Datasheet

ADuM5401/ADuM5402/ADuM5403/ADuM5404 Data Sheet
Rev. C | Page 8 of 28
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
Typical specifications are at T
A
= 25°C, V
DD1
= 5.0 V, V
ISO
= 3.3 V, V
SEL
= GND
ISO
. Minimum/maximum specifications apply over the entire
recommended operation range which is 4.5 V ≤ V
DD1
≤ 5.5 V, 3.0 V ≤ V
ISO
≤ 3.6 V; and −40°C ≤ T
A
≤ +105°C, unless otherwise noted.
Switching specifications are tested with C
L
= 15 pF and CMOS signal levels, unless otherwise noted.
Table 10. DC-to-DC Converter Static Specifications
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
DC-TO-DC CONVERTER SUPPLY
Setpoint V
ISO
3.0 3.3 3.6 V I
ISO
= 0 mA
Line Regulation V
ISO (LINE)
1 mV/V I
ISO
= 50 mA, V
DD1
= 3.0 V to 3.6 V
Load Regulation V
ISO (LOAD)
1 5 % I
ISO
= 6 mA to 54 mA
Output Ripple V
ISO (RIP)
50 mV p-p 20 MHz bandwidth, C
BO
= 0.1 µF||10 µF, I
ISO
= 90 mA
Output Noise V
ISO (NOISE)
130 mV p-p C
BO
= 0.1 µF||10 µF, I
ISO
= 90 mA
Switching Frequency f
OSC
180 MHz
PWM Frequency f
PWM
625 kHz
Output Supply Current I
ISO (MAX)
100 mA V
ISO
> 3 V
Efficiency at I
ISO (MAX)
30
%
I
ISO
= 90 mA
I
DD1
, No V
ISO
Load I
DD1 (Q)
14 20 mA
I
DD1
, Full V
ISO
Load I
DD1 (MAX)
230 mA
Table 11. DC-to-DC Converter Dynamic Specifications
Parameter Symbol
1 Mbps—A or C Grade 25 Mbps—C Grade
Unit Test Conditions/Comments Min Typ Max Min Typ Max
SUPPLY CURRENT
Input I
DD1
ADuM5401 9 44 mA No V
ISO
load
ADuM5402
9
45
mA
No V
ISO
load
ADuM5403 9 46 mA No V
ISO
load
ADuM5404 9 47 mA No V
ISO
load
Available to Load I
ISO (LOAD)
ADuM5401 100 92 mA
ADuM5402 100 91 mA
ADuM5403 100 89 mA
ADuM5404 100 88 mA
Table 12. Switching Specifications
Parameter Symbol
A Grade
C Grade
Unit Test Conditions/Comments Min Typ Max Min Typ Max
SWITCHING SPECIFICATIONS
Data Rate 1 25 Mbps Within PWD limit
Propagation Delay t
PHL
, t
PLH
60 100 45 60 ns 50% input to 50% output
Pulse Width Distortion PWD 40 6 ns |t
PLH
− t
PHL
|
Change vs. Temperature
5
ps/°C
Pulse Width PW 1000 40 ns Within PWD limit
Propagation Delay Skew t
PSK
50 15 ns Between any two units
Channel Matching
Codirectional
1
t
PSKCD
50 6 ns
Opposing Directional
2
t
PSKOD
50
15
ns
1
Codirectional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on the same side of the isolation
barrier.
2
Opposing directional channel matching is the absolute value of the difference in propagation delays between any two channels with inputs on opposing sides of the
isolation barrier.