描述 Description

EL7520 and EL7520A are 4-channel DC/DC controllers that provide a complete power supply system for TFT-LCD applications. They consist of a 1MHz PWM boost controller, which generates the main voltage for the column driver, and three LDO controllers for VON, VOFF, and VLOGIC supplies. They also include integrated start-up sequence and start-up delay control.

特性 Features

? Complete TFT-LCD supply controller
?? - 1MHz PWM boost controller
?? - VON LDO controller
?? - VOFF LDO controller
?? - Logic supply LDO controller
? Integrated start-up sequence for VLOGIC/VBOOST, VOFF, VON or VLOGIC, VOFF, VBOOST, VON
?? - VLOGIC permanently enabled in A version (EL7520A)
? Programmable sequence delay
? In-rush current control
? Fully fault protected
? Thermal shutdown
? Internal soft-start
? 3V to 5.5V VDD
? 20 Ld 4x4 QFN package
? Low cost
? Pb-Free plus anneal available (RoHS compliant)Applications
? LCD monitors (15”+)
? LCD-TV (up to 40”+)
? Notebook displays (up to 16”)
? Industrial/medical LCD displays

應用 Application

? LCD monitors (15”+)
? LCD-TV (up to 40”+)
? Notebook displays (up to 16”)
? Industrial/medical LCD displays