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From: "Nucharin W. Jansen"
Subject: looking for maxim 10umax convertor to DIP300 pin
Date: Fri, 08 Nov 2002 00:57:56 +0700
Organization: C.S. Communications Co. Ltd.
NNTP-Posting-Date: Thu, 7 Nov 2002 18:02:31 +0000 (UTC)
X-Mailer: Mozilla 4.8 [en] (Windows NT 5.0; U)
How to build a very small PCB ?
I would like to use these IC.
But it looks very tiny and hard to soldier.
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
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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