TFT-LCD Supply + DCP + VCOM Amplifier + Gate Pulse Modulator + RESET

The ISL97649B 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. VON and VOFF are generated by a charge pump driven by the switching node of the boost. The ISL97649B 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.

Features

• 2.5V to 5.5V Input

• 1.5A Integrated Boost for Up to 15V AVDD

• VON /VOFF Supplies Generated by Charge Pumps Driven by Boost Switch Node

• 600/1200kHz Selectable Switching Frequency

• Integrated Gate Pulse Modulator

• Reset Signal Generated by Supply Monitor

• Integrated VCOM Amplifier

• DCP

- I2C Serial Interface, address:100111, MSB Left

- Wiper Position Stored in 8-bit Nonvolatile Memory and Recalled on Power-up

- Endurance, 1,000 Data Changes Per Bit

• UVLO, UVP, OVP, OCP, and OTP Protection

• Pb-Free (RoHS Compliant)

• 28 Ld 4X5 QFN

Applications

• LCD Notebook, Tablet, and Monitor