Overview
The LTC2947IUFE#TRPBF, produced by Analog Devices Inc., is a high-precision power and energy monitor integrated circuit. This device is designed to measure current, voltage, power, charge, and energy with high accuracy. It features an internal 300µΩ, temperature-compensated sense resistor, which minimizes efficiency loss and simplifies energy measurement applications. The LTC2947 supports a wide range of applications due to its precise measurement capabilities and flexible interface options.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Current Range | ±30A | A |
| Input Voltage Range | 0V to 15V | V |
| Voltage Accuracy | ±0.5% | % of reading |
| Current and Charge Accuracy | ±1% | % of reading |
| Power and Energy Accuracy | ±1.2% | % of reading |
| ADC Resolution (Voltage Sense) | 14 bit | |
| Power Measurement Resolution | 18 bit | |
| Full-Scale Power | 450 W | W |
| Operating Temperature Range | –40°C to 85°C | °C |
| Package Type | 32-Lead (4mm × 6mm) Plastic QFN |
Key Features
- High-precision measurement of current, voltage, power, charge, and energy.
- Internal 300µΩ, temperature-compensated sense resistor.
- Three internal No Latency Δ∑™ ADCs for accurate measurements.
- Instantaneous multiplication of voltage and current for accurate power measurement.
- Programmable high and low thresholds for all measured quantities.
- Selectable I2C/SPI interface for data communication.
- Shutdown mode with IQ < 10μA.
- Stores maximum and minimum values of measured quantities.
Applications
The LTC2947IUFE#TRPBF is suitable for a variety of applications that require precise power and energy monitoring, such as:
- Power supplies and DC-DC converters.
- Battery management systems.
- Industrial control systems.
- Aerospace and defense systems.
- Automotive systems.
Q & A
- What is the current range of the LTC2947IUFE#TRPBF?
The current range of the LTC2947IUFE#TRPBF is ±30A. - What is the input voltage range of the LTC2947IUFE#TRPBF?
The input voltage range is 0V to 15V. - What is the accuracy of voltage measurement in the LTC2947IUFE#TRPBF?
The voltage accuracy is ±0.5% of reading. - Does the LTC2947IUFE#TRPBF support both I2C and SPI interfaces?
Yes, it supports both I2C and SPI interfaces. - What is the operating temperature range of the LTC2947IUFE#TRPBF?
The operating temperature range is –40°C to 85°C. - What type of package does the LTC2947IUFE#TRPBF come in?
The LTC2947IUFE#TRPBF comes in a 32-Lead (4mm × 6mm) Plastic QFN package. - Does the LTC2947IUFE#TRPBF have a shutdown mode?
Yes, it has a shutdown mode with IQ < 10μA. - What is the resolution of the power measurement in the LTC2947IUFE#TRPBF?
The power measurement resolution is 18 bits. - Can the LTC2947IUFE#TRPBF store maximum and minimum values of measured quantities?
Yes, it can store maximum and minimum values of measured quantities. - What is the full-scale power measurement capability of the LTC2947IUFE#TRPBF?
The full-scale power measurement capability is 450 W.
