LTC6804 datasheet(2/90 Pages) AD

2 / 90 page

LTC6810-1/LTC6810-2

Rev. A

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TABLE OF CONTENTS

Features............................................................................................................................ 1

Applications ....................................................................................................................... 1

Typical Application ............................................................................................................... 1

Description......................................................................................................................... 1

Absolute Maximum Ratings..................................................................................................... 3

Pin Configuration ................................................................................................................. 3

Order Information................................................................................................................. 4

Electrical Characteristics........................................................................................................ 4

Typical Performance Characteristics .........................................................................................10

Pin Functions .....................................................................................................................17

Block Diagram....................................................................................................................18

Operation..........................................................................................................................20

State Diagram....................................................................................................................................................... 20

Core LTC6810 State Descriptions......................................................................................................................... 20

isoSPI State Descriptions ..................................................................................................................................... 21

Power Consumption ............................................................................................................................................. 22

VREG Configurations ............................................................................................................................................. 23

ADC Operation ...................................................................................................................................................... 24

Data Acquisition System Diagnostics ................................................................................................................... 29

Watchdog and Discharge Timer............................................................................................................................ 37

Reset Behaviors.................................................................................................................................................... 39

S Pin Pulse Width Modulation for Cell Balancing.................................................................................................. 40

Discharge Timer Monitor ...................................................................................................................................... 40

I2C/SPI Master on LTC6810 Using GPIOs............................................................................................................. 40

S Pin Muting......................................................................................................................................................... 44

Serial ID and Authentication ................................................................................................................................. 45

Serial Interface Overview...................................................................................................................................... 45

4-Wire Serial Peripheral Interface (SPI) Physical Layer........................................................................................ 45

Data Link Layer..................................................................................................................................................... 55

Network Layer....................................................................................................................................................... 55

Applications Information .......................................................................................................70

Providing DC Power.............................................................................................................................................. 70

Internal Protection and Filtering............................................................................................................................ 71

Cell Balancing ....................................................................................................................................................... 72

Discharge Control During Cell Measurements ...................................................................................................... 74

Digital Communications........................................................................................................................................ 76

Enhanced Applications.......................................................................................................................................... 86

Reading External Temperature Probes.................................................................................................................. 86

Package Description ............................................................................................................88

Revision History .................................................................................................................89

Typical Application ..............................................................................................................90

Related Parts .....................................................................................................................90

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