L9942 Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

L9942

Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile

STMicroelectronics 

Electrical specifications

L9942

3.4

Electrical characteristics

VS = 7 to 20 V, VCC = 3.0 to 5.3 V, Tj = -40 to 150 °C, IREF = -200 µA, unless otherwise

specified. The voltages are referred to GND and currents are assumed positive, when the

current flows into the pin.

3.4.1 Supply

Table 8. Supply

Symbol

Parameter

Test condition

VS DC supply current in active VS = 13.5 V, EN=VCC outputs

mode

floating

IS

VS quiescent supply current

VS = 13.5 V, TEST,

EN = 0V outputs

Tj = -40 °C

to 25 °C

floating

Tj = 125 °C

VCC = 5.0 V EN=VCC,

DI=CLK=STEP=0V

ICC

VCC DC supply current in

active mode

VCC = 5.0 V TEST;

EN = 0 V; CSN =

VCC no clocks

outputs floating

Tj = -40 °C

to 25 °C

CSN=VCC no

clocks outputs

ICC

VCC quiescent supply current floating

Tj = 125 °C

VS = 13.5 V, VCC = Tj = -40 °C

5.0 V

to 25 °C

IS + ICC

Sum quiescent supply current

TEST; EN=0 V

CSN=VCC no

clocks outputs

floating

Tj = 125 °C

tsetPOR (1) VCC on set up time

EN = 5 V, CSN=CLK=0V DO

changes from high ohmic to logic

level LOW

1. This parameter is guaranteed by design.

Min.

-

-

-

-

-

-

-

-

2

Typ.

7

3

6

1

1

2

4

8

-

Max. Unit

20 mA

10

µA

20

3

mA

3

µA

6

µA

13

µA

26

-

µs

16/40

Doc ID 11778 Rev 7

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