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Subject: Re: looking for maxim 10umax convertor to DIP300 pin
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Date: Fri, 8 Nov 2002 04:50:47 -0800
NNTP-Posting-Date: Fri, 08 Nov 2002 04:49:42 MET
Organization: @Home Network
"Nucharin W. Jansen" wrote in message
> How to build a very small PCB ?
> I would like to use these IC.
> But it looks very tiny and hard to soldier.
That's indeed very tiny, I don't think you will be able to etch an PCB with
such tiny pads and traces. That's better left to a boardhouse.
Why don't you try to get hold of the evalution board?
> MAX1698 - High-Efficiency Step-Up Current Regulator for LEDs
> The MAX1698 is the most efficient driver for white or color LEDs.
> The device is ideal for LED backlit displays in PDAs and digital
> cameras, and can also be used for larger displays like those in
> laptop computers. 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 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. The required sense
> resistor is typically 15 ohms, not an expensive fractional-ohm value.
> LED current control and dimming are accomplished with an adjust input
> (ADJ), not with lossy current-limiting 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 µMAX package that
> occupies half the space of an 8-pin SO. An evaluation kit
> (MAX1698EVKIT) is available to speed designs.
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