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ADuM3190ARQZ-RL7 Datasheet(PDF) 1 Page - Analog Devices |
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ADuM3190ARQZ-RL7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 19 page 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 3 4 5 6 7 8 16 15 14 13 12 11 10 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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