SI-7510
■Internal Block Diagram
■Pin Assignment and Function Table
Pin No.
1
Symbol
MC1
Function
V
2
V
1
CC
MC2 MC3 MC1
CC
Capacitor Connection Terminal for Charge Pump (for MC2)
Capacitor Connection Terminal for Charge Pump (for Gnd)
Capacitor Connection Terminal for Charge Pump (for MC1)
Main Supply Voltage Input
2
MC3
Oscillator
Charge Pump
Highside Drive
Lowside Drive
3
MC2
4
VCC1
OHGA
OHSA
OHGB
OHSB
OHGC
OHSC
OHGD
OHSD
OHGE
OHSE
5
Enable
Output OFF
Enable
MO
6
V
CC2
Logic Voltage Input
7
MO
CL
Monitor to Detect Motor Position
CL
Sequencer
8
Clock
F/H
9
F/H
4-phase, 4-5 phase switching
CW/CCW
Reset
OLA
OLB
OLC
OLD
OLE
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
CW/CCW
Reset
Switching Between Forward and Backward Rotation
Reset
RC
RC Connection for Chopping Off Time Setting
Reference Voltage Input for Motor Current Setting
For Motor Current Detection
RC
PWM
Control
Ref
Ref
Sense
Sense
Gnd
Gnd
Gnd
VOLE
VOLD
VOLC
VOLB
VOLA
VOHSE
VOHGE
VOHSD
VOHGD
VOHSC
VOHGC
VOHSB
VOHGB
VOHSA
VOHGA
Low Side MOSFET Gate Connection Pin (E-phase)
Low Side MOSFET Gate Connection Pin (D-phase)
Low Side MOSFET Gate Connection Pin (C-phase)
Low Side MOSFET Gate Connection Pin (B-phase)
Low Side MOSFET Gate Connection Pin (A-phase)
High Side MOSFET Source Connection Pin (E-phase)
High Side MOSFET Gate Connection Pin (E-phase)
High Side MOSFET Source Connection Pin (D-phase)
High Side MOSFET Gate Connection Pin (D-phase)
High Side MOSFET Source Connection Pin (C-phase)
High Side MOSFET Gate Connection Pin (C-phase)
High Side MOSFET Source Connection Pin (B-phase)
High Side MOSFET Gate Connection Pin (B-phase)
High Side MOSFET Source Connection Pin (A-phase)
High Side MOSFET Gate Connection Terminal (A-phase)
■Typical Connection Diagram
C1
C2
24V
5V
IO=VRS/RS
IOM=Io/2
VCC
2
MC1
MC2 MC3
VCC1
6
1
3
2
4
*IOM
: Motor Coil Current
OHGA
OHSA
OHGB
OHSB
OHGC
OHSC
OHGD
OHSD
5
10 15
30
29
28
27
26
25
24
23
22
21
4
3
9
1
8
tOFF=1.1 Rt Ct
*
*
7
R3
14
12
2
SLA5073
Enable
MO
5
7
8
9
13
6
OHGE
OHSE
11
CL
Logic Signal
Input and Output
5-phase SPM
New Pentagon
F/H
CW/CCW
Reset
10
11
OLA
OLB
OLC
20
19
18
Pins 11 to 15: NC
C4
4
3
79 SLA50745
R1
R1=510Ω
Ref
13
10
OLD
OLE
R
R
R
2=100Ω(VR)
3=20KΩ
S=0.33Ω(1 to 2W)
17
16
2
6
R2
C3
1
8
Sense
Rt=15 to 75KΩ
Ct=420 to 1100pF
14
12
RC
15
Gnd
Io
Rs
C
C
C
C
1=2200pF
2=0.01µF
3=0.1µF
■Truth Table
Ct
Rt
4=0.01µF
Pin Name
Low Level
High Level
Positive Edge
*Be especially careful of noise on the Vcc line. The product may malfunction if noise on the Vcc line is 0.5 V or more.
Clock
CW/CCW
Full/Half
Enable
Forward Rotation (CW)
4-phase excitation
Disable
Backward Rotation (CCW)
4-5 phase excitation
Enable
■Input and Output Timing Chart
Reset
Enable
Reset
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
CL
Reset
Enable
CW/CCW
F/H
■External Dimensions (DIP30)
(Unit : mm)
OHA
OHB
OHC
OHD
OHE
OLA
OLB
OLC
OLD
OLE
MO
Reset
CW, Full
CCW, Full
CCW, Half
CW, Half
28.2±0.3
75
80
85
90
95
100
105
110
CL
Reset
Enable
CW/CCW
F/H
+
0.3
1.0–
0.06
10.16
* Condition to Switch Input Signals
CL
OHA
OHB
OHC
OHD
OHE
OLA
CW/CCW
F/H
OLB
1.778
OLC
OLD
OLE
The range to Prohibit Switching
500ns
The range to
0° to 15°
Prohibit Switching
500ns
Switchable Range
1.654 TYP
MO
0.46±0.1
CW, Half
CCW,Full
Disable
Disable
Reset
Product Mass : Approx.2g
ICs
115
ETC [ ETC ]
