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| STEVAL-ILL056V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – Peak current mode architecture | |||
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STEVAL-ILL056V1
3 A buck LED driver board based on the LED5000
Data brief
Features
⢠5.5 V to 48 V operating input voltage range
⢠850 kHz fixed switching frequency
⢠200 mV typ. current sense voltage drop
⢠Buck / buck-boost / floating boost topologies
⢠PWM dimming
⢠±3% output current accuracy over
temperature
⢠200 mOhm typical RDS(on)
⢠Peak current mode architecture
⢠Short-circuit protection
⢠Compliant with ceramic output capacitors
⢠Inhibit for zero current consumption
⢠Thermal shutdown
⢠RoHS compliant
Description
The STEVAL-ILL056V1 is a product evaluation
board based on the LED5000, an 850 kHz fixed
switching frequency monolithic step-down DC-DC
converter designed to operate as a precise
constant current source with an adjustable
current capability up to 3 A DC.The embedded
PWM dimming circuitry features LED brightness
control. The regulated output current level is set
by connecting a sensing resistor to the feedback
pin. The 200 mV typical RSENSE voltage drop
enhances performance in terms of efficiency.The
size of the overall application is minimized thanks
to the high switching frequency and its
compatibility with ceramic output capacitors. The
device is fully protected against overheating,
overcurrent and output short-circuit.
November 2013
DocID025539 Rev 1
For further information contact your local STMicroelectronics sales
office
1/4
www.st.com
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