EC6585|2-Channel Charge Pump Supply For TFT-LCD

EC6585|2-Channel Charge Pump Supply For TFT-LCD

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General Description

The EC6585 is a high perfomance charge pump converter to generate positive and negative voltage
supply optimized for small to medium size thin-film transistor(TFT) liquid crystal displays (LCD’s).
The positive charge-pump controller provides 2x positive output voltage PAVDD and fixed -1x ratio of negative voltage NAVDD to supply the TFT LCD. To minimize the inrush current a built-in soft start circuit sets the soft
start period.
The EC6585 is convinient to use and requires only 5 small and low-cost ceramic capacitors.It is availiable in the TDFN-12L package which reduces board size and make the FPC or PCB layout design easier.

Features

◆ 2.5V to 4.5V Input Supply
◆ Positive Output Voltage Range 4.5V to 6V
◆ Negative Output Voltage Range -4.5V to -6V
◆ Support x2 Positive Voltage Charge Pump
◆ Negative Voltage Charge Pump Follow x(-1) Positive Output Voltage
◆ Up to 90% power conversion Efficiency
◆ Up to 100mA output current
50mA Output Current Capability @VIN=2.8V
80mA Output Current Capability @VIN=3.3V
100mA Output Current Capability @VIN=3.7V
◆ Build-in Soft-Start to Reduce Inrush Current
◆ Cycle by Cycle Input Current Limit Protection
◆ Small 12-pin 2.4mm1.5mm0.45mm TDFN Package
◆ RoHS Compliant and Halogen Free

Applications

◆ Smart Phone TFT LCD Bias Power Supply
◆ Tablet TFT LCD Bias Power Supply
◆ Car Navigation Display
◆ Portable equipment


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