ADuM1280/ADuM1281/ADuM1285/ADuM1286
Data Sheet
Parameter
Symbol Min
AC SPECIFICATIONS
Output Rise/Fall Time
tR/tF
Common-Mode Transient Immunity1 |CM|
25
Refresh Period
tr
Typ
Max
2.5
35
1.6
Unit
ns
kV/μs
μs
Test Conditions
10% to 90%
VIx = VDDx, VCM = 1000 V,
transient magnitude = 800 V
1|CM| is the maximum common-mode voltage slew rate that can be sustained while maintaining Vo > 0.8 VDDX. The common-mode voltage slew rates apply to both rising and
falling common-mode voltage edges.
PACKAGE CHARACTERISTICS
Table 22.
Parameter
Resistance (Input-to-Output)1
Capacitance (Input-to-Output)1
Input Capacitance2
IC Junction-to-Ambient Thermal
Resistance
Symbol Min Typ Max Unit Test Conditions/Comments
RI-O
1013
Ω
CI-O
2
pF f = 1 MHz
CI
4.0
pF
θJA
85
°C/W Thermocouple located at center of package underside
1 The device is considered a 2-terminal device; Pin 1 through Pin 4 are shorted together and Pin 5 through Pin 8 are shorted together.
2 Input capacitance is from any input data pin to ground.
REGULATORY INFORMATION
The ADuM1280/ADuM1281/ADuM1285/ADuM1286 are approved by the organizations listed in Table 23. See Table 27 and Table 28 for
recommended maximum working voltages for specific cross-isolation waveforms and insulation levels.
Table 23.
UL
Recognized Under UL 1577
Component Recognition Program1
Single Protection, 3000 V rms
Isolation Voltage
File E214100
CSA
Approved under CSA Component Acceptance
Notice 5A
Basic insulation per CSA 60950-1-03 and
IEC 60950-1, 390 V rms (550 V peak) maximum
working voltage
File 205078
VDE
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10): 2006-122
Reinforced insulation, 560 V peak
File 2471900-4880-0001
1 In accordance with UL 1577, each ADuM1280/ADuM1281/ADuM1285/ADuM1286 is proof tested by applying an insulation test voltage ≥ 3600 V rms for 1 second
(current leakage detection limit = 6 μA).
2 In accordance with DIN V VDE V 0884-10, each ADuM1280/ADuM1281/ADuM1285/ADuM1286 is proof tested by applying an insulation test voltage ≥ 1050 V peak for
1 second (partial discharge detection limit = 5 pC). The asterisk (*) marked on the component designates DIN V VDE V 0884-10 approval.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 24.
Parameter
Rated Dielectric Insulation Voltage
Clearance in the Plane of the PCB
Symbol
CLPCB
Value
3000
4.5
Minimum External Air Gap (Clearance)
L(I01)
Minimum External Tracking (Creepage)
L(I02)
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index) CTI
Isolation Group
4.0
4.0
0.017
>400
II
Unit
V rms
mm min
mm min
mm min
mm min
V
Test Conditions/Comments
1-minute duration
Measured from input terminals to output terminals,
shortest line of sight distance through air in the
plane of the PCB
Measured from input terminals to output terminals,
shortest distance through air
Measured from input terminals to output terminals,
shortest distance path along body
Insulation distance through insulation
DIN IEC 112/VDE 0303 Part 1
Material Group (DIN VDE 0110, 1/89, Table 1)
Rev. C | Page 12 of 22