NCP1339 High-Voltage, Quasi- Resonant Controller featuring Valley Lock-Out and Power Saving Mode www.onsemi.com The NCP1339 is a highly integrated quasiresonant flyback controller capable of controlling rugged and highperformance offline power supplies as required by adapter applications. With an 14 integrated active Xcap discharge feature and power savings mode, 1 the NCP1339 can enable noload power consumption below 10 mW SOIC14 NB for 45 W notebook adapters. (LESS PIN 13) The quasiresonant currentmode flyback stage features a D SUFFIX proprietary valleylockout circuitry, ensuring stable valley switching. CASE 751AN th This system works down to the 6 valley and toggles to a frequency foldback mode to eliminate switching losses. When the loop tends to force below 25kHz frequencies, the NCP1339 skips cycles to contain MARKING DIAGRAM the power delivery. 14 To help build rugged converters, the controller features several key NCP1339xG protective features: an internal brownout, a nondissipative Over Power AWLYWW Protection for a constant maximum output current regardless of the 1 input voltage, a latched overvoltage protection through a dedicated pin. NCP1339 = Specific Device Code Features x = C, D, E, F, G, H, I or J Highvoltage Current Source for Lossless Startup Sequence A = Assembly Location X2 Capacitors Discharge Capability WL = Wafer Lot Y = Year Power Savings Mode (PSM) for Extremely Low NoLoad Power: WW = Work Week Wide V Range from 10 V to 28 V CC G = PbFree Package Latchingoff 28V V OverVoltage Protection CC Abnormal Overcurrent Fault Protection for Winding Short Circuit or Inductor Saturation Detection PIN CONNECTIONS Integrated HighVoltage Startup Circuit with BrownOut Detection X2 HV Fault Input for Severe Fault Conditions, NTC Compatible for OTP REM OPP NC Circuit Latching Off In Severe Fault Detection (OVP or OTP) ZCD NC Internal Temperature Shutdown Fault VCC Valley Switching Operation with ValleyLockout for NoiseFree FB DRV Operation CS GND Frequency Foldback for Highest Performance in Standby Mode (For C, D, E, F, G, and H versions) 25kHz Clamp and Skip Mode X2 HV TimerBased Overload Protection (Latched or AutoRecovery REM Options) OPP NC ZCD IFF Adjustable Overpower Protection Fault VCC 4ms SoftStart Timer FB DRV ZCD Blanking Time to Ignore Leakage Ringing at TurnOff: CS GND 3 s for C, D and E versions and 0.7 s for F, G, H, I and J versions (For I and J versions) Ready for HighDensity QR design (F, G, H, I and J versions) These Devices are PbFree and are RoHS Compliant ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 31 of this data sheet. Semiconductor Components Industries, LLC, 2017 1 Publication Order Number: February, 2017 Rev. 6 NCP1339/DNCP1339 PART NUMBER MATRIX Abnormal Adjustable Frozen Overload Overcurrent ZCD Blank- Jittering Peak Current Protection Fault ing Time Function (IFF pin) Device Version NCP1339CDR2G NCP1339C Autorecovery Autorecovery 3 s Disabled Disabled NCP1339DDR2G NCP1339D Latchingoff Latchingoff 3 s Disabled Disabled NCP1339EDR2G NCP1339E Latchingoff Latchingoff 3 s Enabled Disabled NCP1339FDR2G NCP1339F Latchingoff Latchingoff 0.7 s Enabled Disabled NCP1339GDR2G NCP1339G Autorecovery Autorecovery 0.7 s Enabled Disabled NCP1339HDR2G NCP1339H Autorecovery Autorecovery 0.7 s Disabled Disabled NCP1339IDR2G NCP1339I Latchingoff Latchingoff 0.7 s Enabled Enabled NCP1339JDR2G NCP1339J Autorecovery Autorecovery 0.7 s Enabled Enabled Vout Vaux GND PSM OFF NCP1339 X2 1 14 2 REM 13 3 12 N 4 EMI 11 Filter 5 10 Vcc 6 FB 9 L1 GND 7 8 CS Rsense Figure 1. NCP1339 Typical Application Circuit (without IFF pin) www.onsemi.com 2