IC reference design search
IC manufacturers Onsemi

IC manufacturers (105)

reference designNCL30488 | Demoboard AND90015

Onsemi NCL30488 | Demoboard AND90015

Overview

TopologyFlyback Converter
Input voltage90-320 V
Output 140 V / 0.5 A

Description

The NCL30488 [1] is a power factor corrected controllerwith primary side constant voltage (CV) and constantcurrent (CC) control suitable for flyback, buck−boost orSEPIC converters. The NCL30488 is housed in an SOIC 8package and targets high−performance LED drivers. Thesecontroller integrate a proprietary circuit for power factorcorrection and constant current control allowing to achievea power factor above 0.9 and total harmonic distortion below10% for universal mains input. This controller is normallyprimary side regulated, but the version (TBD) is compatiblewith secondary side regulation. In this version, the COMPpin features a pullup resistor to the internal reference voltagerail and allows directly connecting an optocoupler collectorto the pin. The current−mode, quasi−resonant architecture ofthis controller optimizes the efficiency by turning on theMOSFET when the drain−source voltage is minimal(valley). The valley lockout and frequency foldbackcircuitry maintain high−efficiency performance in in lightload during constant−voltage regulation.

Features

The circuit contains a set of powerfulprotections to ensure a robust LED driver design:

  • Output over voltage protection
  • Cycle−by−cycle peak current limit
  • Winding and output diode short circuit protection
  • Output short circuit protection
  • VCC pin over voltage protection
  • Floating/short pin detection: the circuit can detect most ofthese situations which is of great help to pass safety tests.

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
VR 2(V (DC))
dV/dt(V/µs)
DF @ 1 kHz(%)
RISO
Pitch(mm)
Packaging
L(mH)
IR(A)
ISAT,10%(A)
RDC max.(Ω)
fres(MHz)
Version
IR(A)
L1(mH)
RDC max.(Ω)
VR(V (DC))
VT(V (AC))
Material
L(mm)
W(mm)
H(mm)
Mount
VRMS(V)
VDC(V)
VBR(V)
IPeak(A)
Wmax(J)
PDiss(W)
VDE Approval
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
890303422005CS
SPECWCAP-FTBE Film Capacitors, 47 nF, 504 V (DC)
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-FTBE Film Capacitors
Capacitance47 nF
Rated Voltage 2504 V (DC)
Rate of Voltage Rise100 V/µs
Dissipation Factor1 %
Insulation Resistance9 GΩ
Pitch7.5 mm
PackagingCarton 
–
–
–
–
–
VersionTHT 
–
–
–
Rated Voltage630 V (DC)
–
–
Length10.5 mm
Width6 mm
Height12 mm
–
–
–
–
–
–
–
–
–Check availability
7446622002
SPECWE-LF Common Mode Power Line Choke, –, –
Simu­lation
Availability
–
Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LF Common Mode Power Line Choke
–
–
–
–
–
–
–
Inductance2.2 mH
Rated Current2 A
–
DC Resistance0.1 Ω
–
VersionTHT 
Rated Current2 A
Inductance [1]2.2 mH
DC Resistance [1]0.1 Ω
Rated Voltage250 V (DC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length18 mm
Width18 mm
Height13 mm
MountTHT 
–
–
–
–
–
–
VDE Approval40041042 
–Check availability
820474211
SPECWE-VD Disk Varistor, –, –
Simu­lation
Availability
–
Downloads7 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-VD Disk Varistor
–
–
–
–
–
–
–
–
–
–
–
–
VersionTHT 
–
–
–
–
–
–
Length9 mm
Width5.1 mm
Height13 mm
MountTHT 
AC Operating Voltage420 V
DC Operating Voltage560 V
(Reverse) Breakdown Voltage680 V
(Reverse) Peak Pulse Current1750 A
Energy Absorption56 J
Power Dissipation0.25 W
VDE ApprovalYes 
–Check availability
744779100
SPECWE-TI Radial Leaded Wire Wound Inductor, –, –
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
–
–
–
–
–
–
–
Inductance0.01 mH
Rated Current1.85 A
Saturation Current @ 10%2.5 A
DC Resistance0.05 Ω
Self Resonant Frequency28 MHz
VersionStandard 
–
–
–
–
–
–
Length6 mm
Width6 mm
Height6.5 mm
MountTHT 
–
–
–
–
–
–
–
–Check availability
750370980
SPECOffline Transformer, –, –
Simu­lation–
Availability
–
Downloads–
Status Activei| Production is active. Expected lifetime: >10 years.
Product series Offline Transformer
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–Check availability