ADM2484EBRWZ-REEL7 datasheet(5/16 Pages) AD

No de pièce	ADM2484EBRWZ-REEL7

Description	500 kbps, ESD Protected, Half-/Full-Duplex, iCoupler, Isolated RS-485 Transceiver

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ADM2484E

Rev. 0 | Page 5 of

16

INSULATION AND SAFETY-RELATED SPECIFICATIONS

Table 5.

Parameter

Symbol

Value

Unit

Conditions

Rated Dielectric Insulation Voltage

5000

V rms

1-minute duration

Minimum External Air Gap (Clearance)

L(I01)

7.7

mm min

Measured from input terminals to output

terminals, shortest distance through air

Minimum External Tracking (Creepage)

L(I02)

8.1

mm min

Measured from input terminals to output

terminals, shortest distance along body

Minimum Internal Gap (Internal Clearance)

0.017

mm min

Insulation distance through insulation

Tracking Resistance (Comparative Tracking Index)

CTI

>175

V

DIN IEC 112/VDE 0303 Part 1

Isolation Group

IIIa

Material Group (DIN VDE 0110, 1/89)

VDE 0884 INSULATION CHARACTERISTICS (PENDING)

This isolator is suitable for basic electrical isolation only within the safety limit data. Maintenance of the safety data must be ensured by

means of protective circuits.

Table 6.

Description

Conditions

Symbol

Characteristic

Unit

CLASSIFICATIONS

Installation Classification per DIN VDE 0110 for Rated

Mains Voltage

≤300 V rms

I to IV

≤450 V rms

I to II

≤600 V rms

I to II

Climatic Classification

40/105/21

Pollution Degree

DIN VDE 0110, see Table 1

2

VOLTAGE

Maximum Working Insulation Voltage

VIORM

848

VPEAK

Input-to-Output Test Voltage

VPR

Method b1

VIORM × 1.875 = VPR, 100% production tested,

tm = 1 sec, partial discharge < 5 pC

1590

VPEAK

Method a

After Environmental Tests, Subgroup 1

VIORM × 1.6 = VPR, tm = 60 sec, partial

discharge < 5 pC

1357

VPEAK

After Input and/or Safety Test,

Subgroup 2/Subgroup 3

VIORM × 1.2 = VPR, tm = 60 sec, partial

discharge < 5 pC

1018

VPEAK

Highest Allowable Overvoltage

(Transient overvoltage, tTR = 10 sec)

VTR

6000

VPEAK

SAFETY-LIMITING VALUES

Maximum value allowed in the event of a

failure, see Figure 9

Case Temperature

TS

150

°C

Input Current

IS, INPUT

265

mA

Output Current

IS, OUTPUT

335

mA

Insulation Resistance at TS

VIO = 500 V

RS

>109

Ω

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