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.

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: 1.225V

Compatible with DOSA

Low power operation: <7 mA total

Wide voltage supply range

VDD1: 3 V to 20V

VDD2: 3 V to 20V

Bandwidth: 400 kHz

Isolation voltage: 2.5 kVrms

Safety and regulatory approvals (pending)

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 = 560 V peak

Wide temperature range

−40°C to +125°C ambient operation

150°C maximum junction temperature

APPLICATIONS

Linear power supplies

Inverters

Uninterruptible PowerSupply (UPS)

DOSA-compatible modules

Voltage monitors