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ADuM7642ARQZ Arkusz danych(PDF) 11 Page - Analog Devices

Numer części ADuM7642ARQZ
Szczegółowy opis  1 kV RMS Six-Channel Digital Isolators
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Data Sheet
ADuM7640/ADuM7641/ADuM7642/ADuM7643
Rev. 0 | Page 11 of 20
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
*PIN 2 AND PIN 10 ARE INTERNALLY CONNECTED.
CONNECTING BOTH PINS TO PCB SIDE 1 GROUND
IS RECOMMENDED. PIN 11 AND PIN 19 ARE
INTERNALLY CONNECTED. CONNECTING BOTH
PINS TO PCB SIDE 2 GROUND IS RECOMMENDED.
1
2
3
4
20
19
18
17
5
16
6
15
7
14
9
12
10
11
8
13
ADuM7640
TOP VIEW
(Not to Scale)
VDD1A
GND1*
VIA
VIB
VIC
VID
VDD1B
VIE
VIF
GND1*
VDD2A
GND2*
VOA
VOB
VOC
VOD
VDD2B
VOE
VOF
GND2*
Figure 6. ADuM7640 Pin Configuration
Table 20. ADuM7640 Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VDD1A
Supply Voltage A for Isolator Side 1 (3.0 V to 5.5 V). Pin 1 must be connected externally to Pin 7. Connect a 0.01 µF to
0.1 µF between VDD1A (Pin 1) and GND1 (Pin 2).
2
GND1
Ground Reference for Isolator Side 1. Pin 2 and Pin 10 are internally connected, and connecting both pins to the
PCB ground plane is recommended.
3
VIA
Logic Input A.
4
VIB
Logic Input B.
5
VIC
Logic Input C.
6
VID
Logic Input D.
7
VDD1B
Supply Voltage B for Isolator Side 1 (3.0 V to 5.5 V). Pin 7 must be connected externally to Pin 1. Connect a 0.01 µF to
0.1 µF between VDD1B (Pin 7) and GND1 (Pin 10).
8
VIE
Logic Input E.
9
VIF
Logic Input F.
10
GND1
Ground Reference for Isolator Side 1. Pin 2 and Pin 10 are internally connected, and connecting both pins to the PCB
ground plane is recommended.
11
GND2
Ground Reference for Isolator Side 2. Pin 11 and Pin 19 are internally connected, and connecting both pins to the PCB
ground plane is recommended.
12
VOF
Logic Output F.
13
VOE
Logic Output E.
14
VDD2B
Supply Voltage B for Isolator Side 2 (3.0 V to 5.5 V). Pin 14 must be connected externally to Pin 20. Connect a 0.01 µF
to 0.1 µF between VDD2B (Pin 14) and GND2 (Pin 11).
15
VOD
Logic Output D.
16
VOC
Logic Output C.
17
VOB
Logic Output B.
18
VOA
Logic Output A.
19
GND2
Ground Reference for Isolator Side 2. Pin 11 and Pin 19 are internally connected, and connecting both pins to the PCB
ground plane is recommended.
20
VDD2A
Supply Voltage A for Isolator Side 2 (3.0 V to 5.5 V). Pin 20 must be connected externally to Pin 14. Connect a 0.01 µF
to 0.1 µF between VDD2A (Pin 20) and GND2 (Pin 19).
Reference the AN-1109 Application Note for specific layout guidelines.


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