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bq78350-R1

SLUSCD0B – AUGUST 2015 – REVISED NOVEMBER 2018

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Product Folder Links: bq78350-R1

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Copyright © 2015–2018, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

Revision History..................................................... 2

5

Description (continued)......................................... 2

6

Pin Configuration and Functions ......................... 3

7

Specifications......................................................... 4

7.1

Absolute Maximum Ratings ...................................... 4

7.2

ESD Ratings.............................................................. 4

7.3

Recommended Operating Conditions ....................... 4

7.4

Thermal Information .................................................. 5

7.5

Electrical Characteristics: Supply Current................. 5

7.6

Electrical Characteristics: I/O .................................... 5

7.7

Electrical Characteristics: ADC ................................. 5

7.8

Electrical Characteristics: Power-On Reset .............. 6

7.9

Electrical Characteristics: Oscillator.......................... 6

7.10

Electrical Characteristics: Data Flash Memory ....... 6

7.11

Electrical Characteristics: Register Backup ............ 7

7.12

SMBus Timing Specifications ................................. 7

7.13

Typical Characteristics ........................................... 8

8

Detailed Description .............................................. 9

8.1

Overview ................................................................... 9

8.2

Functional Block Diagram ....................................... 10

8.3

Feature Description................................................. 10

8.4

Device Functional Modes........................................ 12

8.5

Programming........................................................... 12

9

Application and Implementation ........................ 13

9.1

Application Information............................................ 13

9.2

Typical Applications ................................................ 13

10

Power Supply Recommendations ..................... 21

11

Layout................................................................... 21

11.1

Layout Guidelines ................................................. 21

11.2

Layout Example .................................................... 22

12

Device and Documentation Support ................. 23

12.1

Related Documentation......................................... 23

12.2

Community Resources.......................................... 23

12.3

Trademarks ........................................................... 23

12.4

Electrostatic Discharge Caution ............................ 23

12.5

Glossary ................................................................ 23

13

Mechanical, Packaging, and Orderable

Information ........................................................... 23

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision A (October 2017) to Revision B

Page

•

Changed Gas Gauging ......................................................................................................................................................... 18

•

Changed Power Supply Recommendations......................................................................................................................... 21

Changes from Original (August 2015) to Revision A

Page

•

Changed Applications ............................................................................................................................................................ 1

5 Description (continued)

The bq78350-R1 device offers optional LED or LCD display configurations for capacity reporting. It also makes

data available over its SMBus 1.1 interface. Battery history and diagnostic data is also kept within the device in

non-volatile memory and is available over the same interface.