Automotive Primary Side
Flyback Controller
NCV1362
The NCV1362 is a highly integrated primary side quasi−resonant
flyback controller capable of controlling rugged and
high−performance off−line power supplies.
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.
www.onsemi.com
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The NCV1362 operates in valley lockout quasi−resonant peak
current mode control mode at high load to provide high efficiency.
When the power on the secondary side starts to diminish, the
controller automatically adjusts the duty−cycle then at lower load the
controller enters in pulse frequency modulation at fixed peak current
with a valley switching detection. This technique allows keeping the
output regulation with tiny dummy load. Valley lockout at the first 4
valleys prevent valley jumping operation and then a valley switching
at lower load provides high efficiency.
1
SOIC−8
CASE 751−07
MARKING DIAGRAM
8
V1362yy
ALYW
G
Features
1
• Qualified for Automotive Applications
IC (Pb−Free)
• AEC−Q100 Qualified with the Following Results
♦ Device Temperature Grade 1: −40°C to +125°C
♦ Device HBM Classification Level 2: 2 kV
• Constant Voltage Primary−Side Regulation < 5%
V1362yy = Specific Device Code
(See page 28)
A
L
Y
W
G
= Assembly Location
= Wafer Lot
• Constant Current Primary−Side Regulation < 5%
• LFF and BO Feature on a Dedicated Pin:
= Year
= Work Week
= Pb−Free Package
• Quasi−Resonant with Valley Switching Operation
• Optimized Light Load Efficiency and Stand−by Performance
• Maximum Frequency Clamp (No Clamp, 80, 110 and 140 kHz)
• Cycle by Cycle Peak Current Limit
PINOUT DIAGRAM
1
Vs/ZCD
BO/LFF
VCC
GND
• Output Voltage Under Voltage and Over Voltage Protection
COMP
Fault
CS
(UVP or OVP)
DRV
• Secondary Diode or Winding Short−Circuit Protection
(Top View)
• Wide Operation V Range (up to 28 V)
CC
• Low Start−up Current
• CS & V /ZCD Pin Short and Open Protection
S
ORDERING INFORMATION
See detailed ordering and shipping information on page 28 of
this data sheet.
• Internal Temperature Shutdown
• Internal and Fixed Frequency Jittering for Better EMI Signature
• Dual Frozen Peak Current to Both Optimize Light Load Efficiency
(10% Load) and Stand−by Performance (No−load)
• Fault Input for Severe Fault Conditions, NTC Compatible for OTP
• These are Pb−Free Devices
Applications
• Automotive Auxiliary Power Supplies
• On−Board Charger & Traction Inverters Auxiliary Power Supplies
© Semiconductor Components Industries, LLC, 2019
1
Publication Order Number:
June, 2021 − Rev. 4
NCV1362/D