ls7260 LSI Computer Systems, Inc., ls7260 Datasheet - Page 7

• Manufacturer Part Number: ls7260
• Description: Brushless Dc Motor Commutator/controller
• Manufacturer: LSI Computer Systems, Inc.

7260-101705-7
OVERCURRENT
0.001µF
SENSE
33k
FWD/REV
ENABLE
BRAKE
V TRIP
+V
CS1
CS2
S2
S1
S3
12
20
19
17
10
13
14
15
16
1
9
NOTE : With indicated components,
+V
oscillator frequency is approximately 30kHz.
R
R
DETECTOR
P O S I T I V E
+
-
EDGE
COMMUTATION
SELECT LOGIC
+V
SEQUENCE
POSITIVE EDGE
DETECTOR
FIGURE 6. LS7260 AND LS7262 BLOCK DIAGRAM
-
+
SAWTOOTH
OSCILLATOR
4
S
R
DECODER
Q
INPUT
8
ENCODER
OUTPUT
GND
+V
6
OUTPUT
DRIVERS
COMMON
5
11
18
V
V
SS
DD
6
2
4
8
3
7
O1
O2
O3
O5
O6
O4