LTC6811HG-1#PBF

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LTC6811HG-1#PBF

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IC BATT MON MULTI 1-12C 48SSOP

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Attribut Wert
Package / Case Tube
Part Status Active
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

Übersicht

Description

The LTC6811HG-1#PBF is a high-voltage battery stack monitor integrated circuit (IC) manufactured by Analog Devices. It is designed for battery management systems, particularly in electric vehicles and energy storage applications. The IC can monitor up to 12 series-connected battery cells and is capable of handling voltages up to 100V. It offers precise voltage measurement for each cell, ensuring accurate state-of-charge estimation and cell balancing.
Key features include a low noise, high-speed ADC (analog-to-digital converter), a built-in communication interface that supports SPI (Serial Peripheral Interface), and robust fault diagnostics to ensure safety and reliability. The -1 suffix indicates it is a specific version for particular communication settings.
The "PBF" in its name refers to the device being lead-free and RoHS (Restriction of Hazardous Substances) compliant. The LTC6811HG-1#PBF is ideal for applications requiring precision and reliability in high-voltage environments, contributing to efficient battery management and extended battery life.

Equivalent

The LTC6811HG-1#PBF is a battery monitoring IC from Analog Devices, designed for high voltage battery stacks. Equivalent products may include:
1. LTC6804-1 - Also from Analog Devices, it is a previous generation IC with similar functionality.
2. Texas Instruments BQ76PL536A - A similar 6-cell lithium-ion battery monitor IC.
3. Maxim Integrated's MAX17823B - For battery cell monitoring in high-voltage applications.
Ensure compatibility with your specific application when choosing alternatives.

Features

The LTC6811HG-1#PBF is a highly integrated, multicell battery monitoring IC designed for electric and hybrid vehicles, as well as other energy storage systems. It can monitor up to 12 series-connected battery cells, with a total measurement error of less than 2.2 mV. Key features include:
1. Stackability: Multiple LTC6811 devices can be connected in series to monitor long strings of cells, supporting systems with over 1000V.
2. Integrated ADC: It features a 16-bit delta-sigma ADC for precise voltage measurements.
3. Temperature Sensors: It supports temperature monitoring using external thermistors.
4. Balancing Control: The IC includes passive balancing control, supporting 12 internal MOSFETs for cell balancing.
5. Communication Interface: It uses a 1 MHz serial peripheral interface (SPI) for communication and an isoSPI interface for long-distance, isolated communication.
6. Low Power Operation: Features a low standby current, conserving battery life.
7. Safety: Offers diagnostic and fault detection capabilities to enhance safety.
These features make the LTC6811 ideal for managing large-scale battery systems with precision and reliability.

Pinout

The LTC6811HG-1#PBF is a battery monitoring IC designed for use in electric vehicles and other large battery systems. It has a 48-pin count in a SSOP (Shrink Small Outline Package) form factor.
Functionally, the LTC6811-1 monitors up to 12 series-connected battery cells with an operating range of 0V to 5V, making it suitable for most battery chemistries. It features a high-accuracy cell voltage measurement capability, with a total measurement error of less than 1.2mV. Additionally, it includes a built-in precision voltage reference and a temperature sensor interface, as well as a mechanism for balancing the charge between cells. The IC communicates through a 1MHz SPI interface and supports a daisy-chainable configuration for multi-device setups, maintaining data integrity across long distances. It also includes diagnostics for fault detection to ensure system safety and reliability.

Manufacturer

The LTC6811HG-1#PBF is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits used in electronic equipment. The company provides products and solutions for a wide range of industries, such as automotive, communications, consumer electronics, industrial, and healthcare. Analog Devices is known for its expertise in converting real-world phenomena into digital data, which is crucial for the operation of a wide array of electronic devices.

Application

The LTC6811HG-1#PBF is a battery monitoring IC designed for use in multi-cell battery stack monitoring applications. Its primary application areas include electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles (PHEVs), where it monitors battery stacks for voltage, temperature, and other parameters to ensure safety and optimal operation. It is also utilized in energy storage systems, such as grid energy storage, to manage and balance large battery arrays. Additionally, it finds applications in industrial systems and backup power supplies, where precise battery management is critical for system reliability and longevity.

Package

The LTC6811HG-1#PBF is a battery monitor IC in a 44-lead plastic quad flat pack, referred to as a QFN (Quad Flat No-leads) package.

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