The JW3510 is a micropower isolated Flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage can be programmed with a single external resistor. Besides, internal compensation and soft-start further reduce external component count.

The JW3510 operates with an input voltage range of 3.0V to 42V and can deliver up to 6W of isolated output power. The primary-side can deliver 1.4A peak current with an internal integrated 65V N-Channel DMOS power switch.

The JW3510 is designed with boundary mode, discontinuous mode and burst mode operation at different load to improve load regulation and maintain high efficiency while minimizing the output voltage ripple.

JW3510 is available in the SOT23-5 package. The high level of integration results in a simple to use, low component count, and high efficiency application solution for isolated power delivery.

FEATURES


3.0V to 42V Operating Input Range


1.4A, 65V Internal DMOS Power Switch


Up to 430KHz Operating Frequency


Low Quiescent Current


Boundary Mode Operation at Heavy Load


Burst Mode Operation at Light Load


VOUT Set with a Single External Resistor


Minimum Load<0.5% (Typ) of Full Output


No Transformer Third Winding or OptoIsolator Required for Regulation


Internal Compensation and Soft-Start


Input under voltage lockout


Output Short-Circuit Protection


Thermal Protection


SOT23-5 Package

APPLICATIONS


Isolated Telecom, Automotive, Industrial,

Housekeeping Power Supplies


Isolated Auxiliary Power Supplies


Wide Input Voltage Range Micropower system.