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ISL45042

Features: • 128-Step Adjustable Sink Current Output• 2.6V to 3.6V Logic Supply Voltage Operating Range• 4.5V to 20V Analog Supply Voltage Range• Rewritable EEPROM for storing the optimum VCOM value• Output Adjustment Enable/Disable Control• Output Guaranteed Mon...

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SeekIC No. : 004379830 Detail

ISL45042: Features: • 128-Step Adjustable Sink Current Output• 2.6V to 3.6V Logic Supply Voltage Operating Range• 4.5V to 20V Analog Supply Voltage Range• Rewritable EEPROM for storing...

ISL45042 Data Sheet

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Part Number:
ISL45042
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• 128-Step Adjustable Sink Current Output
• 2.6V to 3.6V Logic Supply Voltage Operating Range
• 4.5V to 20V Analog Supply Voltage Range
• Rewritable EEPROM for storing the optimum VCOM value
• Output Adjustment Enable/Disable Control
• Output Guaranteed Monotonic Over Temperature
• Two Pin Adjustment, Programming and Enable
• Ultra Thin 8-Pin 3mm x 3mm DFN (0.8mm max)
• Pb-Free Plus Anneal Available (RoHS Compliant)




Application

• LCD Panels




Pinout

Connection Diagram




Specifications

VDD to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+4V
Input Voltages to GND
SET, CE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +4V
AVDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +20V
CTL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +17V
Output Voltages to GND
OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +20V
ESD Rating
HBM for Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.75kV
HBM for CTL to GND (no EEPROM Content Disruption). . . . ...8kV




Description

The VCOM voltage of an LCD panel needs to be adjusted to remove flicker. This part provides a digital interface to control the sink-current output that attaches to an external voltage divider. The increase in output sink current lowers the voltage on the external divider, which is applied to an external VCOM buffer amplifier. Once the desired VCOM setting is obtained, the settings can be stored in the nonvolatile memory, which would then be automatically recalled during every power-up.

The VCOM adjustment and non-volatile memory programming is through a single interface pin. An additional pin is used to prevent programming.

An external resistor attaches to the SET pin, and sets the full-scale sink current that determines the lowest voltage of the external voltage divider.

The ISL45042 is available in an 8-pin 3mm x 3mm Thin DFN package with a maximum thickness of 0.8mm for ultra thin LCD panel design.






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