DAP018F – PWM Current-Mode Controller

DAP018F Datasheet PDF learn more.

Part number : DAP018F

Functions : This is a kind of semiconductor, PWM Current-Mode Controller.

Pin arrangement :

Package information :

Manufacturer : ON Semiconductor

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DAP018F Datasheet PDF

The texts in the PDF file :

Customer Specific Device from ON Semiconductor DAP018A/B/C/D/F PWM Current-Mode Controller for High-Power Universal Off-Line Supplies • Auto−recovery internal output short−circuit protection • • • • • • • • for A, B, C and D versions. F is latched Adjustable Timer for Improved Short−circuit Protection OTP and OVP Inputs for Improved Robustness +500 mA / −800 mA Peak Current Capability Up to 28 V VCC Operation Improved Creepage Distance between High−voltage and Adjacent Pin Extremely Low No−load Standby Power This is a Pb−Free Device This Device uses Halogen−Free Molding Compound Housed in a SO−14 package, the DAP018X represents an enhanced version of the currently available Speedking controller, the DAP011. With an internal structure operating at a fixed 65 kHz or 100 kHz frequency, the controller directly connects to the high−voltage rail for a lossless and clean startup sequence. Current−mode control also provides an excellent input audio−susceptibility and inherent pulse−by−pulse control. Internal ramp compensation easily prevents sub−harmonic oscillations from taking place in continuous conduction mode designs. On top of these features, the device takes advantage of the auxiliary winding negative swing to let the user adjust the maximum power the converter can deliver in high line conditions (OPP). When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically freezes the peak current and reduces its switching frequency down to 25 kHz. At this point, if further output power reduction occurs, the controller enters skip−cycle. The DAP018X features an efficient protective circuitry which, in presence of an overcurrent condition, disables the output pulses while the device enters a safe burst mode, trying to re−start. Once the fault has gone, the device auto−recovers. By implementing a timer to acknowledge a fault condition, independently from the auxiliary sup [ … ]

DAP018F PDF File

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