The MAX1698 and MAX1698A are efficient drivers forwhite or color LEDs. They are ideal for large LED backlitdisplays in PDAs and laptop computers. Numerousbenefits include greater simplicity, lower cost, higherefficiency, longer bulb life, and greater reliability whencompared to fluorescent (CCFL) and electroluminescent(EL) lamps.The MAX1698/MAX1698A are switch-mode boost controllersin which LED current, rather than output voltage,is regulated The devices drive series-connected LEDswith a controlled current that is measured with a typically15Ω sense resistor, not an expensive fractional-ohm value. LED current control and dimming are accomplishedwith an adjust input (ADJ). For larger light output,multiple LED banks can be connected in parallelwith up to 5W total output power.The MAX1698A has a higher, and more accuratelyspecified, CS current limit than the MAX1698 for higherpowerapplications of 5W or more. Both devices aresupplied in a space-saving 10-pin µMAX package thatoccupies half the space of an 8-pin SO. An evaluationkit (MAX1698EVKIT) is available to speed designs.ApplicationsBacklight for LCD PanelsBattery-Powered Backlight ApplicationsCell PhonesHandy TerminalsPDAs

LED Power Supplies 159.9W 34-56V 3300mA CP adj w/pot

F6-3

F4-2

F6-3

Standard LEDs - SMD

EVL19-217/BHC-ZL1M2RY/6T LED BLUE CLEAR

XLAMP MK-R LIGHT EMITTING DIODE WARM/NEUTRAL WHITE

The MAX8834Y/MAX8834Z flash drivers integrate a 1.5A PWM DC-DC step-up converter and three programmable low-side, low-dropout LED current regulators. The step-up converter features an internal switching MOSFET and synchronous rectifier to improve efficiency and minimize external component count. An I²C interface provides flexible control of stepup converter output voltage setting, movie/flash mode selection, flash timer duration settings, and current regulator settings. The MAX8834Y/MAX8834Z operate down to 2.5V, making them future proof for new battery technologies.The MAX8834Y/MAX8834Z consist of two current regulators for the flash/movie mode. Each current regulator can sink 750mA in flash mode and 125mA in movie mode. The MAX8834Y/MAX8834Z also integrate a 16mA low-current regulator that can be used to indicate camera status. The indicator current regulator includes programmable ramp and blink timer settings. A programmable input current limit, invoked using the GSMB control, reduces the total current drawn from the battery during PA transmit events. This ensures the flash current is set to the maximum possible for any given operating condition. Additionally, the MAX8834Y/MAX8834Z include a MAXFLASH function that adaptively reduces flash current during low battery conditions to help prevent system undervoltage lockup.Other features include an optional NTC input for finger-burn protection and open/short LED detection. The MAX8834Y switches at 2MHz, providing best overall efficiency. The MAX8834Z switches at 4MHz, providing smallest overall solution size. The MAX8834Y/MAX8834Z are available in a 20-bump, 0.5mm pitch WLP package (2.5mm x 2.0mm).ApplicationsCell Phones and Smart PhonesPDAs, Digital Cameras, and Camcorders

LED Mounting Hardware SNAPIN HLDR T-1 3/4 .315 DIA X .274" L