ChipDocs - Datasheet Source for Semiconductor and Electronic Circuit Components
More than
4 307 195 
components listed
Partname:ADM8839ACPZ-REEL7
Description:Charge Pump Regulator for Color TFT Panel
Manufacturer:Analog Devices
Pins:20
Datasheet:PDF (339K).
Click here to download *)

The ADM8839 is a charge pump regulator used for color thin film transistor (TFT) liquid crystal displays (LCDs). Using charge pump technology, the device can be used to generate three voltages (+5 V 2%, +15 V, -15 V) from a single 3 V supply. These voltages are then used to provide supplies for the LCD controller (5 V) and the gate drives for the transistors in the panel (+15 V and -15 V). Only a few external capacitors are needed for the charge pumps. An efficient low dropout (LDO) voltage regulator ensures that the power efficiency is high, and provides a low ripple 5 V output. This LDO can be shut down and an external LDO can be used to regulate the 5 V doubler output and drive the input to the charge pump section that generates the +15 V and -15 V outputs, if required by the user.

*)Datasheets downloading from ChipDocs is only for our members (paid service). REGISTER NOW for your membership.
Free Subscription to Laser Focus World Magazine
Free Subscription to Laser Focus World Magazine
Laser Focus World Magazine.
Subscribe now for FREE !
Win Win Circuit - PCB,PCBA,Touch Screen,LED Lighting
Win Win Circuit LTD. PCB, PCBA, LCD Module
www.wwteq.com
COPYRIGHT 1997-2016 ChipDocs  ALL RIGHT RESERVED