Automotive Primary Side Flyback Controller NCV1362 The NCV1362 is a highly integrated primary side quasiresonant flyback controller capable of controlling rugged and highperformance offline power supplies. www.onsemi.com Thanks to a Novel Method this new controller saves the secondary feedback circuitry for Constant Voltage and Constant Current regulation, achieving excellent line and load regulation without traditional opto coupler and TL431 voltage reference. 8 The NCV1362 operates in valley lockout quasiresonant peak 1 current mode control mode at high load to provide high efficiency. SOIC8 When the power on the secondary side starts to diminish, the CASE 75107 controller automatically adjusts the dutycycle then at lower load the controller enters in pulse frequency modulation at fixed peak current MARKING DIAGRAM with a valley switching detection. This technique allows keeping the output regulation with tiny dummy load. Valley lockout at the first 4 8 valleys prevent valley jumping operation and then a valley switching V1362yy at lower load provides high efficiency. ALYW Features 1 Qualified for Automotive Applications IC (PbFree) AECQ100 Qualified with the Following Results V1362yy = Specific Device Code Device Temperature Grade 1: 40C to +125C (See page 28) Device HBM Classification Level 2: 2 kV A = Assembly Location Constant Voltage PrimarySide Regulation < 5% L = Wafer Lot Y = Year Constant Current PrimarySide Regulation < 5% W = Work Week LFF and BO Feature on a Dedicated Pin: = PbFree Package QuasiResonant with Valley Switching Operation Optimized Light Load Efficiency and Standby Performance PINOUT DIAGRAM Maximum Frequency Clamp (No Clamp, 80, 110 and 140 kHz) 1 Cycle by Cycle Peak Current Limit Vs/ZCD BO/LFF COMP VCC Output Voltage Under Voltage and Over Voltage Protection Fault GND (UVP or OVP) CS DRV Secondary Diode or Winding ShortCircuit Protection (Top View) Wide Operation V Range (up to 28 V) CC Low Startup Current ORDERING INFORMATION CS & V /ZCD Pin Short and Open Protection S See detailed ordering and shipping information on page 28 of Internal Temperature Shutdown this data sheet. Internal and Fixed Frequency Jittering for Better EMI Signature Dual Frozen Peak Current to Both Optimize Light Load Efficiency (10% Load) and Standby Performance (Noload) Fault Input for Severe Fault Conditions, NTC Compatible for OTP These are PbFree Devices Applications Automotive Auxiliary Power Supplies OnBoard Charger & Traction Inverters Auxiliary Power Supplies Semiconductor Components Industries, LLC, 2019 1 Publication Order Number: July, 2021 Rev. 5 NCV1362/DNCV1362 2 0 Ac Out Ac 3 0 5 4 1 RTN Out NCV1362 1 8 VS/ZCD BO/LFF 2 7 COMP VCC 3 6 Fault GND 2 4 5 CS DRV 0 Figure 1. NCV1362 Typical Application Schematic for AC Input Voltage 2 0 Dc+ Out Dc 3 0 5 4 1 RTN Out NCV1362 1 8 VS/ZCD BO/LFF 2 7 COMP VCC 3 6 Fault GND 2 4 5 CS DRV 0 Figure 2. NCV1362 Typical Application Schematic for DC Input Voltage www.onsemi.com 2 1 3 1 3