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SLA7021 Datasheet(PDF) 2 Page - Sanken electric

Part # SLA7021
Description  Unipolar Driver ICs
PDF  10 Pages
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Manufacturer  SANKEN [Sanken electric]
Direct Link  http://www.sanken-ele.co.jp/en
Logo SANKEN - Sanken electric

SLA7021 Datasheet(HTML) 2 Page - Sanken electric

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13
SLA7020M and SLA7021M
s Block diagram
s Internal circuit diagram (enclosed with chain line)
6
RS
r5
C3
+
Reg
Reg
15
8
VCC
14
7
2
3
4
121311
C1
C2
C4
r3
r2
r6
r4
Vb(5V)
r1
RS
9
10
15
+
–
+
–
+
–
+
–
Db
Da
Vs=10~30V
R·C for setting
chopper OFF
time
VS
r1
r2
r5/r
6
C3/C
4
Vb
Reference voltage
r3/r
4
C1/C
2
R·C for protection
against chopping
malfunctions
REF
Current peak
detector
circuit
Td
Chopper OFF
time control
circuit
GND
Excitation signal
transfer circuit
IN
OUT
OUT
Auxiliary
power supply
Excitation
signal
VCC
Motor main
power supply
RS
RS
Current detection resistor
Current control and
counter EMF
canceller circuit
Motor
Da/D
b



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