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Part: LH1692
Category:
Optoelectronics
-> Drivers/Controllers
-> LCDs
Description: 300-output Tft-lcd Gate Driver ic
Company: Sharp Microelectronics of the Americas
Datasheet: Download LH1692 datasheet File size : 960 kB
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Datasheet text preview:
LH1692
LH1692
DESCRIPTION
The LH1692 is a 300-output TFT-LCD gate driver IC.
300-output TFT-LCD Gate Driver IC
PIN CONNECTIONS
319-PIN TCP TOP VIEW
FEATURES
ˇ Number of LCD drive outputs : 300 ˇ LCD drive output sequence : Output shift direction can be selected OG1/OG300 or OG300/OG1 ˇ Cascade connection : Max. 4 cascades (internal counting system) ˇ Usable with both positive/negative power supplies ˇ Output mode selection Normal mode (1-pulse scanning) Continuous 2-pulse mode (2-pulse scanning) Jumping 2-pulse mode (2-pulse scanning) ˇ LCD drive voltage : +16.0 to +42.0 V ˇ Operating temperature : 30 to + 85 °C ˇ Package : 319-pin TCP (Tape Carrier Package)
VDD VEE VSS VCC VLS TEST1 TEST2 CKV SPV CE1 CE2 R/L MODE1 MODE2 V
LS
1 OG1 2 OG2 3 OG3
VCC VSS VEE VDD
319 318 317 316 315 314 313 312 311 310 309 308 307 306 305 304 303 302 301
CHIP SURFACE
298 OG298 299 OG299 300 OG300
NOTE :
Doesn't prescribe TCP outline.
In the absence of confirmation by device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device.
1
LH1692
PIN DESCRIPTION
PIN NO. 1 to 300 301, 309 302, 318 303, 317 304, 316 305, 315 306, 307 308 309, 310 311 312 313, 314 SYMBOL OG1-OG300 VDD VEE VSS VCC VLS MODE2, MODE1 R/L CE2, CE1 SPV CKV TEST2, TEST1 I/O O I I I I I I DESCRIPTION LCD drive output pins Power supply pins for LCD drive Power supply pins for LCD drive Power supply pins for logic system Power supply pins for logic system Power supply pins for input level shifter Output mode selection pins Pin for selecting bi-directional shift register and setting cascade sequence Cascade sequence setting pins Vertical scanning start pulse input pin Vertical shift clock input pin IC test pins
BLOCK DIAGRAM
M MODE2 306
ODE1 307 R C /L 308
CE2
BI-DIRECTIONAL SHIFT REGISTER 1 CONTROL L OGIC 1 300
309 LEVEL SHIFTER 300
S E1 310 CPV 311 T KV 312 313
TEST2
OUTPUT CIRCUIT EST1 314 1 300
301 319 305 315 304 316 302 318 303 317 VDD VDD VLS VLS VCC VCC VEE VEE VSS VSS
1 OG1
300 OG300
2
LH1692
FUNCTIONAL OPERATIONS OF EACH BLOCK
BLOCK Control Logic Bi-directional Shift Register Level Shifter Output Circuit FUNCTION Used to create signals necessary for mode selecting signal, cascade sequence setting signal and for operation of bi-directional shift register. Used as transfer circuit of LCD drive output start signal. It is possible to set LCD drive output sequence of OG1/OG300 direction or OG300/OG1 direction. Used as circuit which shifts LCD drive output signals transferred by bi-directional shift register to VDD-VEE level. Configured with output buffers to output VDD-VEE level.
INPUT/OUTPUT CIRCUITS
VLS
I
VSS
,
To Internal Circuit
Level Shifter Internal Logic (VLS-0 V/VCC-VSS) (VCC-VSS)
żApplicable pinsĄ SPV, CKV, CE1, CE2, R/L, MODE1, MODE2, TEST1, TEST2
Fig. 1 Input Circuit
VDD
O
From Internal Circuit (VDD-VEE)
VEE
żApplicable pinsĄ OG1-OG300
Fig. 2 Output Circuit
3
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