HCPL-788J 데이터 시트보기 (PDF) - HP => Agilent Technologies

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HCPL-788J

Isolation Amplifier with Short Circuit and Overload Detection

HP => Agilent Technologies 

11

VIN+

50 Ω

1

10 Ω 0.01 µF

3

0.1 µF

4

6

VDD1

5, 7

0.1 µF

2, 8

HCPL-788J

Figure 20. AC Test Circuit.

5V

4.7 kΩ

14

FAULT

13

ABSVAL

12

VOUT

11

VREF

0.1 µF

10,15

9, 16

VDD2

0.1 µF

1 VIN+

2 VIN-

FAULT

DETECT

Σ∆

MODULATOR

ENCODER

3 CH

4 CL

256 mV

REFERENCE

6 VLED+

5 VDD1

7 VDD1

8 GND1

Figure 21. Internal Block Diagram.

HCPL-788J

DECODER

D/A

LPF

VREF 11

VOUT 12

RECTIFIER

ABSVAL 13

FAULT 14

VDD2 15

VDD2 10

GND2 9

GND2 16

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