STK672-210-E Ver la hoja de datos (PDF) - ON Semiconductor
Número de pieza
componentes Descripción
Fabricante
STK672-210-E
ON Semiconductor
STK672-210-E Datasheet PDF : 10 Pages
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STK672-210-E
IOH - Tc
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
20
40
60
80
100
Substrate temperature, Tc - °C
ΔTc - CLK
80
70 IOH=1.3A 2ex
120
ITF02295
60
50
40
IOH=1A 2ex
IOH=1A 1-2ex
30
20 Motor voltage: 24V
Vertical, independent,
10
heat sink without fins
Natural convection
Motor: R=3.3Ω, L=3mH
0
100
23
5 7 1000
23
Input frequency, CLK - Hz
5 7 10000
ITF02297
ΔTc - Pd
90
80
70
60
50
40
30
20
10
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Hybrid IC internal power dissipation, Pd - W
ITF02296
IOH - Tc
1.8
1.6
Motor running
1.4
Motor hold state current
1.2
1.0
0.8
0.6
0.4
0.2 Conditions: Motor voltage=24V
Motor: R=0.4Ω, L=1.2mH
0
0 10 20 30 40 50 60 70 80 90
Substrate temperature, Tc - °C
100 110
ITF02298
STK672-210-E Allowable Avalanche Energy Value
[Allowable Range in Avalanche Mode]
When driving a 2-phase stepping motor with constant current chopping using an STK672-2** Series hybrid IC,
the waveforms shown in Figure 1 below result for the output current, ID, and voltage, VDS.
VDSS: Voltage during avalanche operations
VDS
IOH: Motor current peak value
IAVL: Current during avalanche operations
ID
tAVL: Time of avalanche operations
ITF02557
Figure 1 Output Current, ID, and Voltage, VDS, Waveforms 1 of the STK672-2** Series when
Driving a 2-Phase Stepping Motor with Constant Current Chopping
No. 7464-8/10
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