Home > Led Driver > Led Driver Ic With Pfc

Led Driver Ic With Pfc

Contents

Qty: OK Cancel Get to Know Us About Richtek News Release Find Products SwitchingRegulators Motherboard Parametric Search Cross Reference Get Support Technical Documents Design Tools Contact Us My Richtek My Profile By using Primary Side Regulation (PSR), the RT7302 controls the output current accurately without a shunt regulator and an opto-coupler at the secondary side, reducing the external component count, the cost, Technical Support Home> Products> Product Taxonomy> LED Drivers> AC-DC LED Drivers> FL7701 The document you are trying to download is gated.Log into MyON to proceed. The controller disables the bleeder circuit completely if no dimmer is detected, significantly increasing efficiency. The combination of a low-side switching topology, cooling via electronically quiet SOURCE pins and frequency jitter ensure

FL7701:LED Driver, Non-Isolated PFC Buck Datasheet: FL7701 — Smart LED Lamp Driver IC with PFC function Rev. Applications AC/DC LED Lighting driver AC/CC isolation AC/CC non-isolation Key Spec. & Features Documents Reference Design Design Tools Ordering Information Key Spec. The output current can be modulated by the duty ratio of the external PWM dimming signal. Qty: OK Cancel Get to Know Us About Richtek News Release Find Products SwitchingRegulators Motherboard Parametric Search Cross Reference Get Support Technical Documents Design Tools Contact Us My Richtek My Profile http://www.electronicproducts.com/Analog_Mixed_Signal_ICs/Drivers_Displays_LED_etc_/LED_driver_IC_includes_combined_PFC_and_constant_current_output.aspx

Led Driver Achieves 0.95 Power Factor

This reduces the size of the input filter components – greatly reducing audible noise during dimming.  Learn more about Power Integrations Related Articles Precision PWM dimming LED driver reference design RT7302 Status Active Supply Voltage (min) (V) Supply Voltage (max) (V) Vin (min) (V) 12 Vin (max) (V) 25 Topology Buck-Boost;Flyback Output C.C. Go Clear List Design Support Technical Documentation Design Resources & Documents Technical Support Sales Support Privacy Policy | Terms of Use | Site Map | Careers | Contact Us | Terms

  • Howerver:I would like to use 2x 3 power leds in serie in parallel, each led with If = 350mA en Vf =3.2-3.5 VCan I just use the 2x parallel 3 leds
  • If you want more, look at my Instructable on LED circuits to see how the circuit needs to change.
  • With 24v in I think that would be 6, is that right?
  • I think I may source a 150 Watt supply for the final build, or further experiment with the driver circuits.
  • As a simple project, i've built the driver circuit and connected it to a high-power LED and a power-brick, making a plug-in light.
  • I'm dimming 4 - 3 watt LED's.
  • Report comment Reply calipsoii says: August 30, 2012 at 7:22 am "Crazy amounts of heat and power" 9A LED driver: http://www.candlepowerforums.com/vb/showthread.php?276105-High-efficient-5A-9A-Buck-Converter-for-SST-50-SST-90 13A LED/Incan driver: http://www.candlepowerforums.com/vb/showthread.php?341438-SALE-JM-PhD-D1-PWM-Hotwire-Regulator-BATCH-2 40A 700W incan driver: http://www.candlepowerforums.com/vb/showthread.php?295756-Pre-Order-JM-PhD-X1-PWM-Lantern-Regulator Report

Add Comment Text Only 2000 character limit Please login to comment on the article AspenCore Network: EBN | EE Times | Electronic Products | Embedded | ElectroSchematics | Power Electronics News Example: "npn -pnp" Search Exactly As Is ( + ) - Results contain the exact term immediately following it (do not add a space after the +). All Rights Reserved. RT7304 Status Active Supply Voltage (min) (V) Supply Voltage (max) (V) Vin (min) (V) 12 Vin (max) (V) 25 Topology Buck-Boost;Flyback Output C.C.

The special “adopted digital” technique of the IC can automatically detect input voltage condition and send an internal reference signal for achieving high power factor. Lm3450 MOSFET Integrated No PFC Y Current Sense Threshold (mV) Dimming Control Features OCP;OVP Package Type SOT-26 Features Tight LED Current Regulation No Opto-Coupler and TL431 Required Power Factor Correction (PFC) Quasi-Resonant A (0kB) Product Overview »View Reliability Data »View Material Composition »No Product Change Notifications exist The FL7701 LED lamp driver is a simple IC with PFC function. http://www.richtek.com/Products/LED%20Driver/AC_DC%20Lighting%20LED%20Driver/RT7304 This capability together with load monitoring circuitry regulates bleeder current during each switching cycle.

Example: controllers OR converters Phrase Search ( " " ) - Results contain exact words in that exact order. Example: "npn bipolar transistor" Fill in the Blanks - Wildcard ( * ) - Results contain various forms of words sharing common roots or stems. All Rights Reserved.

TOP 简体中文 | 日本語 | Русский Products Product Taxonomy Product Services New Products Connectivity, Custom, and SoC » Audio/Video ASSP Audio ASSP(16) Audio DSP Systems(15) Site Navigation MENU Home New Product Alerts Articles Products News What's Inside Sample Center Engineering Distribution Buyers Guide Technology Centers Analog / Mixed Signal ICs Analog / Mixed Signal ICs Home

Lm3450

How To Product of the Year EEM eBook Library Newsletters Energy Saving Calculators and Tools Sign In | Register Close Sign In Here Register Search Close Home > Analog/ Mixed Signal Please input order qty: Invalid number! Led Driver Achieves 0.95 Power Factor The RT7302 is designed to be compatible with PWM Dimming. Power Factor Of Led Bulbs By using Primary Side Regulation (PSR), the RT7304 controls the output current accurately without a shunt regulator and an opto-coupler at the secondary side, reducing the external component count, the cost,

All Rights Reserved.

TOP Richtek About Richtek | Contact Us | English 簡体中文 繁體中文 Product Technical Document Reference Design Design Tools Cross Reference Products Applications Design Support Parametric Search My It supports high power factor across a wide range of line voltages, and it drives the converter in the Quasi-Resonant (QR) mode to achieve higher efficiency. The controller also provides cycle-by-cycle current limit, output OVP, line overvoltage, comprehensive protection features, plus advanced thermal management circuitry.  All LYTSwitch-3 ICs have a built-in TRIAC detector that discriminates between leading-edge and When AC input is applied to the IC, PFC function is automatically enabled.

The symbol (*) represents additional letters or characters Example: "NCP*" Exclude Terms ( - ) - Results do not contain the term immediately following it (do not add a space after Otherwise, when DC input is applied to the IC, PFC function is automatically disabled. Protecting Life Littelfuse Speed2Design @ NASA Littelfuse Speed2Design @ IndyCar Tutorials Download Center Download Center Home Datasheet Archive Catalogs and Literature Downloads Reference Design Directory White Paper Downloads Research Paper Downloads Applications AC/DC LED Lighting driver AC/CC isolation AC/CC non-isolation Key Spec. & Features Documents Reference Design Design Tools Ordering Information Key Spec.

Features Digitally Implemented Active PFC Function (No Additional Circuit Necessary for High PF) Built-in HV Supplying Circuit: Self Biasing AOCP Function with Auto-Restart Mode Built-in Over-Temperature Protection Function Cycle-by-Cycle Current MOSFET Integrated No PFC Y Current Sense Threshold (mV) Dimming Control PWM Features OCP;OVP Package Type SOP-8 Features Tight LED Current Regulation No Opto-Coupler and TL431 Required Power Factor Correction (PFC) Example: controllers AND converters OR - Results contain either of the words.

The RT7302 embeds comprehensive protection functions for robust designs, including LED open-circuit protection, LED short-circuit protection, output diode short-circuit protection, VDD Under-Voltage Lockout (UVLO), VDD Over-Voltage Protection (VDD OVP), Over-Temperature Protection

Each device incorporates a high-voltage power MOSFET and discontinuous mode, variable frequency variable on-time controller. Richtek About Richtek | Contact Us | English 簡体中文 繁體中文 Product Technical Document Reference Design Design Tools Cross Reference Products Applications Design Support Parametric Search My Richtek0 History Linear Regulator (LDO) The RT7304 embeds comprehensive protection functions for robust designs, including LED open-circuit protection, LED short-circuit protection, output diode short-circuit protection, VDD Under-Voltage lockout (UVLO), VDD Over-Voltage Protection (VDD OVP), Over-Temperature Protection It supports high power factor across a wide range of line voltages, and it drives the converter in the Quasi-Resonant (QR) mode to achieve higher efficiency.

Please input order qty: Invalid number! FL7701M Obsolete Pb-free LED Driver, Non-Isolated PFC Buck 1 RAIL 9500 Rochester Contact Sales Office FL7701MX Active Pb-free Halide free LED Driver, Non-Isolated PFC Buck, Smart Non-Isolated PFC Buck LED The FL7701 does not need a bulk capacitor (electrolytic capacitor) for supply rail stability, which can significantly affect LED lamp system lifetime. An in-house design High Voltage (HV) start-up device is integrated in the RT7302 to minimize the power loss and shorten the start-up time.