The Texas Instruments TPS65190RHDR is a video level shifter — a buffer and level translator designed to sit between a display timing controller and the source driver inputs in LCD panels. Its job is to shift the logic-level control signals up to the higher voltage swing the column drivers need, while buffering the signal integrity across the flex or PCB trace run. The part is rated for a supply range of 12V to 38V, which covers the bias rails used in most mid- to large-format LCD displays, from monitors to TV panels.
Supply range and what it means for the display bias rail
The 12V to 38V supply range is the headline selection parameter. A display using a 12V VGH (gate-on) rail and a separate 30V VCOM driver can both be served by this shifter, but if your panel's source driver logic threshold sits at 8V or below, the lower end of the range may not be a fit — the shifter needs the higher rail to produce the output swing the column drivers expect. The wide upper margin to 38V gives headroom for panels that boost the gate drive voltage to improve pixel charging time at higher refresh rates.
Package and mounting — what the 28-VQFN means for assembly
The TPS65190RHDR is supplied in a 28-VQFN (5x5 mm) package. The exposed pad serves as the thermal path and ground connection.
Lifecycle and sourcing posture
No end-of-life notice or last-time-buy window has been issued. No direct pin-compatible second source or official replacement is listed.