Overview
The TPS65145PWPR, produced by Texas Instruments, is a part of the TPS6514x series, which offers a compact and efficient power supply solution specifically designed for thin film transistor (TFT) LCD displays. This device provides all three voltages required by TFT LCD displays, making it an ideal choice for various display applications. The main output is a 1.6-MHz fixed frequency PWM boost converter that supplies the source drive voltage for the LCD display. Additionally, the device includes an auxiliary 3.3-V linear regulator controller, which can generate a logic power rail for systems powered by a 5-V supply rail only.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 2.7 V to 5.8 V |
| Switching Frequency | 1.6 MHz |
| Main Output Voltage | Up to 15 V with <1% typical output voltage accuracy |
| Switch Current Limit | Typical 1.37 A (TPS65145) |
| Package Type | 24-Pin HTSSOP and 24-Pin VQFN PowerPAD™ |
| Operating Temperature Range | -40°C to 85°C |
| Number of Independent Adjustable Outputs | 3 |
Key Features
- 2.7-V to 5.8-V Input Voltage Range
- 1.6-MHz Fixed Switching Frequency
- 3 Independent Adjustable Outputs
- Main Output up to 15 V With <1% Typical Output Voltage Accuracy
- Virtual Synchronous Converter Technology
- Negative Regulated Charge Pump Driver V_O2 and Positive Charge Pump Converter V_O3
- Auxiliary 3.3-V Linear Regulator Controller
- Internal Soft Start and Internal Power-On Sequencing
- Fault Detection of All Outputs (TPS65140 and TPS65145)
- Thermal Shutdown and System Power Good Output
Applications
The TPS65145PWPR is primarily used in thin film transistor (TFT) LCD displays, providing the necessary voltages for the display's operation. It is particularly useful in applications where compact and efficient power supply solutions are required, such as in portable electronics, automotive displays, and industrial control panels.
Q & A
- What is the input voltage range of the TPS65145PWPR?
The input voltage range is from 2.7 V to 5.8 V. - What is the switching frequency of the main output?
The switching frequency is 1.6 MHz. - How many independent adjustable outputs does the TPS65145PWPR have?
The device has 3 independent adjustable outputs. - What is the maximum output voltage of the main output?
The main output can go up to 15 V with less than 1% typical output voltage accuracy. - What type of packages is the TPS65145PWPR available in?
The device is available in 24-Pin HTSSOP and 24-Pin VQFN PowerPAD™ packages. - What is the operating temperature range of the TPS65145PWPR?
The operating temperature range is from -40°C to 85°C. - Does the TPS65145PWPR have fault detection capabilities?
Yes, the TPS65140 and TPS65145 models have fault detection capabilities for all outputs. - What happens if one of the outputs is out of regulation?
If one of the outputs is out of regulation, the TPS65140 and TPS65145 models will go into shutdown. The device can be enabled again by toggling the input or the enable (EN) pin to GND. - Does the TPS65145PWPR have thermal shutdown protection?
Yes, the device has thermal shutdown protection. - Is there a system power good output on the TPS65145PWPR?
Yes, the device has a system power good output to indicate when all supply rails are acceptable.
