Datasheet ADUM4190 (Analog Devices)

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High Stability Isolated Error Amplifier Data Sheet ADuM4190 FEATURES GENERAL DESCRIPTION Stable over time and temperature
The ADuM41901 is an isolated error amplifier based on Analog
0.5% initial accuracy
Devices, Inc., iCoupler® technology. The ADuM4190 is ideal for
1% accuracy over the full temperature range
linear feedback power supplies. The primary side controllers of
Compatible with Type II or Type III compensation networks
the ADuM4190 enable improvements in transient response, power
Reference voltage: 1.225 V
density, and stability as compared to commonly used optocoupler
Compatible with DOSA
and shunt regulator solutions.
Low power operation: <7 mA total
Unlike optocoupler-based solutions, which have an uncertain
Wide voltage supply range
current transfer ratio over lifetime and at high temperatures, the
VDD1: 3 V to 20 V
ADuM4190 transfer function does not change over its lifetime
VDD2: 3 V to 20 V
and is stable over a wide temperature range of −40°C to +125°C.
Bandwidth: 400 kHz Isolation voltage: 5 kV rms reinforced
Included in the ADuM4190 is a wideband operational amplifier
Safety and regulatory approvals ( pending)
for a variety of commonly used power supply loop compensation
UL recognition: 5000 V rms for 1 minute per UL 1577
techniques. The ADuM4190 is fast enough to allow a feedback loop
CSA Component Acceptance Notice #5A
to react to fast transient conditions and overcurrent conditions.
VDE certificate of conformity
Also included is a high accuracy 1.225 V reference to compare
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
with the supply output setpoint.
VIORM = 849 V peak
The ADuM4190 is packaged in a wide body, 16-lead SOIC package
Wide temperature range
for a reinforced 5 kV rms isolation voltage rating.
−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 FUNCTIONAL BLOCK DIAGRAM V 1 16 DD1 VDD2 GND 2 15 1 GND2 VREG1 3 REG UVLO UVLO REG 14 VREG2 REFOUT1 4 REF REF 13 REFOUT NC 5 12 +IN Tx EAOUT2 6 11 –IN Rx EAOUT 7 10 COMP
001
GND 8 9 1 ADuM4190 GND2
1336- 1 Figure 1. 1 Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329. Other patents pending.
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Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Package Characteristics Regulatory Information Insulation and Safety Related Specifications Recommended Operating Conditions DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 Insulation Characteristics Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuits Applications Information Accuracy Circuit Operation Isolated Amplifier Circuit Operation Application Block Diagram Setting the Output Voltage DOSA Module Application DC Correctness and Magnetic Field Immunity Insulation Lifetime Outline Dimensions Ordering Guide