Product category:
Power Supply ICs and Controllers
News Release from: ON Semiconductor | Subject: NCP5810
Edited by the Electronicstalk Editorial
Team on 11 June 2007
Convertor rises to OLED power challenges
2W dual-output DC/DC convertor offers both positive and negative output for powering active matrix OLED displays.
New from ON Semiconductor, the NCP5810 is a 2W dual-output DC/DC convertor that offers both positive and negative output The device's output voltage accuracy, high switching frequency, and small package size makes it particularly suitable for powering a display driver in active matrix organic light emitting diodes (AMOLED) panel, an emerging display technology for portable applications
This article was originally published on Electronicstalk on 31 Mar 2003 at 8.00am (UK)
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"The NCP5810 presents great advantages for the AMOLED power supply", says Manor Narayanan, Vice President and General Manager of ON Semiconductor's Digital and Consumer Products Group.
"ON Semiconductor is dedicated to working with customers to design devices that meet their specific needs".
"A successful example of such collaboration is the NCP5810, which has been selected by the leading display manufacturer to power the new AMOLED panel for ultrathin portable multimedia devices and is already in mass production".
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Active matrix OLED - the latest display technology, where only a handful of display manufacturers will be ready to go mass production later this year or next year - delivers better colour contrast and video playback quality than today's LCDs but creates added power management challenges for design engineers.
For example, because AMOLED displays are sensitive to changes in power supply voltages, ON Semiconductor designed the NCP5810 to provide accurate feedback voltage with 1% tolerance and a fast line transient response with overshoot of 4mV, given a 500mV input voltage variation.
Featuring high overall efficiency up to 85% at 1.75MHz oscillator frequency, the NCP5810 dual output DC/DC convertor delivers best-in-class performance.
In order to complement the slim form factor of AMOLED display, the convertor switches at the high 1.75MHz frequency, allowing the use of small inductors and ceramic capacitors.
Its ultra-thin package with 0.55mm thickness allows the NCP5810 to fit into the thinnest portable design form factor.
In addition, it preserves battery power in shut-down mode with true cutoff function that limits the leakage display current to typically 1uA.
Additionally, the NCP5810 features cycle-by-cycle peak current limit and thermal shutdown protection.
Available in the ultrathin 3.0 x 3.0 x 0.55mm LLGA-12 package, the NCP5810 is budgetary priced at US $1.20 per unit in 3000-unit quantities.
In addition to the NCP5810 with fixed convertor output voltage, ON Semiconductor is sampling the adjustable version NCP5810A, offered in the same package.
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