3-CH LCD Bias w/ GPM, VCOM Buffer & Gate Driver for Isolation Switch - TPS65150

TPS65150 (ACTIVE)

3-CH LCD Bias w/ GPM, VCOM Buffer & Gate Driver for Isolation Switch

Recommended alternative parts

  • TPS65100  -  Same features as TPS65150 except there is a LDO for Vlogic

Description

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 6.0 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 provides an integrated high current buffer to provide the VCOM voltage for the TFT backplane.

Two regulated adjustable charge pump driver 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.

The same internal circuit can also be used 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 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.

Features

  • 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
  • Available in QFN-24 Package
  • APPLICATIONS
    • TFT LCD Displays for Notebooks
    • TFT LCD Display for Monitor
    • Car Navigation Display

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Parametrics Compare all products in LCD/OLED Display Bias Solutions

 
Target Application
Vin (Min) (V)
Vin (Max) (V)
VCOM
Charge Pump
DC/DC Converter
LDO
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
TPS65150
Medium Form Factor    
1.8    
6    
1 OpAmp - Unity Gain    
2    
1    
0    
Catalog    
-40 to 85    
24HTSSOP
24VQFN    
1.10 | 1ku    

Other qualified versions of TPS65150

Version Part Number Definition
Automotive TPS65150-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects
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