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STK672-050-E Datasheet(PDF) 2 Page - Sanyo Semicon Device

Part No. STK672-050-E
Description  Stepping Motor Driver (sine wave drive) Output Current 3.0A (no heat sink*)
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

STK672-050-E Datasheet(HTML) 2 Page - Sanyo Semicon Device

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STK672-050-E
No.5228-2/19
Features
• Can implement stepping motor drive systems simply by providing a DC power supply and a clock pulse generator.
<Control Block Features>
• One of five drive types can be selected with the drive mode settings (M1, M2, and M3)
1) 2 phase excitation drive
2) 1-2 phase excitation drive
3) W1-2 phase excitation drive
4) 2W1-2 phase excitation drive
5) 4W1-2 phase excitation drive
• Provides four freely selectable modes for the vector locus during microstepping drive: circular mode, one inside mode,
and two outside modes.
• Phase retention even if excitation is switched.
• The excitation phase state can be verified in real time using the MO1, MO2, and MOI signal output pins.
• The CLK input counter block can be selected to be one of the following by the high/low setting of the M3 input pin.
1) Rising edge only
2) Both rising and falling edges
• The CLK and RETURN input pins include built-in malfunction prevention circuits for external pulse noise.
• ENABLE and RESET pins provided. These are Schmitt trigger inputs with built-in 20kΩ (typical) pull-up resistors.
• No noise generation due to the difference between the A and B phase time constants during motor hold since external
excitation is used.
• Microstepping operation supported even for small motor currents, since the reference voltage Vref can be set to any
value between 0V and 1/2VCC2.
<Driver Block>
• External excitation PWM drive allows a wide operating supply voltage range (VCC1 = 10 to 45V) to be used.
• Current detection resistor (0.2Ω) built-in the hybrid IC itself.
• Power MOSFETs adopted for low drive loss.
• Provides a motor output drive current of IOH = 3.0A.
Specifications
Absolute Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage 1
VCC1 max
No signal
52
V
Maximum supply voltage 2
VCC2 max
No signal
-0.3 to +7.0
V
Input voltage
VIN max
Logic input pins
-0.3 to +7.0
V
Output current
IOH max
0.5s, 1 pulse, when VCC1 applied.
Load: R = 5
Ω, L = 10mH for each phase.
4.0
A
Repeated avalanche capacity
Ear max
38
mJ
Allowable power dissipation
Pd max
θc-a = 0
25
W
Operating substrate temperature
Tc max
105
°C
Junction temperature
Tj max
150
°C
Storage temperature
Tstg
-40 to +125
°C
Allowable Operating Ranges at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage 1
VCC1
With signals applied
10 to 45
V
Supply voltage 2
VCC2
With signals applied
5 ± 5%
V
Input voltage
VIH
0 to VCC2V
Phase driver withstand voltage
VDSS
Tr1, 2, 3, and 4 (the A, A, B, and B outputs)
100 (min)
V
Output current
IOH
Duty 50%
3.0
A


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