IC manufacturers Onsemi

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Onsemi NCL30188 | Demoboard NCL30188FLYGEVB

Power Factor Corrected uasi-Resonant Primary side Current-Mode Controller for LED Lighting with Thermal Foldback

Overview

TopologyOther Topology

Description

The NCL30188FLYGEVB Evaluation Board 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
  • Latching−off (NCL30188A) or 4−s Auto−recovery(NCL30188B) Protection Modes

Typical applications

  • Integral LED Bulbs and Tubes
  • LED Drivers/Power Supplies
  • LED Drivers/Power Supplies
  • LED Light Engines

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples
7447462152SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI Radial Leaded Wire Wound Inductor 1500 0.19 0.2 8 1.8 Heat Shrinking Tube
7508112342SPEC
Active i| Production is active. Expected lifetime: >10 years. Offline Transformer, WE-UNIT
Order Code Data­sheet Simu­lation
7447462152SPEC
7508112342SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples