Extended Power, Design Flexible, ? EcoSmart, IntegratedOff-line SwitcherTOPSwitch-GX TOP242
TOP243
TOP244
TOP245
TOP246
TOP247
TOP248
TOP249
TOP250 uses the same proven topology as TOPSwitch,
cost effectively integrating the high voltage Power MOSFET
PWM control, fault protection and other control circuitry onto
a single CMOS chip. Many new functions are integrated to
reduce system cost and improve design ,exibility, performance
and energy ef,ciency.
Depending on package type, either 1 or 3 additional pins over
the TOPSwitch standard DRAIN, SOURCE and CONTROL
terminals allow the following functions: line sensing (OV/UV,
line feed-forward/DCMAX reduction), accurate externally set
current limit, remote ON/OFF, synchronization to an external
lower frequency, and frequency selection (132 kHz/66 kHz).
All package types provide the following transparent features:
Soft-start, 132 kHz switching frequency (automatically reduced
at light load), frequency jittering for lower EMI wider DCMAX,
hysteretic thermal shutdown, and larger creepage packages. In
addition, all critical parameters (i.e. current limit, frequency,
PWM gain) have tighter temperature and absolute tolerances
to simplify design and optimize system cost. By Power Integrations, Inc.
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TOP242 Pb-Free | TOP242 Cross Reference | TOP242 Schematic | TOP242 Distributor |
TOP242 Application Notes | TOP242 RoHS | TOP242 Circuits | TOP242 footprint |