adum3471 Analog Devices, Inc., adum3471 Datasheet - Page 5

• Manufacturer Part Number: adum3471
• Description: Pwm Controller And Transformer Driver With Quad-channel Isolators Adum3470/adum3471/adum3472/adum3473/adum3474
• Manufacturer: Analog Devices, Inc.

ELECTRICAL CHARACTERISTICS—3.3 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
3.0 V ≤ (V
application schematic in Figure 38. All minimum/maximum specifications apply over the entire recommended operating range, unless
otherwise noted. All typical specifications are at T
Table 2.
Parameter
DC-TO-DC CONVERTER POWER SUPPLY
iCoupler DATA CHANNELS
Isolated Output Voltage
Feedback Voltage Setpoint
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
Switch On-Resistance
Undervoltage Lockout, V
DC to 2 Mbps Data Rate
25 Mbps Data Rate (CRWZ Grade Only)
I/O Input Currents
Logic High Input Threshold
Logic Low Input Threshold
Positive Going Threshold
Negative Going Threshold
Hysteresis
Maximum Output Supply Current
Efficiency at Maximum Output
I
I
Available V
I
CC
CC
CC
ADuM3470
ADuM3471
ADuM3472
ADuM3473
ADuM3474
ADuM3470
ADuM3471
ADuM3472
ADuM3473
ADuM3474
ADuM3470
ADuM3471
ADuM3472
ADuM3473
ADuM3474
Supply Current, No V
Supply Current, No V
Supply Current, Full V
Supply Current
DD1
= V
ISO
DDA
Supply Current
) ≤ 3.6 V; V
3
CC
1
, V
ISO
ISO
ISO
DD2
Load
Load
Load
Supplies
DD2
4
= V
2
REG
=V
Symbol
V
V
V
V
V
V
f
R
V
V
V
I
I
I
I
I
I
V
V
ISO (MAX)
CC (Q)
CC (D)
ISO (LOAD)
CC (MAX)
IA
SW
ISO
FB
ISO (LINE)
ISO (LOAD)
ISO (RIP)
ISO (N)
ON
UV+
UV−
UVH
IH
IL
, I
ISO
IB
, I
= 3.3 V; f
IC
ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474
, I
A
ID
= 25°C, V
Min
3.0
1.15
192
250
−10
1.6
SW
= 500 kHz; all voltages are relative to their respective grounds; see the
DD1
Rev. 0 | Page 5 of 32
= V
DDA
= 3.3 V, V
Typ
3.3
1.25
1
1
50
100
1000
200
318
0.6
2.8
2.6
0.2
70
9
10
11
11
12
28
29
31
32
34
244
243
241
240
238
350
+0.01
DD2
Max
3.6
1.35
10
2
515
20
20
20
20
20
+10
0.4
= V
REG
Unit
V
V
mV/V
%
mV p-p
mV p-p
kHz
kHz
kHz
Ω
V
V
V
mA
%
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
μA
V
V
= V
ISO
= 3.3 V.
Test Conditions/Comments
I
I
I
I
20 MHz bandwidth,
C
20 MHz bandwidth,
C
R
R
V
f ≤ 1 MHz, V
I
I
I
I
I
I
I
C
C
C
C
C
C
I
ISO
ISO
ISO
ISO
ISO
ISO
ISO
ISO
ISO
ISO
ISO
ISO
OUT
OUT
OC
OC
OC
L
L
L
L
L
L
= 0 pF, f = 0 MHz, V
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
= 250 mA
= 0 mA, V
= 0 mA
= 50 mA, V
= 20 mA to 100 mA
= I
= 0 mA, f ≤ 1 MHz
= 0 mA, C
= 0 mA, C
= 0 mA, C
= 0 mA, C
= 0 mA, C
= 50 kΩ
= 270 kΩ
= V
= 0.1 μF||47 μF, I
= 0.1 μF||47 μF, I
ISO (MAX)
DD2
(open loop)
, f ≤ 1 MHz
ISO
ISO
L
L
L
L
L
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
= 15 pF, f = 12.5 MHz
CC
= 3.3 V
= V
= 3.0 V to 3.6 V
FB
ISO
ISO
× (R1 + R2)/R2
DD
= 100 mA
= 100 mA
= 3.3 V,