Sanken Electric Co SI-7200M Datasheet
Bipolar Driver IC
SI-7200M
■ Ratings
(Ta = 25°C)
Absolute Supply voltage Output Junction Operating Storage
maximum current temperature ambient temperature
rating (V) (A) (°C) temperature (°C) (°C)
Type No. VCC1 VCC2 Io Tj Top Tstg
SI-7200M 50 10 1.2 +125 –20 to +80 –30 to +100
■ Characteristics
Electrical Supply voltage *Output current Excitation signal Power down Trigger pulse
charac- (V) (mA) Input current Input voltage Input Input Input Fre-
teristics Input voltage
(mA)
current voltage time quency
(V) (V) (mA) (V) (µs) (kHz)
VCC1 VCC2 IO IO1
IO2(Power down) VIL(ON) VIH(OFF) IIL
VPD-L(OFF) VPD-H(ON) IPD-L IPD-H
Vtrig Ttrig Ftrig
Type No. min typ max min typ max min max min typ max min typ max min max min max max min max min max max max min max min typ typ max max
SI-7200M 15 30 40 4.5 5 5.5
200
1000
390 440 490 235 275 315
0 0.5
VCC2 VCC2
–0.4 +2
1.6 0 0.4 2
V
CC2
1 2 3.5
V
1.0 2.0 20 25 45
CC2
*IO1 : Measurement conditions shown in the external connection diagram
IO2 : Measurement conditions shown in the external connection diagram with pin 9 open
■ Block diagram
Trigger pulse
generator
circuit
Auxiliary power
Reference
voltage
supply V
CC
2
Comparator
amplifier
Current
controller
Main power
supply VCC1
VCC2
input
current
(mA)
ICC2
Power down
Power down
Excitation signal
(4-phase)
SI-7200M
■ Equivalent circuit diagram
u
!8
R
!0
R
43
!1
o
R
44
Q
i
17
q : NC
R
13
R
39
R
9
R
R
R
R
21
40
R
33
R
25
R
35
42
–
+
I/C2/2
41
R
37
w
r
Q
1
1
D
1
Q
9
R
17
Q
13
Q
5
R
29
Q
2
R
2
D
2
R5R
6
Q
10
R
18
D5D
6
Q
14
Q
6
R
30
t e !4 !6
R14R
R
R
22
R
26
M
Excitation signal
amplifier
R
y
!2
R
15
10
R
11
Q
11
R
23
R
34
R
27
R
36
–
+
I/C2/2
R
38
!7
!5
Q
3
3
D
3
R
19
Q
15
Q
7
R
31
R7R
D7D
Q
D
4
8
R
8
Q
8
R
Counter EMF
canceller
S
■ External dimensions
!3
±0.5
4
R
4
R
16
Q
12
20
R
12
R
24
Q
16
R
28
32
±0.5
30.0
±1
8.6
65.0
±0.4
59.0
2 – 4.5
φ
Type No.
Lot No.
±0.5
21.6
..................................
1
21.6
Plastic package
P=2.54
±0.5
18Pin No.
4.5
7
3.8
(Unit: mm)
±0.3
7.8
0.5
2.5
46
SI-7200M
)
q
■ External connection diagram
VCC-1
18
7
6
12
13
9
10
SI-7200M
11
8
316
17
15
14
Excitation signal
V
CC-2
VR44kΩ
V
R
300Ω
1000pF
0.01 F
Power down
84
72
3.9kΩ
555
3
Equiva-
6
lent
5
µ
1kΩ
1kΩ
A
A
B
B
2SA561
a
IS1555
Power down pin : Active high
Excitation signal pin : Active low
■ Supply voltage and output current
2
4
5
RSBR
A
A
B
B
SA
SPM
I01, I02 measurement conditions
Pin 1 : NC
V
CC–1
= 35V
V
CC–2
= 5V
R
SA
, RSB = 2.4Ω
SPM : stepper motor
Rating : R = 6.3Ω
L = 15.5mH
at 20°C
*a : Trigger pulse for output current
control
Pulse width : 2 s
Fre
µ
uency : 20 kHz
Motor Rm = 3.5Ω/ Lm = 6.6 mH/ Trigger pulse :
1.0
0.8
0.6
0.4
φ
φ
Output current Io (A)
0.2
0
16 20 24 28 32 36 40
Supply voltage V
CC1
■ Output current and temperature
1.0
0.8
0.6
Motor Rm = 3.5Ω/ Lm = 6.6 mH/
φφ
Ttrig = 2 s
Ftrig = 20kHz
Dotted lines indicate
non-trackable 20 kHz
chopping voltage
Increase in lo due to the
effect of the trigger
pulse width
(V
µ
■ Torque and response frequency
Motor = 103G – 775 – 1240 V
2.2
1.8
When using motor wiring AC.A.
BC-B (A.B : open)
1.4
ACAABC
CC
= 30V l01 = IA
1-2 phase excitation
2 phase excitation
(Setting)
0.4
Output current Io (A)
Trigger pulse Ttrig = 2 s Ftrig = 20kHz
0.2
0 20 40 60 80 100
µ
Case (aluminum plate) temperature Tc (°C)
1.0
Pull-out torque (kg-cm)
0.6
200 500 1000 5000
BB
Response frequency f (pps)
47
Loading...