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reference designNCL30088

Onsemi NCL30088

Power Factor Corrected Quasi-Resonant Primary Side Current Mode Controller for LED Lighting

Overview

TopologyOther Topology
IC revision4

Description

The NCL30088 is an Ac-Dc power factor corrected flyback controller targeting isolated and non−isolated buck-boost/SEPIC constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal efficiency. Thanks to a novel control method, the device is able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact, space efficient designs.

Features

  • Quasi−resonant Peak Current−mode Control Operation
  • Constant Current Control with Primary Side Feedback
  • Tight LED Constant Current Regulation of ±2% Typical
  • Power Factor Correction
  • Line Feedforward for Enhanced Regulation Accuracy
  • Low Start−up Current (13 A typ.)
  • Wide Vcc Range
  • 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp

  • Robust Protection Features

    -OVP on VCC

    -Programmable Over Voltage / LED Open Circuit Protection

    -Cycle−by−cycle Peak Current Limit

    -Winding Short Circuit Protection

    -Secondary Diode Short Protection

    -Output Short Circuit Protection

    -Shorted Current Sense Protection

    -User Programmable NTC Based Thermal Foldback

    -Thermal Shutdown

    -Vcc Undervoltage Lockout

    -Brown−out Protection

  • Pb−Free, Halide−Free Product
  • Four Versions: NCL30088A, B, C and D (See Table 1)

Typical applications

  • Integrated LED Drive Electronics
  • LED Bulbs
  • LED Power Supply Drivers
  • LED Tubes
  • Electronic Control Gear for LED Systems
  • LED Light Engines

More information

Products

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L(µH)
IR(A)
ISAT,10%(A)
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fres(MHz)
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7447720222
SPECWE-TI Radial Leaded Wire Wound Inductor, 2200 µH, 0.29 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance2200 µH
Rated Current0.29 A
Saturation Current @ 10%0.35 A
DC Resistance4730 mΩ
Self Resonant Frequency1.1 MHz
VersionStandard 
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750342613
SPECFlyback Transformer, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Flyback Transformer
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