Sanken Electric Co SMA7036M Datasheet

2-Phase Excitation

SMA7036M

2-Phase Stepper Motor Unipolar Driver IC

■Absolute Maximum Ratings

Parameter Symbol Ratings Units

Motor supply voltage VCC 46 V

Control supply voltage VS 46 V

FET Drain-Source voltage VDSS 100 V
TTL input voltage VIN −0.3 to +7 V
SYNC terminal voltage VSYNC −0.3 to +7 V
Reference voltage VREF −0.3 to +7 V
Sense voltage VRS −5 to +7 V

Output current IO 1.5 A

Power dissipation
Channel temperature Tch 150 °C

Storage temperature Tstg −40 to +150 °C
Ambient operating temperature Ta −20 to +85 °C

■Electrical Characteristics

Parameter Symbol

Control supply current

Control supply voltage VS 10 24 44 V

FET Drain-Source VDSS 100

voltage

FET ON voltage

FET diode forward voltage

FET drain leakage current

Active H

IN terminal

Active L

Input

DC characteristics

SYNC terminal

REF terminal

Switching time

AC characteristics

Chopping OFF time

current

Input
voltage

Input
current

Input
voltage

Input
current

Internal
resistance

PD1 4.0 (Ta=25°C) W
PD2 28 (Tc=25°C) W

Ratings

min typ max

S 10 15

I

Condition

Condition

VDS 0.6

Condition

VSD 1.1

Condition

IDSS 250

Condition

VIH 2

Condition

VIL 0.8

Condition

VIH 2

Condition

VIL 0.8

Condition

II ±1

Condition

VSYNCH 4.0

Condition

VSYNCL 0.8

Condition

ISYNCH 0.1

Condition

ISYNCL −0.1

Condition

VREF 0 2.0

Condition

VREF 4.0 5.5

Condition

IREF ±1

Condition

RREF 40

Condition

Ton 1.5

Condition

Tr 0.5

Condition

T

stg 0.9

Condition

Tf 0.1

Condition

TOFF 12

Condition

Resistance between GND and REF terminal at synchronous trigger

Synchronous chopping mode

Asynchronous chopping mode

VS=44V

VS=44V, IDSS=250 µA

ID=1A, VS=10V

ISD=1A

VDSS=100V, VS=44V

ID=1A

VDSS=100V

VDSS=100V

ID=1A

VS=44V, VI=0 or 5V

VS=44V, VYS=5V

VS=44V, VYS=0V

Reference voltage input

Output FET OFF

No synchronous trigger

VS=24V, ID=1A

VS=24V, ID=1A

VS=24V, ID=1A

VS=24V, ID=1A

VS=24V

Units

mA

V

V

V

µ

V

V

µ

V

mA

V

µ

Ω

µ

µ

A

A

A

s

s

12

SMA7036M

■Internal Block Diagram

SMA7036M2-Phase Stepper Motor Unipolar Driver IC (2-Phase Excitation)

61

5 8 14 10 15

IN A

Vs

IN B

Reg. Reg.

µ

GND A

Chopping

blanking timer

(5 s typ)

µ

+

−

Oscillator Oscillator

MOSFET

gate drive

circuit

Synchronous

chopping

circuit

Rs A

7 2 4 3 13 12 11 9

Chopping

OFF timer

(12 s typ)

SYNC A

Chopping

blanking timer

(5 s typ)

µ

+

−

REF B

REF A

Chopping

OFF timer

(12 s typ)

µ

MOSFET

gate drive

circuit

Synchronous

chopping

circuit

GND B

SYNC B

Rs B

■Diagram of Standard External Circuit (Recommended Circuit Constants)

1, 6, 10, 15pin

Description of pins

Active H
1pin
6pin

10pin
15pin

Excitation input

OUT A
OUT A
OUT B
OUT B

Active L

OUT A
OUT A
OUT B
OUT B

Vcc (46V max)

Vb (5V)

PchMOS

Inv

Disable (High Active)

+

Excitation signal time chart

8

V

2

Sync

11

Sync

r1

Rs

7

r2

Rs Rs

1 6 10 15

S

A

SMA7036M

B

A

RefARef

Rs

B

B

313 1294

GAG

clock 0 1 2 3 0 1

5

IN

A

14

IN

B

IN

IN

INA HHLLHH

A

B

B LHHLLH

IN

1 : 8kΩ

r

2 : 2kΩ (VR)

r

S

(1 to 2W)

R
PchMOS : HN1J02FU (Toshiba)

B

Inv : 7404

2-phase excitation

: 1Ω typ

SMA7036M

13

SMA7036M2-Phase Stepper Motor Unipolar Driver IC (2-Phase Excitation)

■External Dimensions

±0.2

31

x

±0.2

8.5ma

10.2

P2.03

123·······15

0.65

1.16

Lot No.

Part No.

+0.2
–0.1
+0.2
–0.1

±0.1

×14=28.42

+0.2

31.3

Forming No. No.1054

(Unit: mm)

Epoxy resin package

±0.2

4

±0.2

2.5

30°

1.45

0.55
4

±0.15

0.5

±

6.7

(9.7)

(3)

+0.2

±0.7

–0.1

P2.03

±0.1

×14=28.42

0.62

1.16

±0.1
±0.15

1.2

±0.1

(5.9)

(7.5)

±0.6

3

(4.6)

±0.6

+0.2

–0.1

1.6

0.55

123·······15

Forming No. No.1055

14

SMA7036M