Data Sheet

AD7403

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 INSULATION CHARACTERISTICS

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

means of protective circuits.

Table 7.

Description

Symbol

Characteristic

Unit

INSTALLATION CLASSIFICATION PER DIN VDE 0110

For Rated Mains Voltage ≤300 V rms

I to IV

For Rated Mains Voltage ≤450 V rms

I to IV

For Rated Mains Voltage ≤600 V rms

I to IV

For Rated Mains Voltage ≤1000 V rms

I to IV

CLIMATIC CLASSIFICATION

40/105/21

POLLUTION DEGREE (DIN VDE 0110, TABLE 1)

2

MAXIMUM WORKING INSULATION VOLTAGE

1250

INPUT TO OUTPUT TEST VOLTAGE, METHOD B1

2344

INPUT TO OUTPUT TEST VOLTAGE, METHOD A

After Environmental Test Subgroup 1

2000

After Input and/or Safety Test Subgroup 2/ Safety Test Subgroup 3

1500

8000

SURGE ISOLATION VOLTAGE

1.2 µs Rise Time, 50 μs, 50% Fall Time

12000

SAFETY LIMITING VALUES (MAXIMUM VALUE ALLOWED IN THE EVENT OF A FAILURE, SEE Figure 3

AND Figure 4)

Case Temperature

150

°C

AD7403

2.78

W

AD7403-8

1.19

W

Ω

0

1

2

3

4

0

50

100

150

200

AMBIENT TEMPERATURE (°C)

Figure 3. AD7403 Thermal Derating Curve, Dependence of Safety Limiting

Values with Case Temperature per DIN V VDE V 0884-10

AMBIENT TEMPERATURE (°C)

0

0

1

2

50

100

150

200

Figure 4. AD7403-8 Thermal Derating Curve, Dependence of Safety Limiting

Values with Case Temperature per DIN V VDE V 0884-10

Rev. B | Page 7 of 24