Anaheim Integrated Circuit LSILS7290 User Manual
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![Page 3
ABSOLUTE MAXIMUM RATINGS:
PARAMETER
SYMBOLVALUEUNIT
DC Supply Voltage VDD - V SS +7 V
Any Input Voltage VIN VSS - 0.3 to V DD +0.3 V
Operating Temperature TA -20 to +85 °C
Storage Temperature TSTG -85 to +150 °C
ELECTRICAL SPECIFICATIONS (-25°C < TA < +85°C)
PARAMETER SYMBOL MIN TYP MAX \
UNIT CONDITIONS
Supply Voltage VDD 3.0 -5.5 V -...](http://img.usermanuals.tech/thumb/413/6449/w64_integrated-circuit-lsils7290-1478906461_d-2.png "Page 3
ABSOLUTE MAXIMUM RATINGS:
PARAMETER
SYMBOLVALUEUNIT
DC Supply Voltage VDD - V SS +7 V
Any Input Voltage VIN VSS - 0.3 to V DD +0.3 V
Operating Temperature TA -20 to +85 °C
Storage Temperature TSTG -85 to +150 °C
ELECTRICAL SPECIFICATIONS (-25°C < TA < +85°C)
PARAMETER SYMBOL MIN TYP MAX \
UNIT CONDITIONS
Supply Voltage VDD 3.0 -5.5 V -...")
![Page 5
FIGURE 5. TYPICAL APPLICATION SCHEMATIC FOR A \
TWO PHASE
BIPOLAR MOTOR USING A SINGL\
E MOTOR DRIVER IC
7290-060608-5
14
15
12
10 9
7
6
5
4
3
2
1
19
2122
23
24
11
7
10
9
4
2
3
13
14
1 15 8
MCU LS7290 L298
5V
V
M
M0
M1
M2
RESET
ENABLE
STEPPER
MOTOR
WINDINGS
PHA
PHB
PHC
PHD
SENSE1 VREF
INH1
INH2
STEP
FRD/RVRS
VDD
VSS
25pF
25pF 10M
SENSE2
13
18 12
6...](http://img.usermanuals.tech/thumb/413/6449/w64_integrated-circuit-lsils7290-1478906461_d-4.png "Page 5
FIGURE 5. TYPICAL APPLICATION SCHEMATIC FOR A \
TWO PHASE
BIPOLAR MOTOR USING A SINGL\
E MOTOR DRIVER IC
7290-060608-5
14
15
12
10 9
7
6
5
4
3
2
1
19
2122
23
24
11
7
10
9
4
2
3
13
14
1 15 8
MCU LS7290 L298
5V
V
M
M0
M1
M2
RESET
ENABLE
STEPPER
MOTOR
WINDINGS
PHA
PHB
PHC
PHD
SENSE1 VREF
INH1
INH2
STEP
FRD/RVRS
VDD
VSS
25pF
25pF 10M
SENSE2
13
18 12
6...")
![Page 7
7290-060608-7
FIGURE 7. TYPICAL APPLICATION SCH\
EMATIC FOR A FOUR PHASE UNIPOLAR MOTOR USING DISCRETE MO\
SFET TRANSISTORS
NOTE: Q1, Q2, Q3, Q4 are MOSFET Power Transistors suitable for 5V Gate \
Drive
Typical P/Ns = IRLZ44N and IRF3708
10 97
6 5 4
3
2 1
24
MCU
LS72905V
M0
M1
M2
RESET
ENABLE
STEP
FRD/RVRS
VDD
12
VSS
25pF
25pF 10M
100
RX
CLK
14
15
VREF
SENSE2
13 0.01uF
21
23 PHA...](http://img.usermanuals.tech/thumb/413/6449/w64_integrated-circuit-lsils7290-1478906461_d-6.png "Page 7
7290-060608-7
FIGURE 7. TYPICAL APPLICATION SCH\
EMATIC FOR A FOUR PHASE UNIPOLAR MOTOR USING DISCRETE MO\
SFET TRANSISTORS
NOTE: Q1, Q2, Q3, Q4 are MOSFET Power Transistors suitable for 5V Gate \
Drive
Typical P/Ns = IRLZ44N and IRF3708
10 97
6 5 4
3
2 1
24
MCU
LS72905V
M0
M1
M2
RESET
ENABLE
STEP
FRD/RVRS
VDD
12
VSS
25pF
25pF 10M
100
RX
CLK
14
15
VREF
SENSE2
13 0.01uF
21
23 PHA...")
![Page 11
L298
INH1
PHAPHB
LS7290 23
21 20 6
5 7
SLOW / FAST
FIGURE 8. Selecting Between Fast and Slow Decay for One Steppe\
r Motor Winding
(Use identical circuit for the other stepper motor winding )
NOTE: In fast decay mode, inhibit windings are chopped.\
In slow decay mode mode, phase windings are chopped
NOR Gates: CD4001 OR Gates: CD4071
7290-061609-11](http://img.usermanuals.tech/thumb/413/6449/w64_integrated-circuit-lsils7290-1478906461_d-10.png "Page 11
L298
INH1
PHAPHB
LS7290 23
21 20 6
5 7
SLOW / FAST
FIGURE 8. Selecting Between Fast and Slow Decay for One Steppe\
r Motor Winding
(Use identical circuit for the other stepper motor winding )
NOTE: In fast decay mode, inhibit windings are chopped.\
In slow decay mode mode, phase windings are chopped
NOR Gates: CD4001 OR Gates: CD4071
7290-061609-11")
L298
INH1
PHAPHB
LS7290 23
21 20 6
5 7
SLOW / FAST
FIGURE 8. Selecting Between Fast and Slow Decay for One Steppe\
r Motor Winding
(Use identical circuit for the other stepper motor winding )
NOTE: In fast decay mode, inhibit windings are chopped.\
In slow decay mode mode, phase windings are chopped
NOR Gates: CD4001 OR Gates: CD4071
7290-061609-11
7290-061609-12
LS7290
21 (19 ) PHA
PHB
INH1
SENSE1
20 (18 )
23 (22 )
15 (14 )
V M = 120V
1N758 1N758
2N5551 2N55511k1k
10k
10k
10k 10k
1N4003
MOTOR
WINDING
1N4003
Q1
Q2 Q4 Q3
Inverters = 74HC04
Gates = 74HC08 Q1 = Q3 = IRF6218 (Typical)
Q2 = Q4 = IRF3615(Typical)
FIGURE 9. 120V Motor Discrete Component Driver