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SLA7026M Schematic ( PDF Datasheet ) - Sanken electric

Teilenummer SLA7026M
Beschreibung 2-Phase Stepper Motor Unipolar Driver ICs
Hersteller Sanken electric
Logo Sanken electric Logo 




Gesamt 7 Seiten
SLA7026M Datasheet, Funktion
2-Phase/1-2 Phase Excitation
SLA7027MU/SLA7024M/SLA7026M
2-Phase Stepper Motor Unipolar Driver ICs
sAbsolute Maximum Ratings
Parameter
Motor supply voltage
FET Drain-Source voltage
Control supply voltage
TTL input voltage
Reference voltage
Output current
Power dissipation
Channel temperature
Storage temperature
Symbol
VCC
VDSS
VS
VIN
VREF
IO
PD1
PD2
Tch
Tstg
SLA7027MU
1
Ratings
SLA7024M
46
100
46
7
2
1.5
4.5 (Without Heatsink)
35 (TC=25°C)
+150
40 to +150
SLA7026M
3
(Ta=25°C)
Units
V
V
V
V
V
A
W
W
°C
°C
sElectrical Characteristics
Parameter
Symbol
Control supply current
Control supply voltage
FET Drain-Source voltage
FET ON voltage
FET drain leakage current
FET diode forward voltage
TTL input current
TTL input voltage
(Active High)
TTL input voltage
(Active Low)
Switching time
IS
Condition
VS
VDSS
Condition
VDS
Condition
IDSS
Condition
VSD
Condition
IIH
Condition
IIL
Condition
VIH
Condition
VIL
Condition
VIH
Condition
VIL
Condition
Tr
Condition
Tstg
Condition
Tf
Condition
SLA7027MU
min typ max
10 15
VS=44V
10 24 44
100
VS=44V, IDSS=250µA
0.85
ID=1A, AVS=14V
4
VDSS=100V, VS=44V
1.2
ID=1A
40
VIH=2.4V, VS=44V
0.8
VIL=0.4V, VS=44V
2
ID=1A
0.8
VDSS=100V
2
VDSS=100V
0.8
ID=1A
0.5
VS=24V, ID=0.8A
0.7
VS=24V, ID=0.8A
0.1
VS=24V, ID=0.8A
Ratings
SLA7024M
min typ max
10 15
VS=44V
10 24 44
100
VS=44V, IDSS=250µA
0.6
ID=1A, VS=14V
4
VDSS=100V, VS=44V
1.1
ID=1A
40
VIH=2.4V, VS=44V
0.8
VIL=0.4V, VS=44V
2
ID=1A
0.8
VDSS=100V
2
VDSS=100V
0.8
ID=1A
0.5
VS=24V, ID=1A
0.7
VS=24V, ID=1A
0.1
VS=24V, ID=1A
SLA7026M
min typ max
10 15
VS=44V
10 24 44
100
VS=44V, IDSS=250µA
0.85
ID=3A, VS=14V
4
VDSS=100V, VS=44V
2.3
ID=3A
40
VIH=2.4V, VS=44V
0.8
VIL=0.4V, VS=44V
2
ID=3A
0.8
VDSS=100V
2
VDSS=100V
0.8
ID=3A
0.5
VS=24V, ID=1A
0.7
VS=24V, ID=1A
0.1
VS=24V, ID=1A
Units
mA
V
V
V
mA
V
µA
mA
V
V
µs
20 SLA7027MU/SLA7024M/SLA7026M






SLA7026M Datasheet, Funktion
2-Phase Stepper Motor Unipolar Driver ICs (2-Phase/1-2 Phase Excitation)
SLA7027MU/SLA7024M/SLA7026M
sThermal Design
An outline of the method for calculating heat dissipation is shown be-
low.
(1) Obtain the value of PH that corresponds to the motor coil current
IO from Fig. 7 "Heat dissipation per phase PH vs. Output current IO."
Fig. 7 Heat dissipation per phase PH vs. Output current IO
SLA7027MU
1.2
1
0.8 =44V
0.6
VCC 36V
24V
Motor : 23LM-C202
Holding mode
15V
0.4
0.2
0
0
0.2 0.4 0.6
0.8 1.0
Output current IO (A)
SLA7024M
1.2
1.0
0.8 36V
0.6
VCC =44V
Motor : 23LM-C004
15V Holding mode
0.4 24V
0.2
0
0 0.2 0.4 0.6 0.8 1.0
Output current IO (A)
Thermal characteristics
SLA7027MU
35
30
25
Without heatsink
Natural cooling
20 TC ( 4 pin)
15 Motor : PH265-01B
Motor current IO=0.8A
10 Ta=25°C
VCC=24V, VS=24V
5 2-phase excitation
0
200
500 1K
Response frequency (pps)
SLA7024M
30
25
Without heatsink
Natural cooling
20
TC ( 4 pin)
15
Motor : PH265-01B
10 Motor current IO=0.8A
Ta=25°C
VCC=24V, VS=24V
5 2-phase excitation
0
200 500 1K
Response frequency (pps)
(2) The power dissipation Pdiss is obtained using the following formula.
2-phase excitation: Pdiss 2PH+0.015×VS (W)
1-2 phase excitation: Pdiss
3
2
PH+0.015×VS (W)
(3) Obtain the temperature rise that corresponds to the calcu-
lated value of Pdiss from Fig. 8 "Temperature rise."
SLA7026M
4.0
3.0
Motor : 23PM-C503
2.0 Holding mode
1.0
0
0 1.0 2.0 3.0
Output current IO (A)
Fig. 8 Temperature rise
150
Tj
100
TC
Natural cooling
Without heatsink
50
0
0 1234 5
Total Power (W)
SLA7026M
50
40
Without heatsink
Natural cooling
30 TC( 4 pin)
Motor : 23PM-C705
20 Motor current IO=1.5A
Ta=25°C
VCC=24V, VS=24V
10 2-phase excitation
0
100 500 1K
5K
Response frequency (pps)
SLA7027MU/SLA7024M/SLA7026M 25

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