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