LS7560 Просмотр технического описания (PDF) - LSI Corporation
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LS7560 Datasheet PDF : 8 Pages
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VR VR VR
SEQUENCE
SELECT In
1
VR
26
SENSOR
Inputs 25
24
F/R 27
ENABLE
In
2
DECODER
VR
VR/2
+
_
FREQUENCY
TO
PULSE WIDTH
CONVERTER
VR 19
RC In 4
TACHOMETER
Out
5
ERROR AMP (-) 7
ERROR AMP (+) 6
ERROR AMP Out 8
LOW VR DETECT
SWITCH
_
ERROR
AMP
+
_
PWM
GEN.
+
OSCILLATOR
9
OSC.
FAULT INDICATOR Out
3
PWM CONTROL
In
21
VR
REFERENCE
GENERATOR
VDD
LOW VDD
DETECT
VDD
CONTROL
SWITCH
EDGE TRIGGERED
DELAY
RQ
S
VR
TOP DRIVER 20
POLARITY SELECT In
VDD
SWITCH
CONTROL
VDD
VDD
VDD
17 O1
16 O2
TOP
DRIVER
Outputs
15 O3
VDD
14 O4
VDD
VDD
13 O5
12 O6
VR
BOTTOM
DRIVER
Outputs
22 BRAKE SELECT
VR
23 BRAKE In
+V
28 VDD
-V
18 VSS
10
+
OVERCURRENT
SENSE In
11 - +
_
100mV
7560/61-030599-4
SQ
R
FIGURE 2. LS7560/LS7561 MOTOR CONTROLLER BLOCK DIAGRAM
INTERNAL BOND PAD
NC FOR LS7560
VDD FOR LS7561
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