LC75843UGA: LCD Driver, 1/1 to 1/4 Duty, General-Purpose

The LC75843UGA is the 1/1 to 1/4 duty general-purpose microprocessor-controlled LCD driver that can be used in applications such as Automotive display. In addition to being able to drive up to 100 segments directly, the LC75843UGA can also control up to 4 general-purpose output ports. Because it has the PWM output of a maximum of 3ch, the brightness control of the LED backlight of RGB can be done. Incorporation of an oscillation circuit helps to reduce the number of external resistors and capacitors required.

Features
  • Support for static(1/1duty) or 1/2-duty 1/2-bias or 1/3-duty 1/3-bias or 1/4-duty 1/3-bias drive techniques under serial data control.When 1/1-duty : Capable of driving up to 28 segmentsWhen 1/2-duty : Capable of driving up to 54 segmentsWhen 1/3-duty : Capable of driving up to 78 segmentsWhen 1/4-duty : Capable of driving up to 100 segments
  • Serial data input supports CCB format communication with the system controller. (Support 3.3V and 5V operation)
  • Serial data control of the power-saving mode based backup function and the all segments forced off function.
  • Serial data control of switching between the segment output port and general-purpose output port function. (Support for up to 4 general-purpose output ports)
  • Support for the PWM output function of a maximum of 3ch. (It can output from the general-purpose output port)
  • Support for clock output function of 1ch. (It can output from the general-purpose output port)
  • Serial data control of the frame frequency of the common and segment output waveforms.
  • Serial data control of switching between the internal oscillator operating mode and external clock operating mode.
  • High generality, since display data is displayed directly without the intervention of a decoder circuit.
  • Built-in LCD drive bias voltage stabilization circuit.
  • The INH pin allows the display to be forced to the off state.
  • Incorporation of an oscillator circuit. (Incorporation of resistor and capacitor for an oscillation)
  • Wide range of operating temperature: -40 to +105 [°C]
  • AEC-Q100 qualified and PPAP capable.
Applications
  • LCD panel for car and home general-purpose display.
End Products
  • Instrument Cluster.
  • Car air conditioner (HVAC).
  • Car audio.
  • Industrial instruments.
  • Wattmeter.
Application Notes (4)
Document TitleDocument ID/SizeRevisionRevision Date
LC75843UGA Application Note, Design method of the LCD system using static 1/1-duty LCD panelANDLC75843UGA_1/D (234kB)1Apr, 2014
LC75843UGA Application Note, Design method of the LCD system using static 1/2-duty LCD panelANDLC75843UGA_2/D (241kB)0Apr, 2014
LC75843UGA Application Note, Design method of the LCD system using static 1/3-duty LCD panelANDLC75843UGA_3/D (245kB)0Apr, 2014
LC75843UGA Application Note, Design method of the LCD system using static 1/4-duty LCD panelANDLC75843UGA_4/D (253kB)0Apr, 2014
Package Drawings (1)
Document TitleDocument ID/SizeRevision
TSSOP36 5.6x9.75 / TSSOP36 (275 mil)948BC (60.5kB)A
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
1/1 to 1/4 Duty General-Purpose LCD Display DriverENA2226/D (292kB)2Jan, 2014
Evaluation Board Documents (5)
Document TitleDocument ID/SizeRevisionRevision Date
LC75843UGA LCD Driver IC Evaluation Board User's ManualEVBUM2231/D (1115kB)0Apr, 2014
LC75843UGAGEVB_BOM_ROHS.PDFLC75843UGAGEVB_BOM_ROHS (63kB)0
LC75843UGAGEVB_GERBER.ZIPLC75843UGAGEVB_GERBER (84kB)0
LC75843UGAGEVB_SCHEMATIC.PDFLC75843UGAGEVB_SCHEMATIC (232kB)0
LC75843UGAGEVB_TEST_PROCEDURE.PDFLC75843UGAGEVB_TEST_PROCEDURE (222kB)0
Evaluation/Development Tool Information
ProductStatusComplianceShort Description
LC75843UGAGEVBActivePb-freeGeneral-Purpose LCD Display Driver Evaluation Board
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LC75843UGA-AHActiveAEC Qualified PPAP Capable Pb-free Halide freeTSSOP-36948BC3Tape and Reel1000$0.904
Specifications
ProductSegmentsKey DetectionVDD Min (V)VDD Max (V)VLCD Min (V)VLCD Max (V)VI for Interface (V)Operating Temperature (°C)Output PortsPWM OutputsCharacter GeneratorResetContrast AdjustmentControl Command
LC75843UGA-AH1/2 Duty: 54 (46) Static: 28 (24) 1/3 Duty: 78 (66) 1/4 Duty: 100 (84)4.56.3VDDVDD3.3 or 5.0-40 to 10543
1/1 to 1/4 Duty General-Purpose LCD Display Driver (292kB) LC75843UGA
LC75843UGA Application Note, Design method of the LCD system using static 1/1-duty LCD panel LC75843UGA
LC75843UGA Application Note, Design method of the LCD system using static 1/2-duty LCD panel LC75843UGA
LC75843UGA Application Note, Design method of the LCD system using static 1/3-duty LCD panel LC75843UGA
LC75843UGA Application Note, Design method of the LCD system using static 1/4-duty LCD panel LC75843UGA
EVBUM2231/D - 1115 KB LC75843UGAGEVB
LC75843UGAGEVB BOM ROHS - 63 KB LC75843UGAGEVB
LC75843UGAGEVB GERBER - 84 KB LC75843UGAGEVB
LC75843UGAGEVB SCHEMATIC - 232 KB LC75843UGAGEVB
LC75843UGAGEVB TEST PROCEDURE - 222 KB LC75843UGAGEVB
TSSOP36 5.6x9.75 / TSSOP36 (275 mil) LV8850GA