Overview: High-Performance LCD Bias Supply with Dual Outputs
The TPS65122 from Texas Instruments is a compact, integrated TFT LCD bias power supply IC that simplifies system design by delivering both positive and negative voltages required by LCD panels. With an input range of 2.7V to 5.5V and built-in charge pump topologies, this device eliminates the need for external inductors, reducing BOM cost and saving board space.
Its WQFN packaging and low-power architecture make it well-suited for mobile and portable systems. With enhanced protection mechanisms, the TPS65122 ensures robust performance in industrial and consumer applications.
🔥 Best-Selling Products
Key Technical Specifications of TPS65122
| Parameter | Specification |
|---|---|
| Input Voltage Range | 2.7V to 5.5V |
| Output Voltage | Dual (positive and negative, adjustable) |
| Topology | Charge Pump |
| Quiescent Current | Low, ideal for battery-powered systems |
| Protections | Thermal Shutdown, Overcurrent Protection |
| Package | WQFN |
Why Choose TPS65122 vs Standard LCD Power ICs?
The TPS65122 is engineered for space- and power-constrained environments where efficient LCD biasing is essential. Unlike bulkier solutions that require inductors or additional regulators, it offers a compact dual-output design with integrated protection. This helps designers save board space and simplify system layout.
Backed by IC Manufacturer‘s trusted inventory and quality control, engineers can rely on consistent supply and performance for volume production and prototyping.
🌟 Featured Products
-
“Buy MAX9312ECJ+ Precision Voltage Comparator in DIP Package for Reliable Performance”
-
QCC-711-1-MQFN48C-TR-03-1 Bluetooth Audio SoC with MQFN48C Package
-
0339-671-TLM-E Model – High-Performance TLM-E Package for Enhanced Functionality
-
1-1415898-4 Connector Housing, Electrical Wire-to-Board, Receptacle, Packaged
Expanded Technical Parameters
| Feature | Description |
|---|---|
| Input Voltage Range | 2.7V to 5.5V |
| Output Voltages | Positive and Negative (adjustable) |
| Topology | Charge Pump |
| Package | WQFN |
| Protection | Thermal Shutdown, Overcurrent |
| Typical Use Cases | Compact TFT LCD Modules |
Typical Applications of TPS65122
- Medical displays in portable diagnostic equipment
- Industrial LCD operator panels
- Consumer handheld electronics with embedded LCD screens
Frequently Asked Questions (FAQ)
What is the function of the TPS65122?
It provides dual output voltages (positive and negative) specifically tailored to bias TFT LCD panels in space-constrained applications.
Is the TPS65122 suitable for low-power designs?
Yes, thanks to its low quiescent current and efficient charge pump operation, it is ideal for battery-operated systems requiring extended run-time.
📩 Contact Us
Does this IC require external inductors?
No. The integrated charge pump topology eliminates the need for external inductors, simplifying layout and reducing cost.
What protections are built into the TPS65122?
It includes both thermal shutdown and overcurrent protection to guard against faults during abnormal operating conditions.
What makes this IC ideal for portable LCD applications?
The combination of compact WQFN packaging, wide input range, and integrated features make it an efficient and reliable choice for powering LCD displays in portable devices.
