[AP1021]

015000428-E-00

2015/01

- 6 -

7. Absolute Maximum Ratings

Parameter

Symbol

min

max

Unit

Remark

Control supply voltage

VC

-0.5

5.5

V

Motor driver supply voltage

VM

-0.5

32

V

VC level terminal

(EN, CSN, SCK, SDI, SDO, OE12, OE34)

Vterm1

-0.5

VC

V

VM level terminal

(OUTnA, OUTnB)

Vterm2

-0.5

VM

V

1.8V level terminal

(LV, VREF, VIS)

Vterm3

-0.5

1.9

V

1.2V level terminal

(ISn)

Vterm4

-0.5

1.3

V

Maximum output current

IloadDC

-

1.2

A

Dual use (Note 8)

IloadPeak

-

1.7

A

Single use (Note 9)

Ipulse

-

2.8

A

Pulsed tw<1s

Power dissipation

PD

-

3.9

W

Ta=25C

Junction temperature

Tj

-

150

C

Storage temperature

Tstg

-40

150

C

Note 4. All above voltage are defined to GND.

Note 5. Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any

parameter. That is, the absolute maximum ratings are rated values at which the products on the verge of

suffering physical damages, and therefore products must be used under conditions that ensure that the

absolute maximum ratings are not exceeded.

Note 7. The each power supply of VM and VC is sequence-free.

Note 8. The AP1021 drives two stepper motors at the same time.

Note 9. For Power Dissipation, the output current rating may be limited by duty cycle, Ta, and PCB board

heat sinking design.

8. Recommended Operation Condition

Parameter

Symbol

min

typ

max

Unit

Remark

Motor driver supply voltage

VM

2.0

24.0

28.0

V

Control supply voltage

VC

3.0

5.0

5.5

V

VIS input voltage range

VIS

0.2

-

VREF

V

Io=(VIS/2.5)/RISn

Operating Temperature range

Ta

-40

-

85

C

Note 10. All above voltage are defined to GND.