ADUM4070 Datasheet | Analog Devices

Data Sheet Features Isolated PWM feedback with built-in pensation Primary side transformer driver for up to 2.5 W output power with 5 V input voltage Regulated adjustable output: 3.3 V to 24 V Up to 70% efficiency 200 k Hz to 1 MHz adjustable oscillator Soft start function at power-up Pulse-by-pulse overcurrent protection Thermal shutdown 5000 V rms isolation High mon-mode transient immunity: >25 k V/μs 16-lead SOIC package with 8.3 mm creepage High temperature operation: 105°C maximum Safety and regulatory approvals (pending) UL recognition: 5000 V rms for 1 minute per UL 1577 CSA ponent Acceptance Notice #5A VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 849 V peak Isolated Switching Regulator with Integrated Feedback ADu M4070 FUNCTIONAL BLOCK DIAGRAM VDD1 RECTIFIER X1 X2 VREG VISO ADu M4070 REGULATOR VDD2 5V VDDA PRIMARY CONTROLLER/ DRIVER INTERNAL FEEDBACK GND1 GND2 SECONDARY CONTROLLER FB OC 10461-001 Datasheet pdf - http://..co.kr/ Figure 1. APPLICATIONS Power supply start-up bias and gate drives Isolated sensor interfaces Process controls .Data Sheet.net/ GENERAL DESCRIPTION The ADu M40701 is a regulated dc-to-dc isolated power supply controller with an internal MOSFET driver. The dc-to-dc controller has internal isolated PWM feedback from the secondary side based on the i Coupler® chip scale transformer technology and plete loop pensation. This architecture eliminates the need to use an optocoupler for feedback and pensates the loop for stability. The ADu M4070 isolator provides a more stable output voltage and higher efficiency pared to unregulated isolated dc-to-dc power supplies. The fully integrated feedback and loop pensation in a wide-body SOIC package provide a solution with a smaller form factor and 8.3 mm creepage distance. The regulated feedback provides a relatively flat efficiency curve over the full output power range. The ADu M4070 enables a dc-todc converter with a 3.3...