525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation 525kHz/1.6MHz, Constant Current Boost and SEPIC LED Driver with Internal Compensation
from the PowerWise® Family
LM3410Q is AEC-Q100 Grade 1 qualified and is manufactured on an Automotive Grade Flow
Description
The LM3410 constant current LED driver is a monolithic, high frequency, PWM DC/DC converter in 5-pin SOT23, 6-pin LLP, & 8-pin
eMSOP packages. With a minimum of external components the LM3410 is easy to use. It can drive 2.8A typical peak currents
with an internal 170 mΩ NMOS switch. Switching frequency is internally set to either 525 kHz or 1.60 MHz, allowing the use
of extremely small surface mount inductors and chip capacitors. Even though the operating frequency is high, efficiencies
up to 88% are easy to achieve. External shutdown is included, featuring an ultra-low standby current of 80 nA. The LM3410
utilizes current-mode control and internal compensation to provide high-performance over a wide range of operating conditions.
Additional features include dimming, cycle-by-cycle current limit, and thermal shutdown.
The Evaluation Board included in this shipment converts 2.7V to 5.5V input, and illuminates four 50mA LEDs in series using the LM3410X 1.6MHz LED driver switching converter.
Contents:
LM3410XSDLED Boost LED Driver 6-Pin in LLP Evaluation Board
The Evaluation Board included in this shipment converts 2.7V to 5.5V input, and illuminates four 50mA LEDs in series using the LM3410X 1.6MHz LED driver switching converter.
The demo board included in this shipment converts 2.7V to 5.5V input, and illuminates a 320 mA HB/OLED using the LM3410X 1.6MHz LED driver switching converter. This is a 2-layer board using the bottom layer as a Ground plane.
The above restrictions for the input voltage are valid only for the demo board as shipped. Operating Conditions:
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.