BQ40Z50-R2 datasheet(2/51 Pages) TI1

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bq40z50-R2

SLUSCS4 – JUNE 2017

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Table of Contents

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

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

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

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

Description (continued)......................................... 3

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

Specifications......................................................... 7

7.1

Absolute Maximum Ratings ...................................... 7

7.2

ESD Ratings.............................................................. 7

7.3

Recommended Operating Conditions ....................... 8

7.4

Thermal Information .................................................. 8

7.5

Supply Current .......................................................... 8

7.6

Power Supply Control ............................................... 9

7.7

AFE Power-On Reset ............................................... 9

7.8

AFE Watchdog Reset and Wake Timer.................... 9

7.9

Current Wake Comparator ........................................ 9

7.10

VC1, VC2, VC3, VC4, BAT, PACK ....................... 10

7.11

SMBD, SMBC ....................................................... 10

7.12

PRES, BTP_INT, DISP ........................................ 10

7.13

LEDCNTLA, LEDCNTLB, LEDCNTLC ................ 11

7.14

Coulomb Counter .................................................. 11

7.15

CC Digital Filter ..................................................... 11

7.16

ADC....................................................................... 11

7.17

ADC Digital Filter .................................................. 12

7.18

CHG, DSG FET Drive ........................................... 12

7.19

PCHG FET Drive .................................................. 13

7.20

FUSE Drive ........................................................... 13

7.21

Internal Temperature Sensor ................................ 13

7.22

TS1, TS2, TS3, TS4.............................................. 13

7.23

PTC, PTCEN......................................................... 14

7.24

Internal 1.8-V LDO ................................................ 14

7.25

High-Frequency Oscillator..................................... 14

7.26

Low-Frequency Oscillator ..................................... 14

7.27

Voltage Reference 1 ............................................. 15

7.28

Voltage Reference 2 ............................................. 15

7.29

Instruction Flash.................................................... 15

7.30

Data Flash............................................................. 15

7.31

OCD, SCC, SCD1, SCD2 Current Protection

Thresholds ............................................................... 16

7.32

Timing Requirements: OCD, SCC, SCD1, SCD2

Current Protection Timing ........................................ 16

7.33

Timing Requirements: SMBus .............................. 17

7.34

Timing Requirements: SMBus XL......................... 17

7.35

Typical Characteristics .......................................... 19

Detailed Description ............................................ 22

8.1

Overview ................................................................. 22

8.2

Functional Block Diagram ...................................... 22

8.3

Feature Description................................................. 23

8.4

Device Functional Modes........................................ 26

Applications and Implementation ...................... 27

9.1

Application Information .......................................... 27

9.2

Typical Applications ................................................ 28

Power Supply Recommendations ..................... 39

Layout................................................................... 39

11.1

Layout Guidelines ................................................. 39

11.2

Layout Example .................................................... 41

Device and Documentation Support ................. 43

12.1

Documentation Support ........................................ 43

12.2

Receiving Notification of Documentation Updates 43

12.3

Community Resources.......................................... 43

12.4

Trademarks ........................................................... 43

12.5

Electrostatic Discharge Caution ............................ 43

12.6

Glossary ................................................................ 43

Mechanical, Packaging, and Orderable

Information ........................................................... 43

4 Revision History

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

Date

Revision

Notes

June 2017

Initial Release

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