Data Sheet

ADuM4121/ADuM4121-1

Rev. 0 | Page 5 of 16

INSULATION AND SAFETY-RELATED SPECIFICATIONS

Table 4.

Parameter

Symbol

Value

Unit

Conditions

Rated Dielectric Insulation Voltage

5000

V rms

1-minute duration

Minimum External Air Gap (Clearance)

L(I01)

8 min

mm

Measured from input terminals to output terminals, shortest

distance through air

Minimum External Tracking (Creepage)

L(I02)

8 min

mm

Measured from input terminals to output terminals, shortest

distance path along body

Minimum Clearance in the Plane of the Printed

Circuit Board (PCB Clearance)

L (PCB)

8.3 min

mm

Measured from input terminals to output terminals, shortest

distance through air, line of sight, in the PCB mounting plane

Minimum Internal Gap (Internal Clearance)

25.5 min

µm

Minimum distance through insulation

Tracking Resistance (Comparative Tracking Index)

CTI

>400

V

DIN IEC 112/VDE 0303 Part 3

Isolation Group

II

Material Group (DIN VDE 0110, 1/89, Table 1)

DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS

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

Table 5. VDE Characteristics

Description

Test Conditions/Comments

Symbol

Characteristic

Unit

Installation Classification per DIN VDE 0110

For Rated Mains Voltage ≤ 600 V rms

I to IV

Climatic Classification

40/105/21

Pollution Degree per DIN VDE 0110, Table 1

2

Maximum Working Insulation Voltage

849

V peak

Input to Output Test Voltage, Method B1

partial discharge < 5 pC

1592

V peak

Input to Output Test Voltage, Method A

After Environmental Tests Subgroup 1

1274

V peak

After Input and/or Safety Test Subgroup 2

and Subgroup 3

1019

V peak

Highest Allowable Overvoltage

7000

V peak

Surge Isolation Voltage Basic

VPEAK = 16 kV, 1.2 µs rise time, 50 µs, 50% fall time

16,000

V peak

Surge Isolation Voltage Reinforced

VPEAK = 16 kV, 1.2 µs rise time, 50 µs, 50% fall time

10,000

V peak

Safety Limiting Values

Maximum value allowed in the event of a failure (see Figure 2)

Maximum Junction Temperature

150

°C

Safety Total Dissipated Power

1.2

W

Ω

Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values on

Case Temperature, per DIN V VDE V 0884-10

RECOMMENDED OPERATING CONDITIONS

Table 6.

Parameter

Value

−40°C to +125°C

Supply Voltages

2.5 V to 6.5 V

4.5 V to 35 V

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

0

50

100

150

200

AMBIENT TEMPERATURE (°C)