DIO1412

Version 1.0, Jul 2024

www.dioo.com

© 2024 DIOO MICROCIRCUITS CO., LTD.

III

Table of Contents

1. Pin Assignment and Functions ........................................................................................................................... 1

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

3. Recommended Operating Conditions .................................................................................................................3

4. ESD Ratings ........................................................................................................................................................3

5. Thermal Considerations ......................................................................................................................................4

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

7. Typical Characteristics ........................................................................................................................................ 7

8. Block Diagram .....................................................................................................................................................8

9. Function Description ........................................................................................................................................... 9

9.1. Operating modes ......................................................................................................................................9

9.2. External temperature detection ................................................................................................................9

9.3. Overtemperature alarm ............................................................................................................................ 9

9.4. Open and short faults .............................................................................................................................10

9.5. Dynamic averaging .................................................................................................................................11

9.6. Conversion rates .................................................................................................................................... 11

9.7. Reporting temperature ............................................................................................................................11

9.8. Programming SMBus (or I2C) address ...................................................................................................12

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

11. Communication Protocol and SMBus Protocol ...............................................................................................14

11.1. Communication protocol .......................................................................................................................14

11.2. SMBus protocol .................................................................................................................................... 15

12. Register Maps .................................................................................................................................................16

12.1. Temperature data register .................................................................................................................... 17

12.2. Status register ...................................................................................................................................... 18

12.3. Configuration register ...........................................................................................................................19

12.4. Conversion rate register .......................................................................................................................19

12.5. Limit register .........................................................................................................................................20

12.6. Scratchpad registers ............................................................................................................................ 21

12.7. One shot register ..................................................................................................................................21

12.8. Therm Limit registers............................................................................................................................21

12.9. External fault register ........................................................................................................................... 22

12.10. Channel mask register ....................................................................................................................... 22

12.11. Consecutive ALERT register .............................................................................................................. 23

12.12. Beta configuration registers ............................................................................................................... 24

12.13. External channel ideality factor registers ........................................................................................... 25

12.14. High Limit status register ....................................................................................................................26

12.15. Low Limit status register .................................................................................................................... 26

12.16. Therm Limit status register .................................................................................................................27

12.17. Product ID register ............................................................................................................................. 27

12.18. Manufacturer ID register .................................................................................................................... 28

12.19. Revision register .................................................................................................................................28

13. Physical Dimensions .......................................................................................................................................29

13.1. MSOP-8 ................................................................................................................................................29