MAX1698EUB-TG096

The MAX1698EUB-TG096 belongs to MAX1698 family which is the most efficient driver for white or color LEDs and it also is ideal for LED backlit displays in PDAs and digital cameras, and can also be used for larger displays like those in laptop computers. The MAX1698 is a switch-mode boost controller in which LED current, rather than output voltage, provides the feedback signal. It can operate with battery inputs as low as 0.8V. The device drives series-connected LEDs with a controlled current that is measured at a sense resistor connected at the feedback pin. Its numerous benefits include greater simplicity, lower cost, higher efficiency, longer bulb life, and greater reliability when compared to fluorescent (CCFL) and electroluminescent (EL) lamps. The required sense resistor is typically 15, not an expensive fractional-ohm value. LED current control and dimming are accomplished with an adjust input (ADJ), not with lossy currentlimiting resistors. For larger light output, multiple LED banks can be connected in parallel with up to 5W total output power. The MAX1698 is supplied in a space-saving 10-pin MAX package that occupies half the space of an 8-pin SO. An evaluation kit (MAX1698EVKIT) is available to speed designs.

The features of MAX1698EUB-TG096 can be summarized as (1)over 90% efficiency; (2)lossless, adjustable LED brightness; (3)space-saving 10-Pin MAX package; (4)simpler, lower cost, more reliable compared to CCFL or EL backlights; (5)up to 5W output power.

The absolute maximum ratings of MAX1698EUB-TG096 are (1)VCC, SHDN to GND: -0.3V to +6V; (2)EXT, FB, CS, ADJ, REF to GND: -0.3V to (VCC + 0.3V); (3)GND to PGND: ±0.3V; (4)continuous power dissipation (TA = +70°C) 10-Pin MAX (derate 5.6mW/°C above +70°C): 444mW; (5)operating temperature range: -40°C to +85°C; (6)junction temperature: +150°C; (7)storage temperature range: -65°C to +150°C; (8)lead temperature range (soldering, 10s): +300°C.