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Integrated PMIC enables slimmer LCD monitors

Posted: 30 Sep 2009 ?? ?Print Version ?Bookmark and Share

Keywords:power management? PMIC? LCD?

From Maxim Integrated Products comes the MAX17100, an integrated power management IC (PMIC) for gate-in-panel (GIP) LCD monitors.

Developed using Maxim's high-voltage BiCMOS process, the PMIC fulfills all the power requirements for GIP-based LCD monitor panels by integrating a boost regulator, three high-current operational amplifiers, a VCOM calibrator, linear regulators for gate-on and gate-off supplies, and a six-channel level shifter. Designed to enable slimmer monitor form factors, the MAX17100 provides a cost-competitive solution for powering the source drivers, gate drivers, and VCOM backplane in LCD monitor panels.

All power blocks are optimized for GIP-based TFT LCDs. The boost regulator employs a 1.2MHz switching frequency to allow the use of low-profile inductors and ceramic capacitors for slimmer panel designs. Built-in digital soft-start and an integrated power MOSFET control inrush currents while reducing the number of external components required. The MAX17100 delivers output voltages up to 18V from a 2.5V to 6V input while achieving >85 percent efficiency. The integrated operational amplifiers drive the VCOM backplane and feature a 200mA short-circuit current with a 45V/?s slew rate. The six-channel level shifter can swing from +35V to -15V and can swiftly drive capacitive loads. The MAX17100 also includes an I?C-controlled VCOM calibrator that provides 7bit setting accuracy.

This PMIC is available in a 6mm x 6mm, 48-pin TQFN package and operates over the -40C to +85C extended industrial temperature range. Prices start at $1.50 (1,000-up, FOB USA).

For application notes on PMICs click here.

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