Product category: Power Supply ICs and Controllers
News Release from: Intersil | Subject: EL5126
Edited by the Electronicstalk Editorial Team on 23 January 2003
Programmable buffer speeds LCD panel design
Intersil has developed the first TFT-LCD programmable reference voltage generator with an I2C interface tailored designed specifically for LCD and next generation TFT smart panel designs.
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Intersil has developed the industry's first TFT-LCD programmable reference voltage generator with an I2C interface tailored designed specifically for LCD and next generation TFT smart panel designs. The EL5126's programmability simplifies the development process by providing a single solution that allows designers to optimise the voltage transmission gamma curve for many different LCD display types. The EL5126 also replaces current buffer technology including resistor ladders, eliminating the lengthy matching process for the resistors used to generate the gamma voltages.
"Targeted at next generation smart panel designs, these new programmable buffers save our customers development time by allowing them to optimise the gamma curve depending on customer requirements, end-user selections, or based upon the characteristics of a given panel", said Michael Jennings, Director of Strategic Marketing for Intersil's Elantec Video and Amplifier Products.
The EL5126 provides the reference voltages that are used in setting the transfer characteristics of LCD display panels.
It features eight reference outputs, each programmable to a 10bit resolution and a number of devices can be stacked to provide even greater resolution.
Each channel of the device is capable of swinging to either power supply rail and has a very robust 30mA continuous output current rating.
The EL5126 also features an output range of up to 18V, while the input side can operate from 3 to 5V.
Programmable via an I2C serial interface, the EL5126 can be controlled either by a microcontroller, an ASIC within a smart panel application, or by an existing timing controller.
Intersil's EL5126 complements the EL5825 - an eight-channel device that incorporates a three-wire interface - and is the latest device in a broad family of Intersil products targeted at TFT-LCD applications, including PDAs, automobile displays, desktop PC monitors, and notebook PC and LCD-TV flat panels.
Complementary Intersil products include gamma buffers, VCOM amplifiers, DC/DC convertors and programmable buffers.
The EL5126 is available now in a 32-pin leadless plastic package (LPP).
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