LX1992

LED Driver, 8-Pin QFN, step-up boost controller, 80μA, -0.3V to 7.0V

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Price:: US $0.50~2.00 / piece [Get Latest Price]

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	US $0.50~2.00

PartNumber:: LX1992

Brand:: Microsemi Corporation - Microsemi | Pack: QFN | D/C: 10+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Total Price:: US $0

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Products Upload time: 2011-12-31

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Product Summary

The LX1992 is a compact high efficiency step-up boost controller for driving white or color LEDs in backlight or frontlight systems and offers designers maximum flexibility with respect to efficiency and cost. The LX1992 features a pseudohysteretic pulse frequency modulation topology and uses an external N Channel MOSFET. Further, the LX1992 features control circuitry that is optimized for portable systems.

Parametrics

LX1992 absolute maximum ratings: (1)Supply Voltage (VIN): -0.3V to 7.0V; (2)Feedback Input Voltage (VFB): -0.3V to VIN + 0.3V; (3)Shutdown Input Voltage (VSHDN): -0.3V to VIN + 0.3V; (4)Analog Adjust Input Voltage (VADJ): -0.3V to VIN + 0.3V; (5)Source Input Current (ISRC): 0.80 ARMS; (6)Operating Junction Temperature: 150℃; (7)Storage Temperature Range: -65℃ to 150℃; (8)Lead Temperature (Soldering 180 seconds): 235℃; (9)Peak Package Solder Reflow Temp. (40 second max. exposure): 260℃.

Features

LX1992 features:(1)> 90% Efficiency; (2)80μA Typical Quiescent Supply Current; (3)Externally Programmable Peak Inductor Current Limit For Maximum Efficiency; (4)Logic Controlled Shutdown; (5)< 1μA Shutdown Current; (6)Dynamic Output Current Adjustment Via Analog Reference Or Direct PWM Input; (7)8-Pin MSOP Package or 8-Pin MLP.