DIO221X

Version 1.1, Feb 2024

www.dioo.com

© 2024 DIOO MICROCIRCUITS CO., LTD.

III

Table of Contents

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

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

3. Recommended Operating Conditions .........................................................................................................2

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

5. Thermal Considerations ..............................................................................................................................3

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

6.1. Current-shunt monitor ...................................................................................................................... 4

6.2. Comparator .......................................................................................................................................5

6.3. General .............................................................................................................................................6

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

8. Function Description ................................................................................................................................... 8

8.1. Comparator hysteresis ..................................................................................................................... 8

8.2. Comparator .......................................................................................................................................8

8.3. Device functional mode .................................................................................................................... 8

9. Application Information ................................................................................................................................9

9.1. Basic connections .............................................................................................................................9

9.2. Choosing shunt resistor ....................................................................................................................9

9.3. Input filtering ...................................................................................................................................10

10. Layout ......................................................................................................................................................10

11. Physical Dimensions ............................................................................................................................... 11

11.1. SOIC-8 ........................................................................................................................................ 11

11.2. MSOP-8 ........................................................................................................................................ 12

List of Figures

Figure 1. MSOP-8/SOIC-8 (Top view) .............................................................................................................1

Figure 2. Gain vs. VCM.....................................................................................................................................7

Figure 3. Gain vs. VSENSE................................................................................................................................ 7

Figure 4. IQ vs. VCM..........................................................................................................................................7

Figure 5. CMP-VTH vs. Temperature ............................................................................................................... 7

Figure 6. Comparator hysteresis .....................................................................................................................8

Figure 7. Comparator latching capability ........................................................................................................ 8

Figure 8. DIO221X basic connections ............................................................................................................ 9

Figure 9. Input filter ....................................................................................................................................... 10