99

SI-7600/SI-7600D

3-Phase Stepper Motor Driver ICs (Star Connection/Delta Connection)

SI-7600/SI-7600D

sInternal Block Diagram/Diagram of Standard External Circuit

sTerminal Connection

The package shapes of SI-7600 and SI-7600D are different, however the terminal connection is the same.

(Units: mm)

Pin No.

Name

Pin No.

Name

Pin No.

Name

Pin1

PFD

Pin8

Full/Half

Pin15

OLA

Pin2

Sense

Pin9

Enable

Pin16

OHC

Pin3

Vcc

Pin10

Mode

Pin17

OHB

Pin4

Reset

Pin11

REF

Pin18

OHA

Pin5

CW/CCW

Pin12

GND

Pin19

Pin6

Edge

Pin13

OLC

Pin20

RC

Pin7

Clock

Pin14

OLB

+

+

C7

C1

R5

R1

REF

PFD

RC

GND

R2

Rs

MOS Array

ex. SLA5017 at 4A max

SLA5059 at 4A max

SLA5060 at 6A max

SLA5061 at 10A max

(Sanken)

Rt

R4

R3

Ct

C6

Io

C5

C3

C4

OHA

OHB

OHC

OLA

U

V

W

OLB

OLC

Sense

Clock

CW/CCW

Reset

F/H

Ena

Edge

Mode

C2

Vcc

Vcc

Vcc

Reference constants

Rs:0.1 to 1

Ω

(1 to 5W)

Rt:15k to 75k

Ω

Ct:420p to 1100pF

C1:10 F/10V

C2:100 F/63V

C3 to C6:0.01 to 1 F

C7:1000pF

R1+R2

≤10kΩ

R3+R4

≤10kΩ

R5:10k

Ω

Current

Control

Pri-

Buffer

Control

Logic

1/5

Buffer

µ

µ

µ

PFD

RC

S

VBB

Vcc

OHA

Reset

OHB

CW/CCW

OHA

EDGE

OLA

CK

OLB

F/H

OLC

Ena

GND

Mode

REF

12.6

7.8

11

20

10

1

0

° to 15°

0.48

2.54

1.27 max

0.8 max

0.7

0.4

1.27

0.25

7.62

20

1

11

10

24.50

0.89

SI-7600D

SI-7600

1.30