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SI-7321M Scheda tecnica(PDF) 3 Page - Sanken electric

Il numero della parte SI-7321M
Spiegazioni elettronici  Unipolar 2-Phase Microstepping Motor Driver IC
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Produttore elettronici  SANKEN [Sanken electric]
Homepage  http://www.sanken-ele.co.jp/en
Logo SANKEN - Sanken electric

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SANKEN ELECTRIC CO., LTD.
Unipolar 2-Phase Microstepping Motor Driver IC
SI-7321M
28210.05
ELECTRICAL CHARACTERISTICS, valid at TA = 25°C, VBB = 24 V, VDD = 5 V, unless otherwise specified
Characteristics
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Main Power Supply Current
IBB
Normal operation
15
mA
IBBS
Sleep1 or Sleep2 modes
100
μA
Logic Supply Current
IDD
––5
mA
MOSFET Breakdown Voltage
VDSS
VBB = 44 V, IDS = 1 mA
100
V
MOSFET Output On-Resistance
RDS(on)
IDS = 1.5 A
0.25
0.4
Ω
MOSFET Body Diode
Forward Voltage
VF
IF = 1.5 A
0.95
1.2
V
Maximum Clock Frequency1
fclk
Clock duty cycle = 50%, at rising clock edge
250
kHz
Logic Input Voltage
VIL
0.25 × VDD
V
VIH
0.75 × VDD
––
V
Logic Input Current
IIL
–±1–
μA
IIH
–±1–
μA
REF Input Voltage Range2
VREF
Protection functions disabled
0.04
1.5
V
Protection functions enabled
0.04
0.6
V
VREFS
Sleep1 mode, output off, sequencer enabled, IBBS
within specification
2.0
VDD
V
REF Input Current
IREF
VREF = 0 to VDD
±10
μA
SENSE Voltage
VSENSE
VREF = 0.2 V, current ratio mode F
0.2
V
SENSE Current
ISENSE
±10
μA
Overcurrent Protection
Threshold Voltage
VOCP
Motor coil short circuit, VSENSE ≥ VOCP
0.65
0.7
0.75
V
Flag Pin Logic Output Voltage
VFLAGL
IFLAGL = 1.25 mA
1.25
V
VFLAGH
IFLAGH = –1.25 mA
VDD – 1.25
V
Flag Pin Logic Output Current3
IFLAGL
1.25
mA
IFLAGH
– 1.25
mA
Mo Pin Logic Output Voltage
VMOL
IMOL = 1.25 mA
1.25
V
VMOH
IMOH = –1.25 mA
VDD – 1.25
V
Mo Pin Logic Output Current3
IMOL
1.25
mA
IMOH
– 1.25
mA
1
Operation at a step frequency greater than the specified minimum value is possible but not warranted.
2
VREF setting range affected by whether or not protection features are enabled.
3
Negative current is defined as coming out of the specified pin.


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