ADUM1240 查看數據表（PDF） - Analog Devices
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ADUM1240 Datasheet PDF : 24 Pages
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ADuM1240/ADuM1241/ADuM1245/ADuM1246
Data Sheet
INSULATION AND SAFETY RELATED SPECIFICATIONS
Table 13.
Parameter
Rated Dielectric Insulation Voltage
(8-Lead SOIC)
Rated Dielectric Insulation Voltage
(20-Lead SSOP)
Minimum External Tracking and Air Gap,
8-Lead SOIC (Creepage and Clearance)
Minimum Clearance in the Plane of the
Printed Circuit Board, 8-Lead SOIC (PCB
Clearance)
Minimum Clearance in the Plane of the
Printed Circuit Board, 20-Lead SSOP
(PCB Clearance)
Minimum Clearance in the Plane of the
Printed Circuit Board, 20-Lead SSOP
(PCB Clearance)
Minimum Internal Gap (Internal
Clearance)
Tracking Resistance (Comparative
Tracking Index)
Isolation Group
Symbol
L(I02)
L(I01)
L(I01)
L(I02)
CTI
Value
3000
3750
4
4.5
5.1
5.1
0.017
>400
II
Unit
V rms
V rms
mm min
mm min
mm min
mm min
mm min
V
Test Conditions/Comments
1 minute duration
1 minute duration
Measured from input terminals to output terminals,
shortest distance path along package body
Measured from input terminals to output terminals, shortest
distance through air, line of sight, in the PCB mounting plane
Measured from input terminals to output terminals,
shortest distance path along package body
Measured from input terminals to output terminals, shortest
distance through air, line of sight, in the PCB mounting plane
Insulation distance through insulation
DIN IEC 112/VDE 0303 Part 1
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
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150 V rms
For Rated Mains Voltage ≤ 300 V rms
For Rated Mains Voltage ≤ 400 V rms
Climatic Classification
Pollution Degree per DIN VDE 0110, Table 1
Maximum Working Insulation Voltage
Input to Output Test Voltage, Method b1
Input to Output Test Voltage, Method a
After Environmental Tests Subgroup 1
After Input and/or Safety Test Subgroup 2
and Subgroup 3
Highest Allowable Overvoltage
Surge Isolation Voltage
Safety Limiting Values
Case Temperature
Total Power Dissipation at 25°C
Insulation Resistance at TS
Symbol Test Conditions/Comments
VIORM
Vpd(m)
Vpd(m)
Vpd(m)
VIOTM
VIOSM
TS
IS1
RS
VIORM × 1.875 = Vpd(m), 100% production test,
tini = tm = one second, partial discharge < 5 pC
VIORM × 1.5 = Vpd(m), tini = 60 seconds, tm = 10 seconds,
partial discharge < 5 pC
VIORM × 1.2 = Vpd(m), tini = 60 seconds, tm = 10 seconds,
partial discharge < 5 pC
VPEAK = 10 kV, 1.2 µs rise time, 50 µs, 50% fall time
Maximum value allowed in the event of a failure
(see Figure 4)
VIO = 500 V
Characteristic Unit
I to IV
I to III
I to II
40/105/21
2
560
1050
VPEAK
VPEAK
840
672
3500
4000
VPEAK
VPEAK
VPEAK
VPEAK
150
°C
1.64
W
>109
Ω
Rev. B | Page 8 of 24
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