LTC6811HG-1#PBF
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Analog Devices Inc. LTC6811HG-1#PBF

Manufacturer No:
LTC6811HG-1#PBF
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC BATT MON MULTI 1-12C 48SSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The LTC6811HG-1#PBF, produced by Analog Devices Inc., is a multicell battery stack monitor designed to measure up to 12 series-connected battery cells with high precision. This IC is particularly suited for automotive and industrial applications due to its robust specifications and features. It offers a total measurement error of less than 1.2mV, making it highly reliable for battery monitoring systems. The device can be powered directly from the battery stack or from an isolated supply, enhancing its versatility in various battery management systems.

Key Specifications

Parameter Value Notes
Number of Cells Monitored Up to 12
Measurement Error < 1.2mV
Cell Measurement Range 0V to 5V Suitable for most battery chemistries
Data Acquisition Time 290µs (all 12 cells) Lower rates available for noise reduction
Operating Temperature Range -40°C to 125°C Automotive grade (H version)
Supply Voltage (V+) 4.5V to 5.5V
Package Type 48-Lead Plastic SSOP
Interface isoSPI High-speed, RF-immune, long-distance communications
Power Consumption (Sleep Mode) 4µA

Key Features

  • High Precision Measurement: Measures up to 12 series-connected battery cells with a total measurement error of less than 1.2mV.
  • Flexible Powering: Can be powered directly from the battery stack or from an isolated supply.
  • isoSPI Interface: Supports high-speed, RF-immune, long-distance communications. Multiple devices can be connected in series or parallel to the host processor.
  • Passive Balancing: Includes individual PWM duty cycle control for each cell.
  • Onboard 5V Regulator: Provides a stable voltage supply.
  • General Purpose I/O Lines: Five available for various applications.
  • Sleep Mode: Reduces current consumption to 4µA.

Applications

  • Automotive Battery Management Systems: Suitable for monitoring high-voltage battery stacks in electric and hybrid vehicles.
  • Industrial Battery Systems: Used in industrial battery management for high reliability and precision.
  • Energy Storage Systems: Applicable in various energy storage applications requiring precise cell monitoring.

Q & A

  1. What is the maximum number of battery cells the LTC6811HG-1#PBF can monitor?

    The LTC6811HG-1#PBF can monitor up to 12 series-connected battery cells.

  2. What is the measurement error of the LTC6811HG-1#PBF?

    The measurement error is less than 1.2mV.

  3. What is the cell measurement range of the LTC6811HG-1#PBF?

    The cell measurement range is from 0V to 5V, suitable for most battery chemistries.

  4. How long does it take to measure all 12 cells?

    All 12 cells can be measured in 290µs, with lower data acquisition rates available for noise reduction.

  5. What is the operating temperature range of the LTC6811HG-1#PBF?

    The operating temperature range is -40°C to 125°C for the automotive grade (H version).

  6. What interface does the LTC6811HG-1#PBF use for communication?

    The LTC6811HG-1#PBF uses an isoSPI interface for high-speed, RF-immune, long-distance communications.

  7. Can the LTC6811HG-1#PBF be powered directly from the battery stack?

    Yes, the LTC6811HG-1#PBF can be powered directly from the battery stack or from an isolated supply.

  8. Does the LTC6811HG-1#PBF support passive balancing?

    Yes, it includes individual PWM duty cycle control for each cell.

  9. What is the power consumption in sleep mode?

    The power consumption in sleep mode is reduced to 4µA.

  10. What package type is the LTC6811HG-1#PBF available in?

    The LTC6811HG-1#PBF is available in a 48-Lead Plastic SSOP package.

Product Attributes

Function:Battery Monitor
Battery Chemistry:Multi-Chemistry
Number of Cells:1 ~ 12
Fault Protection:Over Temperature
Interface:SPI
Operating Temperature:-40°C ~ 125°C (TA)
Mounting Type:Surface Mount
Package / Case:48-FSOP (0.209", 5.30mm Width)
Supplier Device Package:48-SSOP
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Similar Products

Part Number LTC6811HG-1#PBF LTC6811HG-2#PBF LTC6811IG-1#PBF
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active
Function Battery Monitor Battery Monitor Battery Monitor
Battery Chemistry Multi-Chemistry Multi-Chemistry Multi-Chemistry
Number of Cells 1 ~ 12 1 ~ 12 1 ~ 12
Fault Protection Over Temperature Over Temperature Over Temperature
Interface SPI SPI SPI
Operating Temperature -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 48-FSOP (0.209", 5.30mm Width) 48-FSOP (0.209", 5.30mm Width) 48-FSOP (0.209", 5.30mm Width)
Supplier Device Package 48-SSOP 48-SSOP 48-SSOP

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