ADUM3470 AD [Analog Devices], ADUM3470 Datasheet - Page 7
![no-image](/images/no-image-200.jpg)
ADUM3470
Manufacturer Part Number
ADUM3470
Description
PWM Controller and Transformer Driver with Quad-Channel Isolators
Manufacturer
AD [Analog Devices]
Datasheet
1.ADUM3470.pdf
(32 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADUM3470ARSZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
4.5 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 3.
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
Supply Current
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
DD1
= V
ISO
Supply Current
DDA
) ≤ 5.5 V; V
3
CC
1
, V
ISO
ISO
ISO
DD2
Load
Load
Load
Supplies
4
DD2
= V
2
A
= 25°C, V
REG
= V
Symbol
V
V
V
V
V
V
f
R
V
V
V
I
I
I
I
I
I
V
V
SW
ISO (MAX)
CC (Q)
CC (D)
ISO (LOAD)
CC (MAX)
IA
ISO
FB
ISO (LINE)
ISO (LOAD)
ISO (RIP)
ISO (N)
ON
UV+
UV−
UVH
IH
IL
, I
ISO
IB
, I
ADuM3470/ADuM3471/ADuM3472/ADuM3473/ADuM3474
DD1
= 3.3 V; f
IC
, I
ID
= V
DDA
Min
3.0
1.15
209
400
−20
2.0
SW
= 5.0 V, V
Rev. 0 | Page 7 of 32
= 500 kHz; all voltages are relative to their respective grounds; see the
DD2
= V
Typ
3.3
1.25
1
1
50
100
1000
200
318
0.5
2.8
2.6
0.2
70
9
9
10
10
10
33
33
33
33
33
393
392
390
389
388
375
+0.01
REG
= V
ISO
Max
3.6
1.35
10
2
515
30
30
30
30
30
+20
0.8
= 3.3 V.
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
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
OC
OC
OC
L
OUT
OUT
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
= 400 mA
= 0 mA, V
= 0 mA
= 50 mA, V
= 50 mA to 200 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
CC
= 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
= 3.3 V
= V
= 4.5 V to 5.5 V
FB
DD
× (R1 + R2)/R2
ISO
ISO
= 5 V,
= 100 mA
= 100 mA