Timer−Based Transient Power and Overload
Protections with Auto−Recovery (Option B) or Latched
(Option A) Operation
• High−Voltage Current Source with DSS with Built−in
Brown−out and Line Overvoltage Protections
• Fixed−Frequency Current−Mode Operation with
Built−in Ramp Compensation
• Frequency Jittering for a Reduced EMI Signature
• Adjustable Overpower Compensation
• Latch−off Input for Severe Fault Conditions, with
Direct Connection of an NTC for Overtemperature
Protection (OTP)
• Protection Against Winding Short−Circuit
• Frequency Foldback transitioning into Soft−Skip for
Improved Performance in Standby

65 kHz Oscillator (100 kHz and 133 kHz Versions
Available Upon Request)
• VCC Operation up to 28 V
• Increased Precision on Critical Parameters
• ±1.0 A Peak Drive Capability
• 4.0 ms Soft−Start
• Internal Thermal Shutdown with Hysteresis
• These Devices are Pb−Free, Halogen Free/BFR Free
and are RoHS Compliant*
Typical Applications
• ac−dc Adapters for Notebooks, LCD, and Printers
• Offline Battery Chargers
• Consumer Electronic Power Supplies
• Auxiliary/Housekeeping Power Supplies