SCM1271MF datasheet(2/53 Pages) SANKEN

2 / 53 page

SCM1270MF Series

SCM1270MF-DSE Rev.1.4

SANKEN ELECTRIC CO., LTD.

Aug. 9, 2018

http://www.sanken-ele.co.jp/en

Contents

Description ------------------------------------------------------------------------------------------------------ 1

Contents --------------------------------------------------------------------------------------------------------- 2

1. Absolute Maximum Ratings----------------------------------------------------------------------------- 4

2. Recommended Operating Conditions ----------------------------------------------------------------- 5

3. Electrical Characteristics -------------------------------------------------------------------------------- 6

3.1.

Characteristics of Control Parts------------------------------------------------------------------ 6

3.2.

Bootstrap Diode Characteristics ----------------------------------------------------------------- 7

3.3.

Thermal Resistance Characteristics ------------------------------------------------------------- 7

3.4.

Transistor Characteristics ------------------------------------------------------------------------- 8

3.4.1.

SCM1271MF ----------------------------------------------------------------------------------- 8

3.4.2.

SCM1272MF ----------------------------------------------------------------------------------- 9

3.4.3.

SCM1274MF ----------------------------------------------------------------------------------- 9

3.4.4.

SCM1276MF --------------------------------------------------------------------------------- 10

4. Mechanical Characteristics --------------------------------------------------------------------------- 11

5. Insulation Distance-------------------------------------------------------------------------------------- 11

6. Truth Table----------------------------------------------------------------------------------------------- 12

7. Block Diagram ------------------------------------------------------------------------------------------- 13

8. Pin Configuration Definitions------------------------------------------------------------------------- 14

9. Typical Applications ------------------------------------------------------------------------------------ 15

10. Physical Dimensions ------------------------------------------------------------------------------------ 17

10.1. Leadform 2552 ------------------------------------------------------------------------------------- 17

10.2. Leadform 2557 (Long Lead Type) ------------------------------------------------------------- 18

10.3. Reference PCB Hole Sizes ----------------------------------------------------------------------- 19

11. Marking Diagram --------------------------------------------------------------------------------------- 19

12. Functional Descriptions -------------------------------------------------------------------------------- 20

12.1. Turning On and Off the IC---------------------------------------------------------------------- 20

12.2. Pin Descriptions ----------------------------------------------------------------------------------- 20

12.2.1. U, V, and W----------------------------------------------------------------------------------- 20

12.2.2. VB1, VB2, and VB3 ------------------------------------------------------------------------- 20

12.2.3. HS1, HS2, and HS3 ------------------------------------------------------------------------- 21

12.2.4. VCC1, VCC2, and VCC3 ------------------------------------------------------------------ 21

12.2.5. COM1, COM2, and COM3---------------------------------------------------------------- 21

12.2.6. HIN1, HIN2, and HIN3; LIN1, LIN2, and LIN3 -------------------------------------- 21

12.2.7. VBB -------------------------------------------------------------------------------------------- 22

12.2.8. LS1, LS2, and LS3 -------------------------------------------------------------------------- 22

12.2.9. OCP1 and OCP3----------------------------------------------------------------------------- 23

12.2.10. FO1 (U-phase) and FO3 (W-phase)------------------------------------------------------ 23

12.2.11. SD (V-phase) --------------------------------------------------------------------------------- 24

12.2.12. VT ---------------------------------------------------------------------------------------------- 24

12.3. Temperature Sensing Function----------------------------------------------------------------- 24

12.4. Protection Functions------------------------------------------------------------------------------ 25

12.4.1. Fault Signal Output ------------------------------------------------------------------------- 25

12.4.2. Shutdown Signal Input --------------------------------------------------------------------- 25

12.4.3. Undervoltage Lockout for Power Supply (UVLO) ----------------------------------- 25

12.4.4. Overcurrent Protection (OCP) ----------------------------------------------------------- 26

12.4.5. Simultaneous On-state Prevention ------------------------------------------------------- 28

13. Design Notes ---------------------------------------------------------------------------------------------- 29

13.1. PCB Pattern Layout ------------------------------------------------------------------------------ 29

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