DATASHEET ISL76534 FN8866 Rev 0.00 Ultra-Low Power 14-Channel Programmable Gamma Buffer with Integrated July 27, 2016 EEPROM The ISL76534 is a programmable gamma buffer for TFT-LCDs Features featuring ultra-low power operation. The ISL76534 contains an 2 14-channel gamma references, 10-bit resolution with I C programmable, 10-bit, 14-channel gamma reference buffered outputs voltage generator with buffered outputs, a 10-bit programmable V calibrator, a high output current V COM COM 1-channel V calibrator with 10-bit resolution COM amplifier, and internal EEPROM to store all reference voltage High output current V amplifier COM data. The EEPROM features an endurance of 10,000 write Ultra-low power operation, ideal for automotive displays: cycles and a data retention of 20 years at 105C. Typical quiescent power, 12mW at 8V AV DD Combining gamma and V reference voltage generators COM EEPROM data retention: 20 years at 105C with low power operation and EEPROM, the ISL76534 provides EEPROM endurance: 10,000 write cycles a complete reference voltage solution ideal for TFT-LCD displays. - Read/write capable over 2.25V to 3.6V D range VDD The ISL76534 is available in a super thin (height = 0.4mm 6.3V to 19V analog supply operating range maximum) 28 Ld 4mmx5mm X2QFN thermally enhanced 2.25V to 3.6V digital supply operating range package. The device is specified for operation across the Power Supply Rejection Ratio (PSRR): 75dB typical ambient temperature -40C to +105C. 28 Ld 4mmx5mm super thin X2QFN package Applications Pb-free (RoHS compliant) Automotive infotainment display AEC-Q100 qualified Automotive Center Information Display (CID) Automotive smart mirrors Automotive instrument cluster display Automotive TFT-LCD display GAMMA TFT-LCD PANEL TIMING CONTROL COLUMN DRIVERS (TCON) TFT-LCD SCREEN ISL76534 GAMMA BUFFER (COLUMN DRIVER DAC REFERENCE STORAGE DATA VOLTAGES), AND VCOM CAPACITOR LINE REFERENCES SELECT LINE LC PIXEL GATE V V DRIVERS COM COM TFT CALIBRATOR DRIVER COMMON (V ) COM FIGURE 1. TYPICAL APPLICATION: TFT-LCD GAMMA REFERENCE VOLTAGE GENERATOR FN8866 Rev 0.00 Page 1 of 24 July 27, 2016ISL76534 Table of Contents Block Diagram 3 Ordering Information 4 Pin Configuration 4 Pin Descriptions . 4 Absolute Maximum Ratings . 6 Thermal Information . 6 Recommended Operating Conditions 6 Electrical Specifications . 6 Typical Performance Curves 8 General Description 12 2 I C Digital Interface 12 Data Validity 12 START and STOP Condition . 12 Byte Format 12 Acknowledge (ACK) 12 Not Acknowledge (NACK) . 13 Device Address and R/W Bit 13 Application Information . 13 ISL76534 Communication Protocol 13 Register Description and Pointer . 13 Write Operation 15 Write Timing Diagrams 16 Read Operation 17 Read Timing Diagram . 18 Data Word (WRITE/READ) 19 DAC Transfer Function of OUT1-OUT14 19 DAC Output Accuracy 19 DAC Reference Voltage . 19 DAC Channel Outputs 19 VCOM Amplifier . 19 Output Stability . 20 Write Protection (WP) 20 Writing to the EEPROM . 20 Recalling The EEPROM . 20 EEPROM Default Values 20 UVLO and Output Enable 21 Power Sequencing . 21 Thermal Shutdown 21 Power Dissipation . 21 Power Supply Bypassing and Printed Circuit Board Layout . 21 General PowerPAD Design Considerations . 21 Typical Applications 22 Revision History 23 About Intersil 23 Package Outline Drawing 24 FN8866 Rev 0.00 Page 2 of 24 July 27, 2016