ANX6585

ANX6585

应用

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

DESCRIPTION

     The ANX6585 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 ANX6585C performs truly shutdown. It means VSP is 0V when EN is low. The VSP of ANX6585D is pre-charged to VIN when EN is not pulled high. Both ANX6585C and ANX6585D provide the self-discharge function when EN is pulled down.

     The ANX6585 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

Support x2 Positive Voltage Charge Pump

Negative Voltage Charge Pump Follow x(-1)

Positive Output Voltage

Positive Output Voltage up to +6.0V

Negative Output Voltage down to -6.0V

Up to 90% Power Conversion Efficiency

Up to 120mA Output Current

- 50mA Output Current Capability @VIN=2.8V

- 120mA Output Current Capability @VIN=3.3V

Build-in Soft-Start to Reduce Inrush Current

Cycle by Cycle Input Current Limit Protection

Self-discharge during Power-off

Truly Shutdown of the Positive Output VSP(ANX6585C)

Pre-charge the Positive Output VSP to the

Input Voltage Level (ANX6585D)

Small 12-pin 2.4mm*1.5mm*0.45mm TDFN Package

RoHS Compliant and Halogen Free

PIN CONFIGURATION (TOP VIEW)
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ORDERING INFORMATION

Part NumberPackage

ANX6585CAD

TDFN2.4x1.5 – 12L

ANX6585DAD

TDFN2.4x1.5 – 12L

TYPICAL APPLICATION DIAGRAM

(1) Internal Clock Mode

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(2)External Clock Mode

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