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The RTQ6749 is a programmable power management IC with an I<SUP>2</SUP>C interface, designed for automotive TFT-LCD panel applications. It integrates two synchronous boost converters for PAVDD and VGH, a synchronous NAVDD buck-boost converter, a VGL charge pump, a high-performance VCOM with 8-bit calibration, and a RESET voltage detector. The device is available in a compact WQFN-32L 5x5 package.The RTQ6749 operates from a 2.5V to 5.5V input voltage range. Its high switching frequency minimizes interference with the AM radio band. Comprehensive protection features include overcurrent protection for all internal-switch converters and output-fault shutdown, which protects all converters against output-fault and asserts a FAULT signal for communication with automotive systems. Programmable soft-start functions for all output voltages help limit input inrush current during startup. The recommended junction temperature is -40°C to 150°C, and the recommended ambient temperature is -40°C to 105°C.
RTQ6749-QT-A2 Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>AEC-Q100 Grade 2 Qualified </li><li>2.5V to 5.5V Input Supply Voltage </li><li>I<sup>2</sup>C Interface </li><li>Power-On and Power-Off Sequence Free </li><li>PAVDD Programmable Output Voltage 5V to 7.3V </li><li>PAVDD Output Current Capability up to 200mA </li><li>NAVDD Programmable Output Voltage -5V to -7.3V </li><li>NAVDD Output Current Capability up to 200mA </li><li>VGH Programmable Output Voltage 7V to 30V </li><li>VGH Output Current Capability Up to 60mA </li><li>VGH Output Voltage Temperature Compensation </li><li>VGL Programmable Output Voltage -6V to -18V </li><li>VGL Output Current Capability Up to 60mA </li><li>VCOM 8-bit Programmable Output Voltage </li><li>Outputs Power-Off Discharge Function </li><li>Programmable Voltage Detector </li><li>Built in UVLO, UVP, OVP, SCP and OTP Protection </li><li>Ambient Temperature Range: -40°C to 105°C </li><li>Junction Temperature Range: -40°C to 150°C </li></ul></div>
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RTQ6749-QT-A2 Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Infotainment LCD Panels </li></ul></div>
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