The bp2327aj is a high precision non isolated buck apfc led driver, specially designed for universal mains with constant current control. The lnk460kg controller can also be used in a lowline nonisolated pfc led driver in a buckboost configuration for a t8 led lamp. Nonisolated buck led driver fl7701 for small spaced. Led with constant output current and power factor correction are presented in this paper, the nonisolated buck converters are used for the led drivers, according to different operating mode of.
A single stage optocouplerless buckboost pfc driver for. Nonisolated, phase dimmable, buck pfc led driver with digital ref control datasheet rev. Silan microelectronics introduced high pfc nonisolated led driver ics utilizing buck structure. Nonisolated two stage boost pfc plus current regulated. Analog devices has a very broad line of led drivers for backlighting applications. Operating in critical conduction mode, the driver achieves highpowerfactor,lowthdandhighefficiency. Start up after system powered up, the vcc pin capacitor is charged up by the start up. Mp4001 no pfc, notriac dimming nonisolated offline led. This document is a design example report of a 40 w wide range dimmable, high efficiency, power factor corrected, nonisolated buck led driver employing lytswitch7 lyt7504d. They are configured as either inductorless white led drivers for leds in parallel, or inductorbased.
The mt7833a is a highpf, apfc nonisolate led driver ic. Energyefficient solutions for offline led lighting and. Led driver supply general description the ws3412 is designed for active pfc nonisolated buck led driver. Fl7734, singlestage primarysideregulation pwm controller for pfc and phasecut dimmable led driving. Offline led driver with primarysensing and high power factor up to 15w. No pfc, notriac dimming acdc nonisolated led lighting. Main line power up nonisolated buck apfc led driver. Our products for led drivers range from analog led driver ics that are tailored for specific applications, to configurable digital ics that can accelerate the time to market, and last but not least, to microcontrollers that offer the.
The mp4001 is a high efficiency stepdown converter designed for driving the high brightness light emitting diodes leds. Nonisolated, phase dimmable, buck pfc led driver with digital reference control datasheet. The topology consists of a 90 w wide input range power factor correction. The mt7830 works in qrm mode, which improves both of efficiency and emi performance. The topology consists of a 90 w wide input range power factor correction boost converter front end based on the. Sts offline led drivers operate from the ac mains and ensure highlyaccurate constant output current. Nonisolated buck and buckboost convertor high power and smart lighting. Driver ics high power led driver page 21 smart lighting page 25 design tools page 28. Slusb88b december 2012revised january 2014 nonisolated, phase dimmable, buck pfc led driver with digital reference. The output current automatically adapt to the variation of the inductance and the output voltage.
Non isolated design is limited to double insulation products, such as light bulbs alternative products, including led and the product are integrated and sealed in a non conductive plastic, so the end user does not have any risk of electric shock. The ws34 is designed for active pfc nonisolated buck led driver, which integrates 500v power mosfet and using dip8 package, producing up to 260ma output current. Nonisolated two stage boost pfc plus current regulated buck led driver irxled09 authors. Depending on the end applications, dualstage nonisolated topologies, such as pfc and buck, are also used. To220f downsized pcb products offers to meet various needs such as various form and loads of the lamp. Fcs, a leading global supplier of high performance power and mobile products, developed the fl7701 smart nonisolated buck led driver with power factor correction pfc. Fls0116, smart non isolated pfc buck led driver with integrated mosfet.
Energyefficient solutions for offline led lighting offline led driver solutions. Fairchild semiconductor showcases led lighting solutions. Buck pfc led driver with digital reference control datasheet. Fl7701 smart led lamp driver ic with pfc function october 2011 fl7701. The fl7701 driver controller ic has pfc integrated into its control strategy and the control ic can be powered from the rectified offline input using a small ceramic capacitor for holdup. Tps92075 data sheet, product information and support.
Full set of protection modes including intelligent over temperature protection. Additionally, these solutions need to work reliably in a small space while providing high efficiency. Video highlighting a smart led lamp driver ic that solves smallspace dimming challenges. Highvoltage converters in nonisolated topologies 3watt led driver stevalill026v1. Fls3217, non dimmable singlestage pfc psr offline led driver with integrated mosfet. The fl7701 driver controller ic has pfc integrated into its control strategy and the control ic can be powered from the rectified offline. Acdc buck controller with high power factor for led tubes and lamps. The special adopted digital technique of the ic can automatically detect input voltage condition and send an internal. No pfc circuit required high power factor in light load class c.
Nonisolated, buck pfc led driver with digital reference control. Conclusively, isolated or non isolated led driver have their own advantages and disadvantages. Our products for led drivers range from analog led driver ics that are tailored for. The ws34 is designed for active pfc non isolated buck led driver, which integrates 500v power mosfet and using dip8 package, producing up to 260ma output current. Nonisolated two stage boost pfc plus current regulated buck. Highvoltage converters in non isolated topologies 3watt led driver stevalill026v1. Fl7701 smart nonisolated buck led driver with power factor correction fan7382 600 v half bridge gate driver 800 v superfet ii nchannel mosfets fairchild does more to help engineers complete their designs. The mp4001 drives external mosfet with boundary conduction. Order the tps92074ddcr nonisolated, buck pfc led driver with digital reference control from texas instruments. Diodes low voltage dcdc high brightness led drivers are targeted at battery powered systems for general illumination applications. Fls3217, nondimmable singlestage pfc psr offline led driver with integrated mosfet.
The bp2327aj integrates a 650v power mosfet, utilizes patent pending floating ground structure, and. Slusbo7 august 20 nonisolated, buck pfc led driver with digital reference control check for samples. Currently in the general led lighting market, there is a non isolated and isolated difference for driver powers. Tps92075 1features description controlled reference derived pfc the tps92075 is a hybrid power factor controller pfc with a builtin phase. Heres how body electronics and lighting technology are changing the driving experience. To help designers meet this challenge, fairchild semiconductor nyse. Nonisolated, buck pfc led driver with digital reference. Acdc pfc cv psr flyback dcdc cc buck sop10 ssot6l 010 dim. See the selection guide of acdc convertor and pfc about pfc, llc and pwm ics. Dimmable led driver with primary side cccv control and. Led driver smart nonisolated pfc soic8 power management ics buck converters delivery on production packaging reel. Tps92074ddcr nonisolated, buck pfc led driver with. The ws3412 is a high precision active pfc driver integrating 550v power mosfet, specially designed for non isolated buck offline constant current led lighting.
We offer application notes, reference designs, tutorials, evaluation boards and unequaled technical expertise and support. Ht7l4661 active pfc nonisolation buck led lighting driver. Currently in the general led lighting market, there is a nonisolated and isolated difference for driver powers. It operates at an input voltage ranging from 100 vac to 300 vac and delivers an output of 52 v at 380 ma.
It operates at valley switching mode with high efficiency, low emi and high pf. The ws3412 is a high precision active pfc driver integrating 550v power mosfet, specially designed for nonisolated buck offline constant current led lighting. The device uses a digital technique that allows it to automatically detect the ac input voltage condition, allowing it to create a special internal reference signal that results in high power factor correction. The driver with onchip pfc circuit achieves high power factor, low thd and high efficiency. Isolated and nonisolated flyback led driver with active pfc zsls7031 datasheet 1 january 26, 2016 brief description. Slusb88b december 2012revised january 2014 nonisolated, phase dimmable, buck pfc led driver with digital reference control check for samples. Hw9616b jilin nonisolated led driver ibs electronics. Isolated and nonisolated flyback led driver with active pfc.
Nonisolated twostage boost pfc plus current regulated. Nonisolated, phase dimmable, buck pfc led driver with. Nonisolated design is limited to double insulation products, such as light bulbs. Ht7l4661 active pfc nonisolation buck led lighting driver with dimming function feature nonisolation buck topology wide ac input range. Compare all products in general lighting led drivers email download to excel.
Depending on the end applications, dualstage non isolated topologies, such as pfc and buck, are also used. Nonisolated two stage boost pfc plus current regulated buck led driver introduction 1 introduction the irxled09 reference design is a low cost two stage nondimmable led driver solution. Led driver supply general description the ws3412 is designed for active pfc non isolated buck led driver. Nov 01, 2012 video highlighting a smart led lamp driver ic that solves smallspace dimming challenges. Fl7701 buck led driver ic on semiconductor digikey. The mp4001 integrates a highvoltage smart ldo, which allows the ac input to power up the ic directly.
Nonisolated led driver is higher on power efficiency than isolated led driver due to the fact that transformer losses are avoided. Fairchild semiconductors smart led lamp driver ic solves. 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. Conclusively, isolated or nonisolated led driver have their. The ncl30386 from on semiconductor is a power factor corrected controller targeting isolated and non. The floatingground, highside buck topology makes full wave detection possible. Fcs, a leading global supplier of high performance power and mobile products, developed the fl7701 smart nonisolated buck led driver with power factor correction. Ssl2103 230 v 12 w e27 retrofit led driver demo board um10485. The mp4001 is a high efficiency stepdown converter designed for driving the high brightness light.
Single stage nonisolated topology direct ac led driver. Main line power up nonisolated buck apfc led driver features active pfc for high power factor and low thd builtin hv startup and ic power supply circuit, the vdd power supply resistors and power feedback circuits from led chips are not needed 600v high voltage mosfet integrated 3% led output current accuracy. The zsls7031 is a primaryside controlled, peakcurrentmode highbrightness led flyback driver that supports bothisolated and nonisolated designs with active power factor correction. The sdh697xfs devices use active power factor correction apfc and achieve a pf power factor 0. Non isolated led driver is higher on power efficiency than isolated led driver due to the fact that transformer losses are avoided. Fls0116, smart nonisolated pfc buck led driver with integrated mosfet. Fl7733amx, primarysideregulated led driver with power factor correction.
The hw9616b is a high precision nonisolated buck driver with active pfc, specially designed for universal input offline constant current led lighting. The driver with onchip pfc circuit achieves high power factor and low thd. On semiconductors fl7701 is a smart, nonisolated buck led driver ic on semiconductor offers the fl7701, a smart, nonisolated buck led driver ic. Main line power up nonisolated buck apfc led driver features active pfc for high power factor and low thd builtin hv startup and ic power supply circuit, the vdd power supply. Fl7701 smart led lamp driver ic with pfc function april 2012 fl7701 smart led lamp driver ic with pfc function features, reference.
The bp2327aj is a high precision nonisolated buck apfc led driver, specially designed for universal mains with constant current control. Tps92074 1features description controlled reference derived pfc the tps92074 is a hybrid power factor controller pfc optimized for driving led lighting solutions that. The device uses a digital technique to automatically detect the ac input voltage condition, allowing it to create a special internal reference signal that results in high power factor correction. It eliminates the need for an optocoupler, tl431 shunt regulator, or any. The fl7701 smart nonisolated buck led driver with power factor correction pfc. Tps92074 data sheet, product information and support. The device works at a constant frequency in discontinuous conduction mode to providecon stant power to theoutput. When ac input is applied to the ic, pfc function is automatically enabled.
The hw9616b is a high precision non isolated buck driver with active pfc, specially designed for universal input offline constant current led lighting. The mp4001 drives external mosfet with boundary conduction mode which features no reverse recovery loss in the freewheeling diode, s. The sdh697xfs devices use active power factor correction apfc and achieve a pf power. Nonisolated, buck pfc led driver with digital reference control 6sot23thin 40 to 125. Apfc nonisolated led drivers apfc nonisolated led driver. The fl7701 led lamp driver is a simple ic with pfc function. The topology consists of a power factor correction pfc boost converter front end based on the irs2505l controller ic. Nonisolated twostage boost pfc plus currentregulated buck led driver introduction 1 introduction the irxled10 reference design is a 75 w rated twostage nondimmable led driver solution. Nonisolated buck led driver fl7701 for small spaced dimming. Buckboostbuck boost click on the link below to see our highly integrated solutions optimized for nonisolated offline power supplies. High pfc nonisolated led driver with integrated protections. They are configured as either inductorless white led drivers for leds in parallel, or inductorbased white led drivers for leds in series. The mt7830 is a highpf, apfc non isolate led driver ic. Based on the functional and safety requirements one should decide the topology to be used.
846 1490 1122 88 1244 919 944 1133 1138 412 191 10 576 966 367 89 739 665 623 611 88 908 1086 850 405 222 1110 613 826 65 1452 662 1019