Overview
The TPS65150PWPRG4, produced by Texas Instruments, is a low input voltage, compact LCD bias IC designed to provide all the necessary voltages for thin film transistor (TFT) LCD displays. This device is particularly suited for applications requiring a small power supply solution, such as notebooks and monitors. It operates with an input voltage range of 1.8 V to 6 V, making it versatile for various power input rails. The TPS65150PWPRG4 integrates an high current buffer for the VCOM voltage, regulated charge pump drivers for positive and negative bias voltages, and a high-voltage switch to isolate the gate voltage (V(VGH)).
Key Specifications
| Parameter | Minimum | Nominal | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage Range (VI) | 1.8 | - | 6 | V |
| Boost Converter Output Voltage (VO) | - | - | 15 | V |
| Inductor Value | 4.7 | - | - | µH |
| Operating Ambient Temperature (TA) | -40 | - | 85 | °C |
| Operating Junction Temperature (TJ) | -40 | - | 125 | °C |
| Junction-to-Ambient Thermal Resistance (RθJA) | - | - | 36.4 (HTSSOP), 34.3 (VQFN) | °C/W |
| Package Type | - | - | HTSSOP-24, VQFN-24 | - |
| Package Size | - | - | 7.80 mm × 4.40 mm (HTSSOP), 4.00 mm × 4.00 mm (VQFN) | - |
Key Features
- 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
Applications
- TFT LCD Displays for Notebooks
- TFT LCD Displays for Monitors
- Car Navigation Displays
Q & A
- What is the input voltage range of the TPS65150PWPRG4? The input voltage range is from 1.8 V to 6 V.
- What types of packages are available for the TPS65150PWPRG4? The device is available in HTSSOP-24 and VQFN-24 packages.
- What is the maximum output voltage of the boost converter? The maximum output voltage of the boost converter is 15 V.
- Does the TPS65150PWPRG4 have integrated protection features? Yes, it includes out-of-regulation protection, overvoltage protection, and thermal shutdown.
- What is the purpose of the integrated VCOM buffer? The integrated VCOM buffer provides the VCOM voltage for the TFT backplane.
- Can the power-on sequencing be adjusted? Yes, the power-on sequencing for V(VGL) and V(VGH) can be adjusted.
- What is the operating ambient temperature range? The operating ambient temperature range is from -40°C to 85°C.
- Does the device support external isolation MOSFET? Yes, it provides a gate drive signal for an external isolation MOSFET.
- What is the junction-to-ambient thermal resistance for the HTSSOP package? The junction-to-ambient thermal resistance for the HTSSOP package is 36.4°C/W.
- Is the device suitable for safety-critical applications? The device has several safety features, but it is important to refer to the datasheet and application notes for specific use in safety-critical applications.
