LED6000 Datasheet, PDF (1/49 Pages) STMicroelectronics – Enable with dedicated pin

LED6000
3 A, 61 V monolithic current source with dimming capability
Datasheet - production data
HTSSOP16 (R_TH = 40 °C)
Features
 Up to 3 A DC output current
 4.5 V to 61 V operating input voltage
 R_DS,ON = 250 m typ.
 Adjustable f_SW (250 kHz - 1.5 MHz)
 Dimming function with dedicated pin
 Low I_Q shutdown (10 µA typ. from VIN)
 Low I_Q 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
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May 2015
This is information on a product in full production.
DocID027777 Rev 2
1/49
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