The TPS65150 device 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 device provides an integrated high current buffer to provide the VCOM voltage for the TFT backplane.
Two regulated adjustable charge pump driver provide the positive V(VGH) and negative V(VGL) bias voltages for the TFT. The device incorporates adjustable power-on sequencing for V(VGL) as well as for V(VGH). This avoids any additional external components to implement application specific sequencing. The device has an integrated high-voltage switch to isolate V(VGH).
The same internal circuit can also be used to provide a gate shaping signal of V(VGH) for the LCD panel controlled by the signal applied to the CTRL input. For highest safety, the TPS65150 device has an integrated adjustable shutdown latch feature, which allows application-specific flexibility. The device monitors the outputs (V(VS), V(VGL), V(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.
| Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | TPS65150 Low Input Voltage, Compact LCD Bias IC With VCOM Buffer datasheet (Rev. B) | PDF | HTML | Jan 7, 2016 |
| Application note | Basic Calculation of a Boost Converter's Power Stage (Rev. D) | PDF | HTML | Oct 28, 2022 | |
| Application note | Understanding Undervoltage Lockout in Power Devices (Rev. A) | Sep 19, 2018 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | Jun 25, 2018 | ||
| Application note | How to Calculate the Output Voltage Ranges of the Charge Pumps in the TPS65150 | Feb 6, 2017 | ||
| Technical article | Waveform audit: my boost converter has an off-ramp! | PDF | HTML | Jul 6, 2016 | |
| Technical article | Pump it up with charge pumps – Part 1 | PDF | HTML | Feb 1, 2016 | |
| Application note | Generation of a VCOM buffer input using PWM signal | Dec 21, 2015 | ||
| User guide | Evaluation Module for TPS65150 Low Input Voltage, Compact LCD Bias IC With VCOM (Rev. A) | Oct 5, 2015 | ||
| Application note | Minimizing Ringing at the Switch Node of a Boost Converter | Sep 15, 2006 |
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The TPS65150 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 (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 24 | Ultra Librarian |
| VQFN (RGE) | 24 | Ultra Librarian |
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