Texas Instruments TPS65680 18-Channel Configurable Level Shifter
Texas Instruments TPS65680 18-Channel Configurable Level Shifter is a fully programmable high-voltage level shifter solution for LCD panels. This device supports up to twelve high-voltage clock outputs in either charge-sharing or gate-voltage shaping configuration and six high-voltage control outputs for generating start, clear/reset, low-frequency ODD / EVEN signals, and panel discharge. The output timing is generated by the level shifter based on a user-programmable pattern sequence. It requires only two connections to the timing controller: a line clock and a start pulse that indicates the start of a new frame. These two signals can be shared between multiple Texas Instruments TPS65680 devices in applications requiring more output channels than one device can generate.Features
- Programmable output pattern
- The same hardware can support different displays
- Ideal for non-standard / small-volume applications
- Pattern changes during development are easy to implement
- A simple 2-wire interface between the level shifter and TCON
- Uses fewer TCON I/O resources / allows smaller TCON package
- Simplifies PCB layout
- The same 2-wire interface can be shared by multiple level shifter devices operating in parallel
- 12 high-voltage clock outputs
- Six high-voltage control outputs
- Advanced functionality
- Gate-voltage shaping
- Charge-sharing
- Low-frequency ODD / EVEN output generation
- Panel discharge during shutdown
- Output overcurrent protection
- Overtemperature protection
- Wide supply voltage range
- VIN supplies from 2.7V to 5.5V
- VGH supplies from 9V to 40V
- VGL supplies from –4V to –18V
- 4mm × 4mm, 32-pin QFN package
Applications
- LCD panels using GIP / GOA / ASG technology
- TVs
- Monitors
- Notebook / tablet PCs
- Industrial equipment
- Public signage
Simplified Schematic
Published: 2018-03-26
| Updated: 2025-07-03
