portable electronic devices, LTC2947IUFE ensures optimal battery usage and provides accurate battery status information to the user. In medical equipment, it enables precise monitoring of battery health and helps prevent unexpected shutdowns. In industrial automation systems, the IC aids in efficient power management and enhances overall system reliability. Energy storage systems benefit from LTC2947IUFE's accurate charge measurement, ensuring optimal utilization of stored energy. Electric vehicles utilize this IC for monitoring battery performance and optimizing charging/discharging cycles.

Detailed and Complete Alternative Models

  1. LTC2946IUFE: Similar to LTC2947IUFE but with a different pin configuration
  2. MAX17055G+T: Battery fuel gauge IC with similar functionality
  3. BQ34Z100-G1: Impedance track™ fuel gauge IC suitable for battery monitoring
  4. INA226AIDGSR: High-side current/power monitor with integrated shunt resistor
  5. MCP73871-2CCI/ML: Standalone linear Li-Ion/Li-Polymer charge management controller

These alternative models offer similar features and functionalities to LTC2947IUFE and can be considered as alternatives based on specific application requirements.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LTC2947IUFE i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LTC2947IUFE in technical solutions:

  1. Q: What is LTC2947IUFE? A: LTC2947IUFE is a high-precision power and energy monitor with an integrated coulomb counter.

  2. Q: What are the key features of LTC2947IUFE? A: The key features include accurate current, voltage, power, charge, and energy measurements, I2C interface, programmable alerts, and wide input voltage range.

  3. Q: How can LTC2947IUFE be used in technical solutions? A: LTC2947IUFE can be used in various applications such as battery monitoring, power management systems, portable devices, IoT devices, and energy harvesting systems.

  4. Q: What is the input voltage range supported by LTC2947IUFE? A: LTC2947IUFE supports an input voltage range from 2.7V to 80V.

  5. Q: Can LTC2947IUFE measure both positive and negative currents? A: Yes, LTC2947IUFE can accurately measure both positive and negative currents.

  6. Q: Does LTC2947IUFE have any built-in protection features? A: Yes, LTC2947IUFE has built-in overvoltage and undervoltage lockout protection.

  7. Q: What is the resolution of the current measurement provided by LTC2947IUFE? A: LTC2947IUFE provides a current measurement resolution of 0.51µA.

  8. Q: Can LTC2947IUFE generate alerts based on specific conditions? A: Yes, LTC2947IUFE has programmable alert thresholds that can trigger interrupts or set flags based on user-defined conditions.

  9. Q: Is LTC2947IUFE compatible with I2C interface? A: Yes, LTC2947IUFE communicates with the host microcontroller using the standard I2C interface.

  10. Q: Are there any evaluation boards or reference designs available for LTC2947IUFE? A: Yes, Linear Technology (now part of Analog Devices) provides evaluation boards and reference designs to help users quickly prototype and integrate LTC2947IUFE into their applications.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.