LTC6804-1
NOT RECOMMENDED FOR NEW DESIGNS12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 3
- Part Models
- 7
- 1ku List Price
- Starting From $14.72
Overview
- Measures Up to 12 Battery Cells in Series
- Stackable Architecture Supports 100s of Cells
- Built-In isoSPI™ Interface:
- 1Mbps Isolated Serial Communications
- Uses a Single Twisted Pair, Up to 100 Meters
- Low EMI Susceptibility and Emissions
- 1.2mV Maximum Total Measurement Error
- 290μs to Measure All Cells in a System
- Synchronized Voltage and Current Measurement
- 16-Bit Delta-Sigma ADC with Frequency Programmable 3rd Order Noise Filter
- Engineered for ISO26262 Compliant Systems
- Passive Cell Balancing with Programmable Timer
- 5 General Purpose Digital I/O or Analog Inputs:
- Temperature or other Sensor Inputs
- Configurable as an I2C or SPI Master
- 4μA Sleep Mode Supply Current
- 48-Lead SSOP Package
The LTC6804 is a 3rd generation multicell battery stack monitor that measures up to 12 series connected battery cells with a total measurement error of less than 1.2mV. The cell measurement range of 0V to 5V makes the LTC6804 suitable for most battery chemistries. All 12 cell voltages can be captured in 290μs, and lower data acquisition rates can be selected for high noise reduction.
Multiple LTC6804 devices can be connected in series, permitting simultaneous cell monitoring of long, high voltage battery strings. Each LTC6804 has an isoSPI interface for high speed, RF-immune, local area communications. Using the LTC6804-1, multiple devices are connected in a daisy-chain with one host processor connection for all devices. Using the LTC6804-2, multiple devices are connected in parallel to the host processor, with each device individually addressed.
Additional features include passive balancing for each cell, an onboard 5V regulator, and 5 general purpose I/O lines. In sleep mode, current consumption is reduced to 4μA. The LTC6804 can be powered directly from the battery, or from an isolated supply.
Applications
- Electric and Hybrid Electric Vehicles
- Backup Battery Systems
- Grid Energy Storage
- High Power Portable Equipment
Documentation
Data Sheet 1
User Guide 4
Technical Articles 4
Video 2
Product Selector Card 1
Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC6804HG-1#3ZZPBF | 48-Lead SSOP | ||
| LTC6804HG-1#PBF | 48-Lead SSOP | ||
| LTC6804HG-1#TRPBF | 48-Lead SSOP | ||
| LTC6804IG-1#3ZZPBF | 48-Lead SSOP | ||
| LTC6804IG-1#3ZZTRPBF | 48-Lead SSOP | ||
| LTC6804IG-1#PBF | 48-Lead SSOP | ||
| LTC6804IG-1#TRPBF | 48-Lead SSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jul 31, 2020 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan) |
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| LTC6804HG-1#3ZZPBF | ||
| LTC6804HG-1#PBF | ||
| LTC6804HG-1#TRPBF | PRODUCTION | |
| LTC6804IG-1#3ZZPBF | ||
| LTC6804IG-1#3ZZTRPBF | ||
| LTC6804IG-1#PBF | ||
| LTC6804IG-1#TRPBF | ||
|
Nov 18, 2019 - 19_0266 Laser Top Mark for SSOP36/44/48 Packages assembled in ADPG and UTAC |
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| LTC6804HG-1#3ZZPBF | ||
| LTC6804HG-1#PBF | ||
| LTC6804HG-1#TRPBF | PRODUCTION | |
| LTC6804IG-1#3ZZPBF | ||
| LTC6804IG-1#3ZZTRPBF | ||
| LTC6804IG-1#PBF | ||
| LTC6804IG-1#TRPBF | ||
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Battery Monitors & Fuel Gauges 2 | ||
| LT8584 | RECOMMENDED FOR NEW DESIGNS | 2.5A Monolithic Active Cell Balancer with Telemetry Interface |
| LTC3300-1 | RECOMMENDED FOR NEW DESIGNS | High Efficiency Bidirectional Multicell Battery Balancer |
| Interface Transceivers 1 | ||
| LTC6820 | PRODUCTION | isoSPI Isolated Communications Interface |
| MOSFET & Gate Drivers 1 | ||
| LTM9100 | NOT RECOMMENDED FOR NEW DESIGNS | Anyside™ High Voltage Isolated Switch Controller with I2C Command and Telemetry |
| Temperature Sensors 1 | ||
| LTC2983 | RECOMMENDED FOR NEW DESIGNS | Multi-Sensor High Accuracy Digital Temperature Measurement System |
| Parts | Product Life Cycle | Description |
|---|---|---|
| LTC6811-1 | PRODUCTION | 12 Channel Multicell Battery Monitor with Daisy Chain Interface, Generation 4 |
Tools & Simulations
Linduino 6
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
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