LED6000PHR datasheet(1/49 Pages) STMICROELECTRONICS

Numer części	LED6000PHR

Szczegółowy opis	3 A, 61 V monolithic current source with dimming capability

PDF	49 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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1 / 49 page

This is information on a product in full production.

May 2015

DocID027777 Rev 2

1/49

LED6000

3 A, 61 V monolithic current source with dimming capability

Datasheet

- production data

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

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.

Figure 1. Application schematic

HTSSOP16 (RTH = 40 °C)

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