ADuM1240/ADuM1241/ADuM1245/ADuM1246 Data Sheet
Rev. B | Page 8 of 24
INSULATION AND SAFETY RELATED SPECIFICATIONS
Table 13.
Parameter Symbol Value Unit Test Conditions/Comments
Rated Dielectric Insulation Voltage
(8-Lead SOIC)
Rated Dielectric Insulation Voltage
(20-Lead SSOP)
3750 V rms 1 minute duration
Minimum External Tracking and Air Gap,
8-Lead SOIC (Creepage and Clearance)
L(I02) 4 mm min Measured from input terminals to output terminals,
shortest distance path along package body
Minimum Clearance in the Plane of the
Printed Circuit Board, 8-Lead SOIC (PCB
Clearance)
L(I01) 4.5 mm min Measured from input terminals to output terminals, shortest
distance through air, line of sight, in the PCB mounting plane
Minimum Clearance in the Plane of the
Printed Circuit Board, 20-Lead SSOP
(PCB Clearance)
L(I01) 5.1 mm min Measured from input terminals to output terminals,
shortest distance path along package body
Minimum Clearance in the Plane of the
Printed Circuit Board, 20-Lead SSOP
(PCB Clearance)
L(I02) 5.1 mm min Measured from input terminals to output terminals, shortest
distance through air, line of sight, in the PCB mounting plane
Minimum Internal Gap (Internal
Clearance)
0.017 mm min Insulation distance through insulation
Tracking Resistance (Comparative
Tracking Index)
CTI >400 V DIN IEC 112/VDE 0303 Part 1
Isolation Group II Material Group (DIN VDE 0110, 1/89, Table 1)
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12 INSULATION CHARACTERISTICS
These isolators are suitable for reinforced electrical isolation within the safety limit data only. Maintenance of the safety data is ensured by
protective circuits. The asterisk (*) marked on packages denotes DIN V VDE V 0884-10 approval.
Table 14. 8-Lead SOIC (R-8)
Parameter Symbol Test Conditions/Comments Characteristic Unit
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150 V rms I to IV
For Rated Mains Voltage ≤ 300 V rms I to III
For Rated Mains Voltage ≤ 400 V rms I to II
Climatic Classification 40/105/21
Pollution Degree per DIN VDE 0110, Table 1 2
Maximum Working Insulation Voltage
IORM
PEAK
Input to Output Test Voltage, Method b1 V
pd(m)
V
IORM
× 1.875 = V
pd(m)
, 100% production test,
t
ini
= t
m
= one second, partial discharge < 5 pC
1050 V
PEAK
Input to Output Test Voltage, Method a
After Environmental Tests Subgroup 1 V
pd(m)
V
IORM
× 1.5 = V
pd(m)
, t
ini
= 60 seconds, t
m
= 10 seconds,
partial discharge < 5 pC
840 V
PEAK
After Input and/or Safety Test Subgroup 2
and Subgroup 3
pd(m)
IORM
pd(m)
ini
m
partial discharge < 5 pC
PEAK
Highest Allowable Overvoltage V
IOTM
3500 V
PEAK
Surge Isolation Voltage V
IOSM
V
PEAK
= 10 kV, 1.2 µs rise time, 50 µs, 50% fall time 4000 V
PEAK
Safety Limiting Values Maximum value allowed in the event of a failure
(see Figure 4)
Case Temperature T
S
150 °C
Total Power Dissipation at 25°C I
S1
1.64 W
Insulation Resistance at T
S
R
S
V
IO
= 500 V >10
9
Ω