Sanken Electric Co SI-7300A Datasheet
Unipolar Driver ICs
SI-7300A and SI-7330A
■ 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-7300A 48 8 1.7 +125 –20 to +80 –30 to +100
SI-7330A 42 8 3.2 +125 –20 to +80 –30 to +100
■ Characteristics
Electrical Supply voltage Output current VCC2 input Oscillation External Input excitation signal (active high)
charac- current frequency zener diode Input voltage (V) High level input current (mA)
teristics breakdown Low High Io= Io= Io= Io=
voltage level level 0.5A/ø 1.0A/ø 1.5A/ø 3.0A/ø
(V) (mA/ø) (mA) (kHz) (V) (OFF) (ON)
VCC1 VCC2 IO IOM*lCC2 FVZ VIL VIH lIH lIH lIH lIH
Type No. min typ
SI-7300A 15 30 42 4.5 5 5.5 200
SI-7330A 15 30 35 4.5 5 5.5 200
max
min typ
max
min
max
min typ
max
max min typ max min max max typ min
1500
535 580 625 45 19 21 25
3000
535 580 625 45 19 21 25 V
max
min
CC1
V
70 0.8 2.8 2.2
+5
CC1
43 0.3 1.8 5 100 15 100 40 100
10.0
3.0
* Measurement conditions are as shown in the external connection diagram.
■ Block diagram
SI-7300A
Auxiliary power
supply VCC2
Reference
voltage
Comparator
amplifier
Current
controller
Main power
CC1
supply V
Zener diode for
cancelling counter EMF
ZD
max
10.0
min
4.9
max
10.0
(Ta = 25°C)
min
max
RX
Trigger pulse
generator
circuit
Excitation signal
(4-phase)
Rx : Variable current resistor
■ External connection diagram
SI-7300A
Excitation
signal input
(active low)
(Open collector)
CC2
V
TD62302P
(Toshiba)
PD
+
2.2µF
10V
1
2
3
4
510Ω×4
9
16
15
14
13
8
10k
2SC2002
Rx
A
B
A
B
114
4
10
6
SI-7300A
12
2
18 16 3 13
15
17
11
RSAR
ZD
8
IO
ABA
5
7
IO
9
SB
B
I
OM measurement conditions
V
CC1 = 30V
VCC2 = 5V
R
SA, RSB = 1.8Ω
RX : Open
SPM : Rm = 3.6Ω/
: Lm = 9.0mH/
ZD : V
Z = 60V
Excitation
signal
amplifier
+
µ
100 F
50V
SPM
V
Current detection
resistor Rs
CC1
F.C
signal input
(active low)
φ
φ
Counter EMF
canceller
SI-7330A
VCC2
Excitation
TD62302P
(Open collector)
PD
(Toshiba)
+
µ
2.2 F
10V
A
1
B
2
A
3
B
4
M
VCC1
+
A ZDB
ZD
82Ωx4
9
16
15
14
13
8
10kΩ
RX
A
13
B
8
A
9
B
4
2
11611
18
12
SI-7330A
10
15
31417 19 20
RSAR
6
IO
IO
7
5
SB
100µF
50V
F.C
AA
SPM
BB
I
OM measurement conditions
V
CC1 = 30V
VCC2 = 5V
R
SA, RSB = 1.8Ω
RX : Open
SPM : Rm = 3.6Ω/
: Lm = 9.0mH/
ZD : V
Z = 43V
φ
φ
29
SI-7300 and SI-7330A
■ Equivalent circuit diagram
SI-7300A
R
16
R
R8R
R
6
+
–
2
10
4
Q
R
14
R
R
Q
1
1
17
D
1
16
11
D7D8D9D
9
3D4
D
10
Q3Q
4
12
13
R
9
R3R
Q
R
13
R
11
7
7
R
15
R
5
+
–
2
D5D
Q
5
R
10
8
12
Q
2
D
2
6
Q
6
Trigger pulse
generator circuit
■ External dimensions
21.6
±0.5
••••
Plastic package
4.5
P=2.54
14
15
8
5
7
6
4
3
SI-7300A
±0.5
65.0
±0.4
59.0
φ
2 – 4.5
±0.5
30.0
±1
Type No.
Lot No.
8.6
±0.5
21.6
Pin No. 1 18
•••••
SI-7330A Plastic package
±0.5
69.0
±0.4
63.0
(Unit: mm)
7.8
7
3.8
2.5
±0.5
7.0
3.5
±0.3
0.5
1
16.6
±0.5
35.0
±1
18
8.6
Pin No.
Type No.
Lot No.
12
8.0
φ
20
3.4
P=2.54
1.8 3.8
3
0.5
1.4
SI-7330A
Q
10
R
1
Q
1
R
18
19
11
10
12
D
3
9
Q3Q
26
D
1
D
7
8D9
D
D
4
4
Q
11
R
2
R
27
D
D
10
D
5
Q5Q
13
14
R3R
R
9
Q
7
R
11
R
13
2
7
R
R8R
5
R
15
+
+
–
–
R
16
R
4
Q
R
8
6
R
14
R
12
■ Case temperature vs. Output
current
SI-7300A
1.2
VCC1 = 30V VCC2 = 5V Motor Rm = 3.6Ω/ Lm = 9.0mH/
1.1
1.0
0.9
0
Output current Io (A)
Case temperature T
C (°C)
2
10
Q
2
D
6
φ
16
15
17
6
7
5
6
8
4
3
1
Trigger pulse
generator circuit
20
φ
100806040200
■ Supply voltage vs. Output current
SI-7300A
1.6
1.4
1.2
φ
(A/ )
1.0
O
0.8
0.6
Output current I
0.4
0.2
0
0202428323640
Supply voltage V
V
CC2
=5V
Motor 23PM-C108
Rm=3.6Ω/
Lm=9.0mH/
CC
(V)
■ Case temperature vs. Chopping
frequency
SI-7300A
24
V
CC1
= 30V V
CC2
23
= 5V Motor Rm = 3.6Ω/ Lm = 9.0mH/
22
21
0
Chopping frequency F(KHz)
Case temperature Tc (°C)
φ φ
φ
φ
100806040200
30
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