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HX8609A

Features: • TFT gate-line driving circuits 240 outputs• The driving timing suitable for configuration of TFT structure in display Cst structure (Cs-on-common TFT structure)• 2 Vcom output voltages : Vcom and Vcom2 which is alternating between VcomL , VcomH and Vco...

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SeekIC No. : 004368117 Detail

HX8609A: Features: • TFT gate-line driving circuits 240 outputs• The driving timing suitable for configuration of TFT structure in display Cst structure (Cs-on-common TFT structur...

HX8609A Data Sheet

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Part Number:
HX8609A
Supply Ability:
5000

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  • 1~5000
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Product Details

Description



Features:

• TFT gate-line driving circuits
 240 outputs
• The driving timing suitable for configuration of TFT structure in display
 Cst structure (Cs-on-common TFT structure)
• 2 Vcom output voltages : Vcom and Vcom2 which is alternating between VcomL , VcomH and VcomL2 , VcomH2.
• Alternating driving for TFT-display common-electrode power supply
 N-line alternating drive of Vcom
 Adjustment of Vcom amplitude : internal 22-level digital potentiometer.
 Adjustment of Vcom high voltage : internal 30-level digital potentiometer / externally adjusted by
variable resistor.
• The instruction transfer for mode setting
 Serial transfer from the HX8301A/8302A source driver
• Low-power consumption operation
 Controlling function for the switching performance of step-up circuits and operational amplifiers
• Input power-supply voltage
 Vcc GND = 1.8 ~ 3.3 V (Power supply for logic circuit)
 Vci GND = 2.5 ~ 3.3 V (Power supply for analog circuit)
• Power-supply voltage for liquid crystal(LC) driving
 DDVDH GND = 4.0 ~ 5.5 (V) (Driving for source driver liquid crystal output circuit
/ Driving for Vcom output)
 VGH GND = 9.0 ~ 16.5 (V) (Driving for gate driver)
 VGL GND = -4.0~ -14.0 (V) (Driving for gate driver)
 VCL GND = 0 ~ -3.3 (V) (Driving for VcomL , VcomL2 output)
• Output voltage level
 VDH GND = 3.0 ~ (DDVDH-0.5) (V) (Reference power supply for source driver grayscale
voltages)
 Vcom(2) GND (Using for common voltage level)
 VcomH(2) = 3.0 ~ (DDVDH-0.5) (V) (High-level common voltage in alternating driving)
 Vcom L(2) = VCL + 0.5 ~ 1.0 (V) (Low-level common voltage in alternating driving)
 Vcom(2) amplitude ( VcomH(2)-VcomL(2) ) = 6 (V) max.
• Internal step-up circuit output
 DDVDH :VciOUT * 2
 VGH :VciOUT * 6
 VGL :VciOUT * -4 , -5
 VCL :VciOUT * -1


Description

HX8609A is a gate-driver IC for using in systems with color-TFT-liquid-crystal dot-matrix graphic displays. It incorporates a circuit for driving 240 channels of TFT gate-line driving and all the power-supply circuits that are required for liquid crystal displays, and realizes the liquid crystal display by adding external capacitors.

When used with the HX8302A 396-channel source driver with internal RAM, and used with the HX8301A 528-channel source driver with internal RAM, this LSI is suitable for color TFT displays of cellular phones having 132-by-176 and 176-by-240 pixels, respectively. The LSI has functions such as instruction setting from source driver, internal step-up circuit, op-amp circuit, micro-adjustment of power output etc., and HX8609A is suitable for midium-small potable machine such as mobile phone, small-size PDAs.




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