Allegro MicroSystems, Inc.

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

High Voltage 3-Phase Motor Drivers

4

SLA6870MZ

Series

VCC 2

LIN1

VCC1

HIN 1

COM1

VB1

HO 3

HS3

LIN2

LIN3

SD 2

COM 2

LO 1

LO 2

LO 3

M

MC U

15 V

HVIC

LVIC

HIN 2

HIN 3

VB2 VB3

HO 2

HO 1

HS1

HS2

10

13

4

5

6

7

8

24

12

11

13

16

17

14

23

22

19

18

20

21

OCL

2

SD1

9

RC

15

5V

5V

RS

5V

CSD1

SLA6870MZ

Typical Application Diagram

NOTE:

The external electrolytic capacitors should be placed as close to the IC as possible, in order to avoid malfunctions

from external noise interference. Put a ceramic capacitor in parallel with the electrolytic capacitor if further

reduction of noise susceptibility is necessary.

Shows configuration for implementing current

limiter function: ¯O¯¯¯C¯¯L¯and ¯S¯¯¯D¯¯1¯ pins tied together