TPS65150 Universal, compact LCD bias Power Supply with integrated VCOM Buffer | TI.com

TPS65150 (ACTIVE) Universal, compact LCD bias Power Supply with integrated VCOM Buffer

 

Recommended alternative parts

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

Description

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.

Features

  • 1.8-V to 6-V Input Voltage Range
  • Integrated VCOM Buffer
  • High-voltage Switch to Isolate V(VGH)
  • Gate-Voltage Shaping of V(VGH)
  • 2-A Internal MOSFET switch
  • Main Output V(VS) up to 15 V With <1% Output Voltage Accuracy
  • Virtual-Synchronous Converter Technology
  • Regulated Negative Charge Pump Driver V(VGL)
  • Regulated Positive Charge Pump Driver V(CPI)
  • Adjustable Power-On Sequencing
  • Adjustable Fault Detection Timing
  • Gate Drive Signal for External Isolation MOSFET
  • Out-of-Regulation Protection
  • Overvoltage Protection
  • Thermal Shutdown
  • Available in HTSSOP-24 Package
  • Available in VQFN-24 Package

All trademarks are the property of their respective owners.

Parametrics

Compare all products in LCD & OLED display power & drivers Email Download to Excel
Part number Order Display type IC integration Vin (Min) (V) Vin (Max) (V) Source driver voltage (Min) (V) Source driver voltage (Max) (V) Level shifter/scan driver (ch) V_POS (Min) (V) V_POS (Max) (V) V_NEG (Min) (V) V_NEG (Max) (V) Special function Topology Type Rating Package size: mm2:W x L (PKG) Package Group
TPS65150 Order now LCD Unipolar     LCD Bias
VCOM    
1.8     6       15     0             VCOM/OpAmp
Adjustable Sequencing
GPM/GVS    
        Catalog     24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
HTSSOP | 24
VQFN | 24    
TPS65100 Order now LCD Unipolar     LCD Bias
VCOM    
2.7     5.8     5     15     0             VCOM/OpAmp             Catalog     24HTSSOP: 34 mm2: 4.4 x 7.8 (HTSSOP | 24)
24VQFN: 16 mm2: 4 x 4 (VQFN | 24)    
HTSSOP | 24
VQFN | 24    
TPS65120 Order now LCD Unipolar     LCD Bias     2.5     5.5     3     5.6     0     3     20     -18     -1.5     Output Discharge             Catalog     16VQFN: 9 mm2: 3 x 3 (VQFN | 16)     VQFN | 16    
TPS65149 Order now LCD Unipolar     LCD Bias
LCD Level shifter
VCOM    
3     6     7     18     8             VCOM/OpAmp
I2C I/F
Output Discharge
Reset Generator
Level Shifter
Temperature Sensor/Compensation    
        Catalog     56VQFN: 49 mm2: 7 x 7 (VQFN | 56)     VQFN | 56    
TPS65640 Order now LCD Bipolar
LCD Unipolar    
LCD Bias
VCOM    
2.5     5.5     -8     12.7     0             Adjustable Sequencing
GPM/GVS
I2C I/F
Output Discharge
Reset Generator
Temperature Sensor/Compensation
VCOM/OpAmp    
        Catalog     28WQFN: 19 mm2: 3.5 x 5.5 (WQFN | 28)     WQFN | 28