TPS65150QPWPRQ1

1 FEATURES

• Qualified for Automotive Applications

• AEC-Q100 Qualified With the Following Results:

– Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range

– Device HBM ESD Classification Level H2

– Device CDM ESD Classification Level C6

• 1.8-V to 6-V Input Voltage Range

• Integrated VCOM Buffer

• High Voltage Switch to Isolate VGH

• Gate Voltage Shaping of VGH

• 2-A Internal MOSFET Switch

• Main Output VS up to 15 V With < 1% Output Voltage Accuracy

• Virtual Synchronous Converter Technology

• Negative Regulated Charge Pump Driver VGL

• Positive Regulated Charge Pump Driver VGH

• Adjustable Power On Sequencing

• Adjustable Fault Detection Timing

• Gate Drive Signal for external isolation MOSFET

• Thermal Shutdown Available in TSSOP-24 Package

2 APPLICATIONS

• TFT LCD Displays for Notebooks

• TFT LCD Display for Monitor

• Car Navigation Display

3 DESCRIPTION

The TPS65150-Q1 offers a very compact and small power-supply solution that provides all three voltages required by thin film transistor (TFT) LCD displays. With an input voltage range of 1.8 V to 6 V, the device is ideal for notebooks powered by a 2.5-V or 3.3-V input rail or monitor applications with a 5-V input-voltage rail. Additionally the TPS65150-Q1 provides an integrated high-current buffer to provide the VCOM voltage for the TFT backplane. 

Two regulated adjustable charge-pump drivers provide the positive VGH and negative VGL bias voltages for the TFT. The device incorporates

adjustable power-on sequencing for VGL as well as for VGH. This avoids any additional external components to implement application-specific sequencing. The device has an integrated high-voltage switch to isolate VGH. For the QFN package (RGE), contact TI sales.

One can also use the same internal circuit to provide a gate-shaping signal of VGH for the LCD panel controlled by the signal applied to the CTRL input. For highest safety, the TPS65150-Q1 has an integrated adjustable shutdown latch feature to allow application-specific flexibility. The device monitors the outputs (VS, VGL, VGH); and, as soon as one of the outputs falls below its power-good threshold, the device enters shutdown latch, after its adjustable delay time has passed by.

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