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L9942 Scheda tecnica(PDF) 16 Page - STMicroelectronics

Il numero della parte L9942
Spiegazioni elettronici  Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile
PDF  40 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9942 Scheda tecnica(HTML) 16 Page - STMicroelectronics

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Electrical specifications
L9942
16/40
Doc ID 11778 Rev 7
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
Min.
Typ.
Max.
Unit
IS
VS DC supply current in active
mode
VS = 13.5 V, EN=VCC outputs
floating
-7
20
mA
VS quiescent supply current
VS = 13.5 V, TEST,
EN = 0V outputs
floating
Tj = -40 °C
to 25 °C
-3
10
µA
Tj = 125 °C
-6
20
ICC
VCC DC supply current in
active mode
VCC = 5.0 V EN=VCC,
DI=CLK=STEP=0V
-1
3
mA
VCC = 5.0 V TEST;
EN = 0 V; CSN =
VCC no clocks
outputs floating
Tj = -40 °C
to 25 °C
-1
3
µA
ICC
VCC quiescent supply current
CSN=VCC no
clocks outputs
floating
Tj = 125 °C
-2
6
µA
VS = 13.5 V, VCC =
5.0 V
Tj = -40 °C
to 25 °C
-4
13
µA
IS + ICC
Sum quiescent supply current
TEST; EN=0 V
CSN=VCC no
clocks outputs
floating
Tj = 125 °C
-8
26
tsetPOR
(1)
VCC on set up time
EN = 5 V, CSN=CLK=0V DO
changes from high ohmic to logic
level LOW
2
-
-
µs
1.
This parameter is guaranteed by design.



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