EVAL-AD7401EB datasheet(6/20 Pages) AD

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AD7401

Rev. A | Page 6 of 20

DIN EN 60747-5-2 (VDE 0884 PART 2) INSULATION CHARACTERISTICS

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

of protective circuits.

Table 5.

Description

Symbol

Characteristic

Unit

INSTALLATION CLASSIFICATION PER DIN VDE 0110

For Rated Mains Voltage ≤ 300 V rms

I–IV

For Rated Mains Voltage ≤ 450 V rms

I–II

For Rated Mains Voltage ≤ 600 V rms

I–II

CLIMATIC CLASSIFICATION

40/105/21

POLLUTION DEGREE (DIN VDE 0110, TABLE I)

MAXIMUM WORKING INSULATION VOLTAGE

VIORM

891

V peak

INPUT-TO-OUTPUT TEST VOLTAGE, METHOD B1

VIORM × 1.875 = VPR, 100% Production Test, tm = 1 sec, Partial Discharge < 5 pC

VPR

1671

V peak

INPUT-TO-OUTPUT TEST VOLTAGE, METHOD A

VPR

After Environmental Test Subgroup 1

1426

V peak

VIORM × 1.6 = VPR, tm = 60 sec, Partial Discharge < 5 pC

After Input and/or Safety Test Subgroup 2/3

1069

V peak

VIORM × 1.2 = VPR, tm = 60 sec, Partial Discharge < 5 pC

HIGHEST ALLOWABLE OVERVOLTAGE (TRANSIENT OVERVOLTAGE, tTR = 10 sec)

VTR

6000

V peak

SAFETY-LIMITING VALUES (MAXIMUM VALUE ALLOWED IN THE EVENT OF A FAILURE, ALSO SEE Figure 4)

Case Temperature

150

°C

Side 1 Current

IS1

265

Side 2 Current

IS2

335

INSULATION RESISTANCE AT TS, VIO = 500 V

>109

CASE TEMPERATURE (°C)

350

300

250

200

150

100

150

200

SIDE #1

SIDE #2

Figure 4. Thermal Derating Curve, Dependence of Safety-Limiting Values

with Case Temperature per DIN EN 60747-5-2

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