Support software
BUF16821-Q1
Automotive, 16-CH Gamma-Voltage Generator and Vcom Calibrator with Integrated Two-Bank Memory
Data sheet
BUF16821-Q1
- AEC-Q100 Qualified with:
- Temperature Grade 3: –40°C to 85°C
- HBM ESD Classification 2
- CDM ESD Classification C4B
- 16-Channel P-Gamma, 2-Channel P-VCOM, 10-Bit Resolution
- 16x Rewritable Nonvolatile Memory
- Two Independent Pin-Selectable Memory Banks
- Rail-to-Rail Output:
- 300-mV (Min) Swing-to-Rail (10 mA)
- > 300-mA (Max) IOUT
- Supply Voltage: 9 V to 20 V
- Digital Supply: 2 V to 5.5 V
- I2C™ Interface: Supports 400 kHz and 2.7 MHz
Application
TFT-LCD Reference Drivers
PowerPAD is a trademark of Texas Instruments.
I2C is a trademark of NXP Semiconductors.
All other trademarks are the property of their respective owners.
The BUF16821-Q1 offers 16 programmable gamma channels and two programmable VCOM channels. The final gamma and VCOM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the device supports up to 16 write operations to the on-chip memory.
The device has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves. All gamma and VCOM channels offer a rail-to-rail output that typically swings to within 150 mV of either supply rail with a 10-mA load. All channels are programmed using an I2C interface that supports standard operations up to 400 kHz and high-speed data transfers up to 2.7 MHz.
The device is manufactured using Texas Instruments’ proprietary, state-of-the-art, high-voltage CMOS process. This process offers very dense logic and high supply voltage operation of up to 20 V. The device is offered in an HTSSOP-28 PowerPAD package, and is specified from –40°C to +85°C.
Technical documentation
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View all 1 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | BUF16821-Q1 Programmable Gamma-Voltage Generator and VCOM Calibrator with Integr datasheet | 05 May 2014 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
BUF16821EVM-USB — BUF16821 Evaluation Module USB
The BUF16821EVM-USB is a platform for evaluating the performance of the BUF16821 under various signal, reference, and supply conditions.
User guide: PDF
Support software
SBOC406 — BUF16821EVM-USB Source Code
Supported products & hardware
Products
LCD & OLED display power & drivers
Hardware development
Evaluation board
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HTSSOP (PWP) | 28 | Ultra Librarian |
Ordering & quality
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Information included:
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Support & training
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