Document Number: 002-08407 Rev. *B

Page 2 of 69

MB39C031

Contents

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

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

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

1.

Application Circuit Example......................................................................................................................... 3

2.

Recommended Application Specifications .................................................................................................. 4

3.

Pin Assignment............................................................................................................................................ 6

4.

Pin Descriptions (PKG) ............................................................................................................................... 7

5.

Block Diagram ............................................................................................................................................. 9

6.

Absolute Maximum Ratings....................................................................................................................... 10

7.

Recommended Operating Conditions ........................................................................................................11

8.

Electrical Characteristics ........................................................................................................................... 12

9.

Operation Mode List .................................................................................................................................. 17

10. State Transition Diagram ........................................................................................................................... 18

11. Turning On and Off Sequence (Turning On CTL*:CTL1, CTL2, CTLMAIN=VCC Simultaneously) .......... 19

12. CTL* Turning On an

d Off Sequence 1 (VCC → CTL*: CTL1, CTL2, CTLMAIN)...................................... 20

13.

CTL* Turning On and Off Sequence 2(VCC→CTLMAIN→CTL1→CTL2)................................................ 21

14. CTL* Pin Threshold Voltage...................................................................................................................... 22

15. Protection Operation Sequence ................................................................................................................ 23

16. Operation Condition, Stop Circuit and Release Condition for Protection Circuit ...................................... 25

17. DD Soft-Start Operation ............................................................................................................................ 26

18. Discharge Operation ................................................................................................................................. 27

19. PG1/PG2/PGL PIN and ERR PIN ............................................................................................................. 29

20. I

2C Interface............................................................................................................................................... 30

21. Structure of I

2C Interface and Data ........................................................................................................... 36

22. I/O Pin Equivalent Circuit Diagram............................................................................................................ 41

23. I/O Circuit Type.......................................................................................................................................... 42

24. Typical Operation Characteristic Measurement Circuit ............................................................................. 43

25. Reference Data ......................................................................................................................................... 45

26. Usage Precaution ...................................................................................................................................... 65

27. Ordering Information ................................................................................................................................. 66

28. Preset Code (MB39C031) ......................................................................................................................... 66

29. Package Dimensions................................................................................................................................. 67

Document History ............................................................................................................................................. 68

Sales, Solutions, and Legal Information........................................................................................................... 69