LTC6803-1
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LTC6803-1

12 Channel Multicell Battery Monitor, Upgrade to LTC6802-1

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Part Details
Part Models 9
1ku List Price Starting From $11.78
Features
  • Measures Up to 12 Battery Cells in Series
  • Stackable Architecture
  • Supports Multiple Battery Chemistries and Supercapacitors
  • Serial Interface Daisy Chains to Adjacent Devices
  • 0.25% Maximum Total Measurement Error
  • Engineered for ISO26262 Compliant Systems
  • 13ms to Measure All Cells in a System
  • Passive Cell Balancing:
    • Integrated Cell Balancing MOSFETs
    • Ability to Drive External Balancing MOSFETs
  • On-board Temperature Sensor and Thermistor Inputs
  • 1MHz Serial Interface with Packet Error Checking
  • Safe with Random Connection of Cells
  • Built-In Self Tests
  • Delta-Sigma Converter With Built-In Noise Filter
  • Open-Wire Connection Fault Detection
  • 12μA Standby Mode Supply Current
  • High EMI Immunity
  • 44-Lead SSOP Package
Additional Details
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The LTC6803 is a 2nd generation, complete battery monitoring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Each LTC6803 can measure up to 12 series-connected battery cells or supercapacitors. Using a unique level shifting serial interface, multiple LTC6803-1/LTC6803-3 devices can be connected in series, without opto-couplers or isolators, allowing for monitoring of every cell in a long string of series-connected batteries. Each cell input has an associated MOSFET switch for discharging overcharged cells. The LTC6803-1 connects the bottom of the stack to V internally. It is pin compatible with the LTC6802-1, providing a drop-in upgrade. The LTC6803-3 separates the bottom of the stack from V, improving cell 1 measurement accuracy.

The LTC6803 provides a standby mode to reduce supply current to 12μA. Furthermore, the LTC6803 can be powered from an isolated supply, providing a technique to reduce battery stack current draw to zero.

For applications requiring individually addressable serial communications, see the LTC6803-2/LTC6803-4.


SPI Interface Isolated V– LTC6802 Pin Compatible
LTC6803-1 Daisy Chain No Yes
LTC6803-2 Addressable No Yes
LTC6803-3 Daisy Chain Yes No
LTC6803-4 Addressable Yes No

Applications

  • Electric and Hybrid Electric Vehicles
  • High Power Portable Equipment
  • Backup Battery Systems
  • Electric Bicycles, Motorcycles, Scooters


Part Models 9
1ku List Price Starting From $11.78

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Documentation

Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Oct 11, 2022

- 22_0242

Epoxy Change from Henkel 8290 to 8290A for SSOP PKG

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Nov 18, 2019

- 19_0266

Laser Top Mark for SSOP36/44/48 Packages assembled in ADPG and UTAC

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PRODUCTION

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Filter by Model

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Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0242

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Epoxy Change from Henkel 8290 to 8290A for SSOP PKG

LTC6803HG-1#3ZXTRPBF

PRODUCTION

LTC6803HG-1#3ZZPBF

PRODUCTION

LTC6803HG-1#3ZZTRPBF

PRODUCTION

LTC6803HG-1#PBF

PRODUCTION

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PRODUCTION

LTC6803IG-1#3ZZTRPBF

PRODUCTION

LTC6803IG-1#PBF

PRODUCTION

LTC6803IG-1#TRPBF

PRODUCTION

Nov 18, 2019

- 19_0266

arrow down

Laser Top Mark for SSOP36/44/48 Packages assembled in ADPG and UTAC

LTC6803HG-1#3ZXTRPBF

PRODUCTION

LTC6803HG-1#3ZZPBF

PRODUCTION

LTC6803HG-1#3ZZTRPBF

PRODUCTION

LTC6803HG-1#PBF

PRODUCTION

LTC6803HG-1#TRPBF

PRODUCTION

LTC6803IG-1#3ZZPBF

PRODUCTION

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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DC1651A

LTC6803-1 (Requires DC590B) | Demo Board

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DC1653A

LTC6803-3 (Requires DC590B) | Demo Board

Tools & Simulations

Tools & Simulations 1

Linduino

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.

Purchase Linduino

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