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ADuM3190TRQZ データシート(PDF) 1 Page - Analog Devices

部品番号. ADuM3190TRQZ
部品情報  High Stability Isolated Error Amplifier
ダウンロード  19 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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ADuM3190TRQZ Datasheet(HTML) 1 Page - Analog Devices

 
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High Stability Isolated Error Amplifier
Data Sheet
ADuM3190
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringementsof patentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
©2013–2015 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
FEATURES
Stability in isolated feedback applications
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: 2.5 kV rms
Safety and regulatory approvals
UL recognition: 2500 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 = 565 V peak
Wide temperature range
−40°C to +125°C ambient operation
150°C maximum junction temperature
Qualified for automotive applications
APPLICATIONS
Linear power supplies
Inverters
Uninterruptible Power Supply (UPS)
DOSA-compatible modules
Voltage monitors
Automotive systems
GENERAL DESCRIPTION
The ADuM31901 is an isolated error amplifier based on Analog
Devices, Inc., iCoupler® technology. The ADuM3190 is ideal for
linear feedback power supplies. The primary side controllers of
the ADuM3190 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
ADuM3190 transfer function does not change over its lifetime,
and it is stable over a wide temperature range of −40°C to +125°C.
Included in the ADuM3190 is a wideband operational amplifier
for a variety of commonly used power supply loop compensation
techniques. The ADuM3190 is fast enough to allow a feedback
loop to react to fast transient conditions and overcurrent condi-
tions. Also included is a high accuracy 1.225 V reference to
compare with the supply output setpoint.
The ADuM3190 is packaged in a small 16-lead QSOP package
for a 2.5 kV rms isolation voltage rating.
FUNCTIONAL BLOCK DIAGRAM
Figure 1.
1 Protected by U.S. Patents 5,952,849, 6,873,065 and 7,075,329. Other patents pending.
1
2
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16
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9
Tx
Rx
REF
REF
REG
REG
UVLO
UVLO
COMP
GND2
GND1
–IN
+IN
REFOUT
VDD1
GND1
VREG1
VDD2
GND2
VREG2
REFOUT1
NC
EAOUT2
EAOUT


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