LED6000PHR集成電路（IC）的LED驅(qū)動(dòng)器規(guī)格書(shū)PDF中文資料

LED6000PHR屬于集成電路（IC）的LED驅(qū)動(dòng)器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的LED6000PHRLED 驅(qū)動(dòng)器器件屬于 LED 驅(qū)動(dòng)器電源管理集成電路 (PMIC) 系列，可通過(guò)標(biāo)稱(chēng)固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類(lèi)似產(chǎn)品的主要區(qū)別在于，這類(lèi)器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪?duì)器件工作點(diǎn)進(jìn)行外部控制，可在照明應(yīng)用中用于實(shí)現(xiàn)調(diào)光功能。

Description

The LED6000 is a step-down monolithic switching

regulator designed to source up to 3 A DC current

for high power LED driving. The 250 mV typical

RSENSE voltage drop enhances the efficiency.

Digital dimming is implemented by driving the

dedicated DIM pin.

The adjustable current limitation, designed to

select the inductor RMS in accordance with the

nominal output LED current, and the adjustability

of the switching frequency allow the size of the

application to be compact. The embedded

switchover feature on the VBIAS pin maximizes

efficiency. Multiple devices can be synchronized

by sharing the SYNCH pin to prevent beating

noise in low-noise applications, and to reduce the

input current RMS value.

The device is fully protected against overheating,

overcurrent and output short-circuit.

The LED6000 is available in an HTSSOP16

exposed pad package.

Features

? Up to 3 A DC output current

? 4.5 V to 61 V operating input voltage

? RDS,ON = 250 m? typ.

? Adjustable fSW (250 kHz - 1.5 MHz)

? Dimming function with dedicated pin

? Low IQ shutdown (10 μA typ. from VIN)

? Low IQ operating (2.4 mA typ.)

? ± 3 output current accuracy

? Synchronization

? Enable with dedicated pin

? Adjustable soft-start time

? Adjustable current limitation

? Low dropout operation (12 μs max.)

? VBIAS improves efficiency at light-load

? Output voltage sequencing

? Auto recovery thermal shutdown

? MLCC output capacitor

Applications

? HB LED driving applications

? Halogen bulb replacement