BUF16821

AKTIV

16-kanaliger Gamma-Spannungsgenerator und VCOM-Kalibrator mit zwei integrierten Speicherbänken

Jetzt bestellen

Datenblatt

document-pdfAcrobat Programmable Gamma-Volt Generator & Vcom Calibrator w/Integrated 2-Bank Memory datasheet (Rev. C) (Englisch)

BUF16821

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Display type

LCD unipolar

IC integration

Gamma buffer, VCOM

Vin (min) (V)

9

Vin (max) (V)

20

Applications

13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches

Source driver voltage (min) (V)

9

Source driver voltage (max) (V)

20

Level shifter/scan driver (Ch)

0

Features

Gamma buffer, I2C interface, VCOM or op amp

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Display type

LCD unipolar

IC integration

Gamma buffer, VCOM

Vin (min) (V)

9

Vin (max) (V)

20

Applications

13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches

Source driver voltage (min) (V)

9

Source driver voltage (max) (V)

20

Level shifter/scan driver (Ch)

0

Features

Gamma buffer, I2C interface, VCOM or op amp

Rating

Catalog

Operating temperature range (°C)

-40 to 85

HTSSOP (PWP)

28

62.08 mm² (9.7 mm × 6.4 mm)

10-BIT RESOLUTION
16-CHANNEL P-GAMMA
2-CHANNEL P-V_COM
16x REWRITABLE NONVOLATILE MEMORY
TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
RAIL-TO-RAIL OUTPUT
- 300mV Min Swing-to-Rail (10mA)
- > 300mA Max I_OUT
LOW SUPPLY CURRENT
SUPPLY VOLTAGE: 9V to 20V
DIGITAL SUPPLY: 2V to 5.5V
I²C™ INTERFACE: Supports 400kHz and 3.4MHz
APPLICATIONS
- 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.

10-BIT RESOLUTION
16-CHANNEL P-GAMMA
2-CHANNEL P-V_COM
16x REWRITABLE NONVOLATILE MEMORY
TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
RAIL-TO-RAIL OUTPUT
- 300mV Min Swing-to-Rail (10mA)
- > 300mA Max I_OUT
LOW SUPPLY CURRENT
SUPPLY VOLTAGE: 9V to 20V
DIGITAL SUPPLY: 2V to 5.5V
I²C™ INTERFACE: Supports 400kHz and 3.4MHz
APPLICATIONS
- 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 offers 16 programmable gamma channels and two programmable V_COM channels.

The final gamma and V_COM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF16821 supports up to 16 write operations to the on-chip memory.

The BUF16821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and V_COM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load. All channels are programmed using an I²C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.

The BUF16821 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 20V. The BUF16821 is offered in a HTSSOP-28 PowerPAD™ package, and is specified from -40°C to +85°C.

The BUF16821 offers 16 programmable gamma channels and two programmable V_COM channels.

The final gamma and V_COM values can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF16821 supports up to 16 write operations to the on-chip memory.

The BUF16821 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves.

All gamma and V_COM channels offer a rail-to-rail output that typically swings to within 150mV of either supply rail with a 10mA load. All channels are programmed using an I²C interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz.

The BUF16821 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 20V. The BUF16821 is offered in a HTSSOP-28 PowerPAD™ package, and is specified from -40°C to +85°C.

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Neueste englische Version herunterladen	Datum
*	Datenblatt	Programmable Gamma-Volt Generator & Vcom Calibrator w/Integrated 2-Bank Memory datasheet (Rev. C)			12.07.2011
	Anwendungshinweis	Driving Capacitive Loads with Gamma Buffers			20.11.2012

Design und Entwicklung

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