BUF08832 Series

8-CH Gamma-Voltage Generator and High Slew Rate Vcom with Integrated Two-Bank Memory

Catalog

8-CH Gamma-Voltage Generator and High Slew Rate Vcom with Integrated Two-Bank Memory

Part	Number of Circuits [custom]	Mounting Type	Package / Case	Package / Case [custom]	Package / Case	Current - Output / Channel	Slew Rate	Output Type	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	Supplier Device Package
Texas Instruments BUF08832AIPWPR	8	Surface Mount	20-PowerTSSOP	4.4 mm	0.173 in	30 mA	45 V/µs	Rail-to-Rail	9 V	20 V	20-HTSSOP

Catalog

8-CH Gamma-Voltage Generator and High Slew Rate Vcom with Integrated Two-Bank Memory

Key Features

• 10-BIT RESOLUTION8-CHANNEL P-GAMMA1-CHANNEL P-VCOMHIGH SLEW RATE VCOM: 45V/µs16x REWRITABLE NONVOLATILE MEMORYTWO INDEPENDENT PIN-SELECTABLE MEMORY BANKSRAIL-TO-RAIL OUTPUT300mV Min Swing-to-Rail (10mA)> 300mA Max IOUTLOW SUPPLY CURRENTSUPPLY VOLTAGE: 9V to 20VDIGITAL SUPPLY: 2V to 5.5VTWO-WIRE INTERFACE: Supports 400kHz and 3.4MHzAPPLICATIONSTFT-LCD REFERENCE DRIVERSAll trademarks are the property of their respective owners.10-BIT RESOLUTION8-CHANNEL P-GAMMA1-CHANNEL P-VCOMHIGH SLEW RATE VCOM: 45V/µs16x REWRITABLE NONVOLATILE MEMORYTWO INDEPENDENT PIN-SELECTABLE MEMORY BANKSRAIL-TO-RAIL OUTPUT300mV Min Swing-to-Rail (10mA)> 300mA Max IOUTLOW SUPPLY CURRENTSUPPLY VOLTAGE: 9V to 20VDIGITAL SUPPLY: 2V to 5.5VTWO-WIRE INTERFACE: Supports 400kHz and 3.4MHzAPPLICATIONSTFT-LCD REFERENCE DRIVERSAll trademarks are the property of their respective owners.

Description

The BUF08832 offers eight programmable gamma channels and one programmable VCOMchannel. The final gamma and VCOMvalues can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF08832 supports up to 16 write operations to the on-chip memory. The BUF08832 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves. All gamma and VCOMchannels 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 a Two-Wire interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz. The BUF08832 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 BUF08832 is offered in a HTSSOP-20 PowerPAD package, and is specified from –40°C to +85°C. The BUF08832 offers eight programmable gamma channels and one programmable VCOMchannel. The final gamma and VCOMvalues can be stored in the on-chip, nonvolatile memory. To allow for programming errors or liquid crystal display (LCD) panel rework, the BUF08832 supports up to 16 write operations to the on-chip memory. The BUF08832 has two separate memory banks, allowing simultaneous storage of two different gamma curves to facilitate switching between gamma curves. All gamma and VCOMchannels 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 a Two-Wire interface that supports standard operations up to 400kHz and high-speed data transfers up to 3.4MHz. The BUF08832 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 BUF08832 is offered in a HTSSOP-20 PowerPAD package, and is specified from –40°C to +85°C.