Sanken Electric Co SLA4708M Datasheet

Stepper Motor Driver SLA4708M

Features

● High output breakdown voltage of 50V

● Affluent output current of 1.5A

● Built-in overcurrent, overvoltage and thermal protection circuits

● Low standby current of 50µA

Absolute Maximum Ratings

Parameter Symbol Unit ConditionsRatings
Power supply voltage
Breakdown voltage
Input voltage
Output current
Diagnostic output sink current
Diagnostic output withstand voltage
Operating temperature
Storage temperature
Power Dissipation

V

I

O, AVE

I

DIAG

I

DIAG. H

Top
Tstg

P

V

S

V

O

IN

35
50

–0.3 to +7

10
7

–40 to +85

–40 to +150

D

3.5 (Ta=25ºC)

V
V
V
A1.5

mA

V
ºC
ºC
W

Without heatsink

Electrical Characteristics

Parameter Symbol

Input voltage

(I

, I

standby)

A/A

B/B

Input current

Output saturation voltage

Output leak current
Overcurrent detection
Overvoltage detection
Saturation voltage of diagnostic

output
Standby current

V

I

IL

IH

O.STA

O.STA

O.LEAK

SD

SD

DIAG.L

STB

IL

IH

Ratings

min typ max

2.4

1.8

27.5

50

Unit Conditions

0.8

V

VV

–0.8 mA

50

µAI

1.3 VV

1.5

100

VV
µAI

AI

VV

0.3

VV

µAI

V

IN

V

IN

I

O

IO = 1.5A, Ta = 2 5 º C
V

O

I

DIAG

V

S

(VS=12V, Ta=25ºC)

= 0.4V
= 2.4V

= 1A, Ta = 2 5 º C

= 16V

= 5mA

= 12V

(Ta=25ºC)

External Dimensions

a

b

11•P2.54

12 3

4 5 6 7 8 9 10 11 12

31.0

24.4

16.4

31.5max

3.2

±0.2

±0.2

16.0

13.0

2.7

9.5min (10.4)

±0.15

±0.2

9.9

8.5max

Pin 1

±0.15

1.2

(unit: mm)

±0.2
±0.2
±0.2

0.85

1.45

±0.7

=

27.94

Ellipse 3.2

12

+0.2
–0.1

±0.15

±1.0

Standard Circuit Diagram

45

OUTAOUT

STBY

5V

2

P-GND

611

4.7kΩ

981

OUT

A

SLA4708M

OUTBV

B

DIAG

L-GND L-GND

N.C.

S

I

A/A

I

B/B

7

±0.15

• 3. 8

0.8max

Lead plate thickness

resins

+0.2
–0.1

0.55

a) Type No.
b) Lot No.

+

ZD

C

12
3

CPU

10

±0.2

4.8

ZD: VS <35V
C 100µF
(Reference)

±0.7

1.7

±0.7

2.2

Stepper
motor

42

Power Supply Current Characteristics

■

20

200

S (mA)

100

10

At standby IS (µA)

Power supply current

Thermal Protection Characteristics

■

Output voltage VO (V)

At Constant I

0

0

0

Power supply voltage VS (V)

14

Vcc(Vs) =12V

=

V 5V

ST

12

10

8

6

4

2

0

0

110 120 130 140 150 160

Junction temperature Tj (ºC)

Constant (ST = 5V)

At standby (ST = 0V)

10 20 30

T

j2

Overvoltage Protection Characteristics

■

14

=

T 25ºC

a

=

V 12V

cc

12

10

8

6

4

Output voltage VO (V)

2

0

0102030

Power supply voltage VS (V)

T

j1

Common for
all phases

35

Saturation Voltage of Output Transistor Characteristics

■

2.0
Vcc(Vs) =16V
Ta =25ºC

1.5

1.0

0.5

Saturation voltage of output transistor Vsat (V)

0

0 1.0 2.0 3.0

Common for
all phases

Output current IO (A)

43