ADUM1510BRWZ-RL Analog Devices Inc, ADUM1510BRWZ-RL Datasheet - Page 9

• Manufacturer Part Number: ADUM1510BRWZ-RL
• Description: 5 - CH UNIDIRECTIONAL DIGITAL ISOLATORS
• Manufacturer: Analog Devices Inc
• Series: iCoupler®r

Specifications of ADUM1510BRWZ-RL

• Inputs - Side 1/side 2: 5/0
• Number Of Channels: 5
• Isolation Rating: 2500Vrms
• Voltage - Supply: 4.5 V ~ 5.5 V
• Data Rate: 10Mbps
• Propagation Delay: 30ns
• Output Type: Logic
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Operating Temperature: -40°C ~ 105°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The preceding magnetic flux density values correspond to
specific current magnitudes at given distances away from the
ADuM1510 transformers. Figure 12 expresses these allowable
current magnitudes as a function of frequency for selected
distances. As seen in Figure 12, the ADuM1510 is extremely
immune and is affected only by extremely large currents
operated at high frequency and very close to the component.
For example, at a magnetic field frequency of 1 MHz, a 0.5 kA
current would need to be placed 5 mm away from the ADuM1510
to affect the operation of the component.
Note that at combinations of strong magnetic field and high
frequency, any loops formed by PCB traces can induce
sufficiently large error voltages to trigger the thresholds of
succeeding circuitry. Care should be taken in the layout of such
traces to avoid this possibility.
POWER CONSUMPTION
The supply current at a given channel of the ADuM1510
isolator is a function of the supply voltage, the channel
data rate, and the channel output load.
For each input channel, the supply current is given by
For each output channel, the supply current is given by
where:
I
supply currents (mA).
I
per channel (mA/Mbps).
C
V
DDI (Q)
DDI (D)
L
DDO
is the output load capacitance (pF).
I
I
I
I
1000
is the output supply voltage (V).
0.01
DDI
DDI
DDO
DDO
, I
, I
100
0.1
10
1
DDO (Q)
DDO (D)
1k
= I
= I
= I
= (I
DISTANCE = 100mm
DDI (Q)
DDI (D)
DDO (Q)
DDO (D)
are the specified input and output quiescent
are the input and output dynamic supply currents
Figure 12. Maximum Allowable Current for
Various Current- to-ADuM1510 Spacings
× (2f − f
DISTANCE = 5mm
10k
+ C
MAGNETIC FIELD FREQUENCY (Hz)
L
V
r
DDO
) + I
100k
) × (2f − f
DDI (Q)
1M
r
) + I
DISTANCE = 1m
DDO (Q)
10M
100M
f ≤ 0.5f
f > 0.5f
f ≤ 0.5f
f ≤ 0.5f
Rev. A | Page 9 of 12
r
r
r
r
f is the input logic signal frequency (MHz, half of the input data
rate, NRZ signaling).
f
To calculate the total I
currents for each input and output channel corresponding to
I
provide per-channel supply currents as a function of the data
rate for an unloaded output condition. Figure 6 provides per-
channel supply current as a function of the data rate for a 15 pF
output condition. Figure 7 and Figure 8 provide total I
I
products.
POWER-UP/POWER-DOWN CONSIDERATIONS
Given that the ADuM1510 has separate supplies on each side of
the isolation barrier, the power-up and power-down charac-
teristics relative to each supply voltage need to be considered
individually.
As shown in Table 8, when V
ADuM1510 outputs take on a default low logic condition. As
the V
channel transitions from/to the default condition to/from the
state matching its respective signals (see Figure 13 and Figure 14).
When V
(approximately 2 V), there can be a delay of up to 2 μs before the
output is updated to the correct state, depending on the timing
of the next refresh pulse. When V
below the 2 V threshold, there can be a delay of up to 5 μs before
the output takes on its default low state. This corresponds to the
duration that the watchdog timer circuit at the input is designed
to wait before triggering an output default state.
r
DD1
DD2
Figure 13. V
Figure 14. V
is the input stage refresh rate (Mbps).
and I
supply current as a function of the data rate for ADuM1510
DD1
DD1
supply is increased or decreased, the output of each
DD2
DD1
DD1
crosses the threshold for activating the refresh circuit
(TYP)
are calculated and totaled. Figure 4 and Figure 5
Power-Up/Power-Down Characteristics, Input Data = High
Power-Up/Power-Down Characteristics, Input Data = Low
2V
OUTPUT DATA
OUTPUT
DATA
DD1
V
DD1
and I
V
DD1
DD1
DD2
input power is off, the
DD1
supply current, the supply
is reduced from an on state
ADuM1510
DD1
and