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ADuM4190 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADuM4190
Beschreibung High Stability Isolated Error Amplifier
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 21 Seiten
ADuM4190 Datasheet, Funktion
Data Sheet
High Stability Isolated Error Amplifier
ADuM4190
FEATURES
Stable over time and temperature
0.5% initial accuracy
1% accuracy over the full temperature range
Compatible with Type II or Type III compensation networks
Reference voltage: 1.225 V
Compatible with DOSA
Low power operation: <7 mA total
Wide voltage supply range
VDD1: 3 V to 20 V
VDD2: 3 V to 20 V
Bandwidth: 400 kHz
Isolation voltage: 5 kV rms reinforced
Safety and regulatory approvals (pending)
UL recognition: 5000 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 849 V peak
Wide temperature range
−40°C to +125°C ambient operation
150°C maximum junction temperature
APPLICATIONS
Linear feedback power supplies
Inverters
Uninterruptible power supplies (UPS)
DOSA-compatible modules
Voltage monitors
GENERAL DESCRIPTION
The ADuM41901 is an isolated error amplifier based on Analog
Devices, Inc., iCoupler® technology. The ADuM4190 is ideal for
linear feedback power supplies. The primary side controllers of
the ADuM4190 enable improvements in transient response, power
density, and stability as compared to commonly used optocoupler
and shunt regulator solutions.
Unlike optocoupler-based solutions, which have an uncertain
current transfer ratio over lifetime and at high temperatures, the
ADuM4190 transfer function does not change over its lifetime
and is stable over a wide temperature range of −40°C to +125°C.
Included in the ADuM4190 is a wideband operational amplifier
for a variety of commonly used power supply loop compensation
techniques. The ADuM4190 is fast enough to allow a feedback loop
to react to fast transient conditions and overcurrent conditions.
Also included is a high accuracy 1.225 V reference to compare
with the supply output setpoint.
The ADuM4190 is packaged in a wide body, 16-lead SOIC package
for a reinforced 5 kV rms isolation voltage rating.
FUNCTIONAL BLOCK DIAGRAM
VDD1 1
GND1 2
VREG1 3
REFOUT1 4
NC 5
EAOUT2 6
EAOUT 7
GND1 8
REG UVLO
REF
Rx
UVLO REG
REF
Tx
Figure 1.
ADuM4190
16 VDD2
15 GND2
14 VREG2
13 REFOUT
12 +IN
11 –IN
10 COMP
9 GND2
1 Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329. Other patents pending.
Rev. 0
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responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com






ADuM4190 Datasheet, Funktion
Data Sheet
ADuM4190
RECOMMENDED OPERATING CONDITIONS
Table 5.
Parameter
OPERATING TEMPERATURE
ADuM4190A/ADuM4190B
ADuM4190S/ADuM4190T
SUPPLY VOLTAGES1
INPUT SIGNAL RISE AND FALL TIMES
Symbol
TA
VDD1, VDD2
tR, tF
1 All voltages are relative to their respective grounds.
Min
−40
−40
3.0
Max
+85
+125
20
1.0
Unit
°C
°C
V
ms
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 INSULATION CHARACTERISTICS
This isolator is suitable for reinforced isolation only within the safety limit data. Maintenance of the safety data is ensured by protective
circuits. The asterisk (*) marking branded on the component designates DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 approval for
an 849 V peak working voltage.
Table 6.
Description
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150 V rms
For Rated Mains Voltage ≤ 300 V rms
For Rated Mains Voltage ≤ 400 V rms
Climatic Classification
Pollution Degree per DIN VDE 0110, Table 1
Maximum Working Insulation Voltage
Input-to-Output Test Voltage, Method B1
Input-to-Output Test Voltage, Method A
After Environmental Tests Subgroup 1
After Input and/or Safety Tests Subgroup 2
and Subgroup 3
Highest Allowable Overvoltage
Surge Isolation Voltage
Safety Limiting Values
Maximum Junction Temperature
Safety Total Dissipated Power
Insulation Resistance at TS
Test Conditions/Comments
VIORM × 1.875 = Vpd(m), 100% production test,
tini = 60 sec, tm = 10 sec, partial discharge < 5 pC
VIORM × 1.5 = Vpd(m), tini = 60 sec, tm = 10 sec, partial
discharge < 5 pC
VIORM × 1.2 = Vpd(m), tini = 60 sec, tm = 10 sec, partial
discharge < 5 pC
V peak = 10 kV; 1.2 µs rise time; 50 µs, 50% fall time
Maximum value allowed in the event of a failure
(see Figure 2)
VIO = 500 V
Symbol
VIORM
Vpd(m)
Vpd(m)
Vpd(m)
VIOTM
VIOSM
TS
PS
RS
Characteristic Unit
I to IV
I to III
I to II
40/105/21
2
849
1592
V peak
V peak
1273
1018
6000
6000
V peak
V peak
V peak
V peak
150
2.78
>109
°C
W
3.0
2.5
2.0
1.5
1.0
0.5
0
0 50 100 150 200
AMBIENT TEMPERATURE (°C)
Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values
on Case Temperature, per DIN V VDE V 0884-10
Rev. 0 | Page 5 of 20

6 Page









ADuM4190 pdf, datenblatt
Data Sheet
30
25
20
15
10
5
0
1.215
1.220
1.225
1.230
1.235
EAOUT ACCURACY (V)
Figure 22. EAOUT Accuracy Voltage Distribution at 25°C
30
25
20
15
10
5
0
1.215
1.220
1.225
1.230
1.235
EAOUT ACCURACY (V)
Figure 23. EAOUT Accuracy Voltage Distribution at 125°C
30
25
20
15
10
5
0
1.215
1.220
1.225
1.230
1.235
EAOUT ACCURACY (V)
Figure 24. EAOUT Accuracy Voltage Distribution at −40°C
ADuM4190
1
2
3
CH1 100mV CH2 100mV
CH3 200mV
M2µs
T 0s
A CH1 434mV
Figure 25. Output 100 kHz Signal with Test Circuit 3, Channel 1 = +IN,
Channel 2 = EAOUT, Channel 3 = EAOUT2
2
1
3
CH1 20mV CH2 50mV M2µs
A CH1 399mV
CH3 20mV
T 5.92µs
Figure 26. Output Square Wave Response with Test Circuit 3,
Channel 1 = +IN, Channel 2 = EAOUT, Channel 3 = EAOUT2
Rev. 0 | Page 11 of 20

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