HCPL-7850 View Datasheet(PDF) - HP => Agilent Technologies

Part Name

Description

MFG CO.

HCPL-7850

Hermetically Sealed Analog Isolation Amplifier

HP => Agilent Technologies 

Prev 11 12 13 14 15 16

12

VOLTAGE

REGULATOR

CLOCK

GENERATOR

ISO-AMP

INPUT

Σ∆

MODULATOR

ENCODER

ISOLATION

BOUNDARY

LED DRIVE

CIRCUIT

DETECTOR

CIRCUIT

VOLTAGE

REGULATOR

DECODER

AND D/A

FILTER

ISO-AMP

OUTPUT

Figure 23. HCPL-7850 Block Diagram.

HV+

MOTOR

•••

+–

RSENSE

POSITIVE

FLOATING

SUPPLY

GATE DRIVE

CIRCUIT

•••

U1

78L05

IN OUT

C1

0.1

µF

R5

68

C2

1

0.1

µF

2

C3

0.01

µF

3

4

•••

U2

HCPL-7850

C5

150 pF

+5 V

8

C4

0.1 µF

7

R1

2.00 K

6

R2

2.00 K

5

C6

150 pF

R3

10.0 K

+15 V

C8

0.1 µF

–

U3

+ MC34081

C7

R4

10.0 K

0.1 µF

-15 V

HV–

VOUT

Figure 24. Recommended Application Circuit.

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