ADUM5400(Rev0) Просмотр технического описания (PDF) - Analog Devices

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производитель

ADUM5400
(Rev.:Rev0)

Quad-Channel Isolator with Integrated DC-to-DC Converter

Analog Devices 

ADuM5400

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

VDD1 1

16 VISO

GND1 2

15 GNDISO

VIA 3 ADuM5400 14 VOA

VIB 4 TOP VIEW 13 VOB

VIC 5 (Not to Scale) 12 VOC

VID 6

11 VOD

VDDL 7

10 VISO

GND1 8

9 GNDISO

Figure 3. Pin Configuration

Table 9. Pin Function Descriptions

Pin No.

Mnemonic Description

1

VDD1

Primary Supply Voltage, 4.5 V to 5.5 V.

2, 8

GND1

Ground 1. Ground reference for isolator primary. Pin 2 and Pin 8 are internally connected to each other,

and it is recommended that both pins be connected to a common ground.

3

VIA

Logic Input A.

4

VIB

Logic Input B.

5

VIC

Logic Input C.

6

VID

Logic Input D.

7

VDDL

Logic Power Supply Voltage. This pin must be connected to VDD1 and have a dedicated bypass capacitor.

9, 15

GNDISO

Ground Reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected to each other, and it is

recommended that both pins be connected to a common ground.

10, 16

VISO

Secondary Supply Voltage Output for External Loads, 5.0 V. These pins are not tied together internally

and must be connected together on the PCB.

11

VOD

Logic Output D.

12

VOC

Logic Output C.

13

VOB

Logic Output B.

14

VOA

Logic Output A.

Table 10. Truth Table (Positive Logic)

VIx Input1 VDD1/VDDL State VDD1/VDDL Input (V)

High

Powered

5.0

Low

Powered

5.0

VISO State

Powered

Powered

VISO Output (V)

5.0

5.0

VOx Output1

High

Low

1 VIx and VOx refer to the input and output signals of a given channel (A, B, C, or D).

Operation

Normal operation, data is high

Normal operation, data is low

Rev. 0 | Page 8 of 16

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