DS17H732S Datasheet, PDF (16/20 Pages) Sanyo Semicon Device – 3-PHASE STEPPING SYSTEMS

3-phase STEPPING SYSTEMS
HIC for stepping motor Specifications
˙ Electrical characteristicsʢTc=25˃, VCC1=24 V, VCC2=5 Vʣ
Item
VCC2 source current
Effective output current
FET diode forward voltage
Output saturation voltage
Output leak current
lHz level input voltage
lLz level input voltage
Input current
Vref input voltage
Vref input current
lHz level MOI output voltage
lLz level MOI output voltage
PWM frequency
Symbol
ICCO
Ioe
Vdf
Vsat
IOL
VIH
VIL
IIL
VrH
Ir
VOH
VOL
FC
Condition
Enable = lLz
Each phase R/L = 2 Њ /6mHɹ2W2-3phase energization
If = 1AʢRL=23 Њʣ
RL = 23 Њ
RL = 23 Њ
Pins 11 to 18
Pins 11 to 18
Pins 11 to 18 = GND levelɹPull-up resistance : 20k Њ
Pin 10ɹ
Pin 10 = 2.5 VɹInternal resistance : 4k Њ
Pins 20-19 = 820k Њ
Pins 21-20 = 1.6k Њ
ʵ
Rating
MIN.
ʵ
0.92
ʵ
ʵ
ʵ
4.0
ʵ
115
0
440
2.5
ʵ
23
Standard
6.1
1.03
1.0
0.30
ʵ
ʵ
ʵ
250
ʵ
625
ʵ
ʵ
31
MAX.
12
1.14
1.6
0.40
0.1
ʵ
1.0
550
VCC2 / 2
810
ʵ
0.4
39
Unit
mA
Arms
V
V
mA
V
V
ЖA
V
ЖA
V
V
kHz
˙ Function of each terminal
Function of each terminal
Vref
Clock
Hold
CW/CCW
Enable
Reset
MOI
Function
Motor current setting input
Pulse input for motor drive
Pause input
Motor rotational direction setting input
Power off input
System reset
Rotation monitor output
Input condition for operation
ʵ
Mode C = lHz : Rising edge operationɹMode C = lLz : Rising edge and falling edge operation
Hold = lLz level
lHz level = CW rotationɹlLz level = CCW rotation
Enable = lLz level
Reset = lLz level
H level output once for each phase current period
˙ Energization mode table
Input
Mode A
L
L
H
H
H
Mode B
L
H
L
H
H
Mode C
H
H
H
H
L
Condition energization mode 1 step angleʢdegreeʣ Basic step division
2EX
2-3EX
W2-3EX
2W2-3EX
4W2-3EX
1.2
1
0.6
2
0.3
4
0.15
8
0.075
16
• When Mode C = lLz, 1 step operation is performed for each rising edge and falling edge of the
Clock pulse. If the duty ratio of the drive pulse moves out of the adjustment significantly by 50
%, operation becomes unstable.
˙ Example of Application Circuit
Recommended circuit part constants
C1
470 Ж F
C2
6.8 Ж F
C3
0.1 Ж F
C4
10 Ж F
˔ For the R1 and R2 constants, determine the Vref voltage according to the following equation.
Vreʢf Vʣ= motor current adjustment valueʢA/phaseʣx 0.41
Notice that 100Њ is recommended for R2 due to the configuration of the internal circuit of the
PMM3501.
˔ Place the GND side of the source by-pass capacitor of VCCʢ1 C1ʣas close to pins 27 and 28 as
possible to reduce noise.
˔ SetlRESETzto High 10Жsecs afterl+5 Vzrises abovel+4.5 Vz, as shown in Fig 1. When turning
on the power withlENABLEzset to Low, setlRESETzto High afterl+24 Vzrises completely.
15