hcpl-7851-300 Avago Technologies, hcpl-7851-300 Datasheet - Page 12
hcpl-7851-300
Manufacturer Part Number
hcpl-7851-300
Description
Hermetically Sealed Analog Isolation Amplifier
Manufacturer
Avago Technologies
Datasheet
1.HCPL-7851-300.pdf
(16 pages)
- Current page: 12 of 16
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ISO-AMP
• • •
Figure 24. Recommended Application Circuit.
12
Figure 23. HCPL-7850 Block Diagram.
INPUT
MOTOR
MODULATOR
REGULATOR
R
+
SENSE
VOLTAGE
–
HV+
HV–
C1
0.1
µF
GATE DRIVE
• • •
GENERATOR
FLOATING
POSITIVE
SUPPLY
CIRCUIT
ENCODER
IN
CLOCK
78L05
U1
OUT
R5
68
0.1
µF
C2
• • •
0.01
µF
LED DRIVE
C3
CIRCUIT
1
2
3
4
BOUNDARY
ISOLATION
HCPL-7850
U2
DETECTOR
CIRCUIT
8
7
6
5
+5 V
C4
0.1 µF
150 pF
REGULATOR
DECODER
VOLTAGE
2.00 K
2.00 K
AND D/A
C6
R1
R2
R4
10.0 K
–
+
+15 V
-15 V
U3
150 pF
10.0 K
C5
MC34081
R3
0.1 µF
FILTER
C7
0.1 µF
C8
V
ISO-AMP
OUTPUT
OUT
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