Fairchild Semiconductor’s Programmable LED Blinker Device Addresses the Design Challenge of Driving a Single-LED
September 01 2009 - 11:03AM
Business Wire
Fairchild Semiconductor (NYSE: FCS) enables designers of mobile
handsets, ultra-portable devices, consumer products and
industrial/embedded systems to implement a blinking LED solution
that can easily be programmed to create an enhanced visual
experience. Fairchild’s programmable LED blinker, the FAN5646,
eliminates the need for a microprocessor to be in continuous
operation mode. With proprietary TinyWire™ single-wire digital
interface, the FAN5646 can be programmed with a unique LED blink
rate and pattern. When the FAN5646 is enabled it will continually
play these LED blink patterns until commanded by the microprocessor
to stop. Common approaches for solving this challenge include
connecting the LED to an LDO regulator or a FET plus a lithium ion
battery. Both of these implementations require a microprocessor to
be programmed with a blinking pattern, draining battery life since
the microprocessor needs to be continually operating to maintain
this pattern.
The FAN5646 lowers the overall solution cost while providing the
features and benefits designers are requesting. Key features
include:
- Minimizes System Power
Consumption
- Internal programmable LED blink
pattern allows the microprocessor to remain in sleep mode while
FAN5646 is operating.
- Low power consumption during
operation or in shutdown mode.
- TinyWire Single-Wire Digital
Interface
- Provides designer flexibility to
program different blink rates and patterns.
- Up to two different pulse widths
and blink rates can be programmed.
- Very Low Drop-out Voltage
- 80mV drop-out enables the LED to
be powered without the need for inductors or switching capacitors,
minimizing component count.
- Reduced component count results
in lower inventory and procurement costs along with an easier PCB
layout.
- Small Form Factor
- Saves valuable board space in
ultra-portable applications.
- WL-CSP version occupies <
0.80mm2 of area.
- Small standard package: 5-lead
SC70.
The FAN5646 is an example of Fairchild’s expertise in delivering
novel lighting solutions that meet the design needs of the
ultra-portable, consumer and industrial/embedded markets. Consumers
today are demanding products to be visually appealing and with the
FAN5646, Fairchild offers a solution to help meet these
requirements while satisfying designers’ demands.
Price (each, 1,000 pcs.): US $0.50
Availability: Samples available now
Delivery: 12 weeks ARO
Contact Information:
To contact Fairchild Semiconductor about this product, please go
to: http://www.fairchildsemi.com/cf/sales_contacts/.
For information on other products, design tools and sales
contacts, please visit: http://www.fairchildsemi.com.
Note to Editor: For a datasheet in PDF format, please go
to: http://www.fairchildsemi.com/ds/FA/FAN5646.pdf
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) is a global leader
delivering energy-efficient power analog and power discrete
solutions. Fairchild is The Power Franchise®, providing
leading-edge silicon and packaging technologies, manufacturing
strength and system expertise for consumer, communications,
industrial, portable, computing and automotive systems. An
application-driven, solution-based semiconductor supplier,
Fairchild provides online design tools and design centers worldwide
as part of its comprehensive Global Power ResourceSM. Please
contact us on the web at www.fairchildsemi.com.
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