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LX1995

MINIATURE LED DRIVER LX1995 EVUALATION KIT

LX1995

Miniature LED Driver

LX1995

MINIATURE LED DRIVER LX1995 EVUALATION KIT

LX1995-2CSE

LED Drivers; ·Tiny 5-Pin TSOT Package\n·Smallest External Components\n·Efficient even at low current levels Logic Controlled Shutdown\n·< 1μA Shutdown Current\n·> 85% Maximum Efficiency\n·70μA Typical Quiescent Supply Current\n  ROHS, PB Free;

THIS PRODUCT IS END OF LIFEThe LX1995 is a small sized step-up boost converter available in a Tiny TSOT-5 package suitable for driving adjustable boost topologies, which include drivers for white or color LEDs in portable devices. The LX1995 switches at rates up to 2 MHz to allow the use of extremely small inductor and filter capacitor. The LX1995 is available in two versions, 1 and 2, capable of driving 6 or 10 white LEDs, respectively. Designed for maximum efficiency over a wide output power range, the LX1995 is ideal for displays with day and night usage. The LX1995 features a pseudo-hysteretic pulse frequency modulation that promotes improved performance in battery-operated systems by operating with a quiescent supply current <70μA (typical) and a shutdown current of less than 1μA. The input voltage range is from 1.6V to 5.5V thus allowing for a broad selection of battery voltage applications and start-up is guaranteed at 1.6V input. The output current is readily programmed using one external current sense resistor in series with the LEDs. This configuration provides a feedback signal to the FB pin thus maintaining constant output current regardless of varying input voltage and LED forward voltage (VF). Dimming may be accomplished by PWM modulating the shutdown input; the fast response time and stability of the PFM modulation circuit allows PWM dimming to low duty cycles. The LX1995 is available in the 5-Pin TSOT and thus requires a very small PCB area.

LX1995-2CSG

LED Drivers; ·Tiny 5-Pin TSOT Package\n·Smallest External Components\n·Efficient even at low current levels Logic Controlled Shutdown\n·< 1μA Shutdown Current\n·> 85% Maximum Efficiency\n·70μA Typical Quiescent Supply Current\n  ROHS, PB Free;

THIS PRODUCT IS END OF LIFEThe LX1995 is a small sized step-up boost converter available in a Tiny TSOT-5 package suitable for driving adjustable boost topologies, which include drivers for white or color LEDs in portable devices. The LX1995 switches at rates up to 2 MHz to allow the use of extremely small inductor and filter capacitor. The LX1995 is available in two versions, 1 and 2, capable of driving 6 or 10 white LEDs, respectively. Designed for maximum efficiency over a wide output power range, the LX1995 is ideal for displays with day and night usage. The LX1995 features a pseudo-hysteretic pulse frequency modulation that promotes improved performance in battery-operated systems by operating with a quiescent supply current <70μA (typical) and a shutdown current of less than 1μA. The input voltage range is from 1.6V to 5.5V thus allowing for a broad selection of battery voltage applications and start-up is guaranteed at 1.6V input. The output current is readily programmed using one external current sense resistor in series with the LEDs. This configuration provides a feedback signal to the FB pin thus maintaining constant output current regardless of varying input voltage and LED forward voltage (VF). Dimming may be accomplished by PWM modulating the shutdown input; the fast response time and stability of the PFM modulation circuit allows PWM dimming to low duty cycles. The LX1995 is available in the 5-Pin TSOT and thus requires a very small PCB area.

LX1995_05

Miniature LED Driver

LX1995-1CSE

MINIATURE LED DRIVER LX1995 EVUALATION KIT

LX1995-1CSE

Miniature LED Driver

LX1995-1CSE-TR

Miniature LED Driver

LX1995-1CSG

MINIATURE LED DRIVER LX1995 EVUALATION KIT