Overview
The LTC6811HG-1#3ZZTRPBF, produced by Analog Devices Inc., is a multicell battery stack monitor designed to measure up to 12 series-connected battery cells. This device is particularly suited for various battery chemistries due to its cell measurement range of 0V to 5V. The LTC6811HG-1 offers high accuracy with a total measurement error of less than 1.2mV, making it an ideal choice for precise battery monitoring in high-voltage battery strings.
Key Specifications
| Parameter | Specification |
|---|---|
| Number of Cells Monitored | Up to 12 series-connected cells |
| Cell Measurement Range | 0V to 5V |
| Total Measurement Error | Less than 1.2mV |
| Data Acquisition Time | 290µs (all 12 cells) |
| Operating Temperature Range | –40°C to 125°C (H-grade) |
| VREG Supply Voltage | 4.5V to 5.5V |
| Communication Interface | isoSPI |
| Package Type | 48-Lead Plastic SSOP |
Key Features
- High-speed, RF-immune isoSPI interface for long-distance communications.
- Ability to measure all 12 cells in 290µs, with lower data acquisition rates available for noise reduction.
- Multiple LTC6811 devices can be connected in series for monitoring long, high-voltage battery strings.
- Supports a wide range of battery chemistries due to its 0V to 5V cell measurement range.
- Automotive-grade version available, meeting AEC-Q100 standards.
Applications
- Battery management systems (BMS) in electric vehicles and hybrid electric vehicles.
- Energy storage systems, including grid-scale batteries and renewable energy systems.
- Industrial battery applications, such as forklifts and material handling equipment.
- Aerospace and defense battery monitoring systems.
- High-performance battery packs in consumer electronics and medical devices.
Q & A
- What is the maximum number of battery cells the LTC6811HG-1 can monitor?
The LTC6811HG-1 can monitor up to 12 series-connected battery cells.
- What is the total measurement error of the LTC6811HG-1?
The total measurement error is less than 1.2mV.
- What is the cell measurement range of the LTC6811HG-1?
The cell measurement range is from 0V to 5V.
- How long does it take to measure all 12 cells?
All 12 cells can be measured in 290µs.
- What communication interface does the LTC6811HG-1 use?
The LTC6811HG-1 uses an isoSPI interface.
- What is the operating temperature range of the LTC6811HG-1?
The operating temperature range is –40°C to 125°C for the H-grade version.
- Is the LTC6811HG-1 suitable for automotive applications?
- What package type is the LTC6811HG-1 available in?
The LTC6811HG-1 is available in a 48-Lead Plastic SSOP package.
- Can multiple LTC6811 devices be connected in series?
- What is the VREG supply voltage range for the LTC6811HG-1?
The VREG supply voltage range is from 4.5V to 5.5V.
