DATASHEET
ISL97649AR5566 FN8774
Rev 0.00
September 11, 2015 TFT-LCD Supply + DCP + VCOM Amplifier + Gate Pulse Modulator + RESET Features The ISL97649AR5566 is an Integrated Power Management IC
(PMIC) for TFT-LCDs used in notebooks, tablet PCs and monitors.
The device integrates a boost converter for generating AVDD, an
LDO for VLOGIC. VON and VOFF are generated by a charge pump
driven by the switch node of the boost. The ISL97649AR5566
also includes a VON slice circuit, reset function and a high
performance VCOM amplifier with DCP (Digitally Controlled
Potentiometer) that is used as a VCOM calibrator. 2.5V to 5.5V input 1.5A, 0.18О© integrated boost FET VON/VOFF supplies generated by charge pumps driven by the
boost switch node LDO for VLOGIC channel The AVDD boost converter features a 1.5A/0.18О©пЂ boost FET with
600/1200kHz switching frequency. 600/1200kHz selectable switching frequency The logic LDO includes a 350mA FET for driving the low voltage
needed by external digital circuitry. Reset signal generated by supply monitor The gate pulse modulator can control the gate voltage up to 30V,
and both the rate and slew delay times are selectable. DCP
-I2C serial interface, address: 0101000, MSB left
-Wiper position stored in 8-bit nonvolatile memory and
recalled on power-up
-Endurance, 1,000 data changes per bit Integrated gate pulse modulator Integrated VCOM amplifier The supply monitor generates a reset signal when the system is
powered down.
It provides a programmable VCOM with I2C interface. One VCOM
amplifier is also integrated in the chip. The output of the VCOM is
powered up with the voltage at the last programmed 8-bit …