ADUM3070 AD [Analog Devices], ADUM3070 Datasheet - Page 4

• Manufacturer Part Number: ADUM3070
• Description: Isolated Switching Regulator
• Manufacturer: AD [Analog Devices]

ADuM3070
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY
4.5 V ≤ V
schematic in Figure 31. All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All
typical specifications are at T
Table 3. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
1
2
ELECTRICAL CHARACTERISTICS—5 V PRIMARY INPUT SUPPLY/15 V SECONDARY ISOLATED SUPPLY
4.5 V ≤ V
application schematic in Figure 32. All minimum/maximum specifications apply over the entire recommended operating range, unless
otherwise noted. All typical specifications are at T
Table 4. DC-to-DC Converter Static Specifications
Parameter
DC-TO-DC CONVERTER SUPPLY
1
2
V
V
V
V
DD1
DDA
DD1
DDA
Isolated Output Voltage
Feedback Voltage Setpoint
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
I
Switch On Resistance
Maximum Output Supply Current
Efficiency at Maximum Output Current
Isolated Output Voltage
Feedback Voltage Setpoint
V
Line Regulation
Load Regulation
Output Ripple
Output Noise
Switching Frequency
I
Switch On Resistance
Maximum Output Supply Current
Efficiency at Maximum Output Current
DDA
DDA
DD2
is the power supply for the push-pull transformer.
is the power supply for the push-pull transformer.
is the power supply of Side 1 of the ADuM3070.
Dropout Voltage
is the power supply of Side 1 of the ADuM3070.
Quiescent
Quiescent
Linear Regulator Voltage
DD1
DD1
= V
= V
DDA
DDA
≤ 5.5 V, V
≤ 5.5 V, V
A
= 25°C, V
DD2
REG
= V
= V
REG
ISO
DD1
= 15 V, V
= V
Symbol
V
V
V
V
V
V
f
I
R
I
Symbol
V
V
V
V
V
V
V
V
f
I
R
I
= V
DDA (Q)
ISO (MAX)
DDA (Q)
ISO (MAX)
SW
SW
ISO
FB
ISO (LINE)
ISO (LOAD)
ISO (RIP)
ISO (NOISE)
ON
ISO
FB
DD2
DD2DO
ISO (LINE)
ISO (LOAD)
ISO (RIP)
ISO (NOISE)
ON
ISO
DDA
= 3.3 V, f
DD2
A
= 5.0 V, V
= 25°C, V
= 5.0 V, f
Min
3.0
1.15
209
400
Min
13.8
1.15
4.5
192
100
SW
= 500 kHz, all voltages are relative to their respective grounds, see the application
DD2
Rev. 0 | Page 4 of 20
Typ
3.3
1.25
1
1
50
100
1000
200
318
3.5
0.5
500
70
Typ
15.0
1.25
5.0
0.5
1
1
200
500
1000
200
318
3.5
0.5
140
70
DD1
SW
= V
= 500 kHz, all voltages are relative to their respective grounds, see the
= V
REG
Max
3.63
1.37
10
2
515
5
DDA
Max
16.5
1.37
5.48
1.5
10
3
515
5
= V
= 5.0 V, V
ISO
Unit
V
V
mV/V
%
mV p-p
mV p-p
kHz
kHz
kHz
mA
Ω
mA
%
Unit
V
V
V
V
mV/V
%
mV p-p
mV p-p
kHz
kHz
kHz
mA
Ω
mA
%
= 3.3 V.
REG
= V
Test Conditions/Comments
I
I
I
I
20 MHz bandwidth, C
20 MHz bandwidth, C
R
R
V
f ≤ 1 MHz, V
I
Test Conditions/Comments
I
I
V
I
I
I
20 MHz bandwidth, C
20 MHz bandwidth, C
R
R
V
f ≤ 1 MHz, V
I
ISO
ISO
ISO
ISO
ISO
ISO
ISO
DD2
ISO
ISO
ISO
OC
OC
OC
OC
OC
REG
OC
ISO
= 0 mA, V
= 0 mA
= 50 mA, V
= 50 mA to 200 mA
= I
= 0 mA, V
= 0 mA
= 50 mA, V
= 20 mA to 100 mA
= I
= 50 kΩ
= 270 kΩ
= V
= 50 kΩ
= 270 kΩ
= V
= 50 mA
= 7 V to 15 V, I
ISO (MAX)
= 15 V, V
ISO (MAX)
DD2
DD2
(open-loop)
(open-loop)
ISO
, f ≤ 1 MHz
ISO
, f ≤ 1 MHz
ISO
ISO
DD1
DD1
= 3.3 V
= 15.0 V
= V
DD2
= V
1
1
= V
= V
DD2
FB
FB
= 5.0 V.
× (R1 + R2)/R2
OUT
OUT
× (R1 + R2)/R2
OUT
OUT
DDA
= 0 mA to 50 mA
DDA
= 0.1 µF||47 µF, I
= 0.1 µF||47 µF, I
= 0.1 µF||47 µF, I
= 0.1 µF||47 µF, I
2
2
= 4.5 V to 5.5V
= 4.5 V to 5.5 V
Data Sheet
ISO
ISO
ISO
ISO
= 100 mA
= 100 mA
= 100 mA
= 100 mA