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SLA7051M

P1-P3P4-P6P7-P9P10-P12P13-P14
2-Phase Unipolar Stepper Motor Driver
SLA7050M/7051M/7052M October 2005
Sanken Electric Co.,Ltd.
I03-002EA-051006
Electrical Characteristic (Ta=25℃,Vs=24V,Vcc=5V Unless Otherwise Noted)
Truth table
Input Logic Timing
10μS(min)
5μS(min) 5μS(min)
2μS(min) 2μS(min) 2μS(min) 2μS(min)
Limits
Characteristic Symbol
MIN TYP MAX
Unit Test Condition
PWM OFF Time
T
OFF 12 μS
PWM Minimum ON Time
T
ON(min) 5 μS
Sleep-Enable return time
T
SE 100 μS
V
REF：2.0→1.5
V
Io：1.5 A
TONC 2.5 μS Clock→Out
Switching Time
T
OFFC 2.0 μS Clock→Out
Pin Function Low level High level
CW／CCW
Forward(CW) Reverse(CCW)
Full／Half
Full Step Half Step
REF
Enable Output disable(Sleep)
Sync
Non synchronous PWM Synchronous PWM
Clock
Positive Edge
CW／CCW
&
Full／Half
Clock
4/14
2-Phase Unipolar Stepper Motor Driver
SLA7050M/7051M/7052M October 2005
Sanken Electric Co.,Ltd.
I03-002EA-051006
Timing chart
Vcc
Clock
CW/CCW
F/H
OUT_ A
OUT_ /A
OUT_ B
OUT_ /B
Step
024602420654321076567012460
・This timing chart is a voltage mark.
・PWM signal for current control is not superimposed on this timing chart.
5/14
2-Phase Unipolar Stepper Motor Driver
SLA7050M/7051M/7052M October 2005
Sanken Electric Co.,Ltd.
I03-002EA-051006
Heat design data
Total Power－ΔT indegc
Ta‐P
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0 102030405060708090100
Ambient Temperature (℃)
Allowable Package Power
Dissipation in Watts (W)
θj-a=31.25(℃/W)
0
25
50
75
100
125
150
012345
Total Power P (W)
ΔT (℃)
ΔTj-a
ΔTc-a
Ta=25℃
Air cooling without blower (No Fin)
θj-a=31.25(℃/W)
θc-a=27.5
(
℃/W
)
※The temperature of the case is 10pin.
6/14
P1-P3P4-P6P7-P9P10-P12P13-P14

SLA7051M

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Description:
IC MTR DRV UNIPOLAR 3-5.5V 18ZIP
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