UG-534 Datasheet, PDF (1/8 Pages) Analog Devices – Isolated error amplifier

Evaluation Board User Guide
UG-534
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iCoupler ADuM3190 Isolated Error Amplifier Evaluation Board
FEATURES
Isolated error amplifier
Stable over time and temperature
0.5% initial accuracy
1% accuracy over the full temperature range
For Type II or Type III compensation networks
Reference voltage: 1.225 V
Low power operation: <7 mA total
Wide supply voltage range
VDD1: 3 V to 20 V
VDD2: 3 V to 20 V
Bandwidth: 400 kHz
Isolation voltage: 2.5 kV rms
Wide temperature range
−40°C to +125°C ambient operation
150°C maximum junction temperature
GENERAL DESCRIPTION
The EVAL-ADuM3190EBZ supports the ADuM3190 isolated
error amplifier based on Analog Devices, Inc., iCoupler®
technology. The ADuM3190 is ideal for linear feedback
power supplies with primary side controllers enabling
improvements in transient response, power density, and
stability as compared to commonly used optocoupler and
shunt regulator solutions. Included in the ADuM3190 is a
wideband operational amplifier that can be used to set up
a variety of commonly used power supply loop compensa-
tion techniques. The ADuM3190 is fast enough to allow a
feedback loop to react to fast transient conditions and over
current conditions. Also included is a high accuracy 1.225 V
reference to compare with the supply output set point.
Complete specifications for the ADuM3190 are provided in the
ADuM3190 data sheet available from Analog Devices, Inc., and
should be consulted in conjunction with this user guide when
using the evaluation board.
EVALUATION BOARD
Figure 1. EVAL-ADuM3190EBZ
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
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