Datasheet

Data Sheet ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447
Rev. E | Page 13 of 25
ABSOLUTE MAXIMUM RATINGS
T
A
= 25°C, unless otherwise noted.
Table 19.
Parameter Rating
Supply Voltages (V
DD1
, V
DD2
) −0.5 V to +5 V
Input Voltages (V
IA
, V
IB
) −0.5 V to V
DDI
+ 0.5 V
Output Voltages (V
OA
, V
OB
) −0.5 V to V
DD2
+ 0.5 V
Average Output Current per Pin
1
Side 1 (I
O1
) −10 mA to +10 mA
Side 2 (I
O2
) −10 mA to +10 mA
Common-Mode Transients
2
−100 kV/µs to +100 kV/µs
Storage Temperature (T
ST
) Range −65°C to +150°C
Ambient Operating Temperature
(T
A
) Range
−40°C to +125°C
1
See Figure 4 for maximum safety power values for various temperatures.
2
Refers to common-mode transients across the insulation barrier. Common-mode
transients exceeding the absolute maximum ratings can cause latch-up or
permanent damage.
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Table 20. Maximum Continuous Working Voltage
1
Parameter Value Constraint
AC Voltage
60 Hz Bipolar Waveform 565 V
PEAK
50-year minimum lifetime
60 Hz Unipolar Waveform
Basic Insulation
975 V
PEAK
50-year minimum lifetime
DC Voltage
Basic Insulation 975 V
PEAK
50-year minimum lifetime
1
Refers to continuous voltage magnitude imposed across the isolation
barrier. See the Insulation Lifetime section for more details.
ESD CAUTION
Table 21. Truth Table (Positive Logic) for all Models
V
Ix
Input
1, 2
V
DDI
State
3
V
DDO
State
4
EN
x
Input
1
V
Ox
Output
1
Description
H Powered Powered L H Normal operation; data is high and refresh is enabled.
L Powered Powered L L Normal operation; data is low and refresh is enabled.
H Powered Powered H H Output is high, and refresh is disabled.
L Powered Powered H L
5
Output is low, and refresh is disabled.
L Unpowered Powered L Default Input unpowered. Outputs are in the default state, high for
ADuM1440, ADuM1441, and ADuM1442, and low ADuM1445,
ADuM1446, and ADuM1447. Outputs return to input state
within 150 µs of V
DDI
power restoration. See the pin function
descriptions (Table 22 through Table 24) for more details.
L Unpowered Powered H Hold Input unpowered. Outputs are the last state before input
power is shut down.
X Powered Unpowered X Z Output unpowered. Output pins are in high impedance state.
Outputs return to input state within 34 µs of V
DDO
power
restoration. See the pin function descriptions (Table 22 through
Table 24) for more details.
1
H = high, L = low, X = don’t care, and Z = high impedance.
2
V
Ix
and V
Ox
refer to the input and output signals of a given channel (A, B, C, or D).
3
V
DDI
refers to the power supply on the input side of a given channel (A, B, C, or D).
4
V
DDO
refers to the power supply on the output side of a given channel (A, B, C, or D).
5
Low input must follow a falling edge; otherwise, it can be in the default low state.