TPS65161B Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments TPS65161B is an integrated bias power supply IC for TV and monitor TFT-LCD panels, generating AVDD, VGH, VGL, and VCOM rails from a single input in a compact Small Outline package. Supports 5 V to 20 V input range with adjustable output voltages and sequencing control. From $1.85 in stock worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 29
- Lifecycle
- ACTIVE
- Datasheet
- TPS65161B Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated multi-rail generation produces AVDD, VGH, VGL, and VCOM voltages from a single 5 V to 20 V input, eliminating discrete boost and inverting converter stages in TFT-LCD bias designs
- Programmable output voltage levels and power sequencing control ensure correct LCD panel startup and shutdown timing, preventing display artifacts and panel damage
- Compact Small Outline package minimizes PCB footprint in slim TV and monitor chassis designs where board space behind the LCD panel is tightly constrained
Applications
The TPS65161B is purpose-built for generating the multiple bias voltages required by TFT-LCD panels in televisions, desktop monitors, and laptop displays, replacing up to 4 discrete converters with a single IC solution. It handles the positive gate drive (VGH), negative gate drive (VGL), analog supply (AVDD), and common electrode voltage (VCOM) rails from a single regulated input, simplifying board design and reducing BOM count. The integrated sequencing and protection features also improve panel reliability in consumer and commercial display end products.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which output rails does the TPS65161B generate and what voltage range does each support for TFT-LCD bias?
The TPS65161B generates four key TFT-LCD bias rails: AVDD (positive analog supply, typically 10 V to 18 V), VGH (positive gate high voltage, typically 15 V to 40 V), VGL (negative gate voltage, typically -5 V to -15 V), and VCOM (common electrode voltage). All outputs are adjustable from a single 5 V to 20 V input, covering standard panel requirements for TV and monitor display applications.
How does TPS65161B simplify the power supply design for a 32-inch LCD TV panel compared to a discrete solution?
Using discrete boost and inverting converters to generate 4 bias rails for a 32-inch LCD TV would require at least 4 separate ICs, multiple inductors, and 20 or more passive components. The TPS65161B integrates all 4 switching converters in one Small Outline IC, reducing component count by 60% or more, shrinking PCB area by approximately 50%, and simplifying thermal management while maintaining proper 5 V to 20 V input operation.
What protection and sequencing features does TPS65161B provide to prevent LCD panel damage during power cycling?
The TPS65161B includes programmable power-on and power-off sequencing that controls the order and timing of AVDD, VGH, VGL, and VCOM rail startup and shutdown. This ensures each rail reaches its target voltage—for example, AVDD before VGH—within defined timing windows of milliseconds, preventing gate driver latch-up or pixel stuck conditions. Integrated overcurrent and overvoltage protection further safeguard the LCD panel from fault conditions.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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