0
ACTIVE
Display type |
LCD unipolar |
IC integration |
Gamma buffer, VCOM |
Vin (min) (V) |
4.5 |
Vin (max) (V) |
18 |
Applications |
13 to 21 inches, 21 inches and above, 7 inches or less, 7 to 13 inches |
Level shifter/scan driver (Ch) |
0 |
Features |
Gamma buffer, VCOM or op amp |
Rating |
Catalog |
Operating temperature range (°C) |
-25 to 85 |
HTSSOP (PWP)-20-41.6 mm² 6.5 x 6.4
(1) See Typical Characteristic curves for details.
PowerPAD is a trademark of Texas Instruments Incorporated.
All other trademarks are the property of their respective owners.
The BUFxx704 are a series of multi-channel buffers targeted towards gamma correction in high-resolution LCD panels. They are pin-compatible with the existing BUFxx702 and BUFxx703 families and operate at higher supply voltages up to 18 V (19 V absolute max). The higher supply voltage enables faster response times and brighter images in large-screen LCD panels. This is especially important in LCD TV applications.
The number of gamma correction channels required depends on a variety of factors and differs greatly from design to design. Therefore, 10, 6, and 4 channel options are offered. For additional space and cost savings, a VCOM channel with > 100mA drive capability is integrated into the BUF11704, BUF07704, and BUF05704.
The BUF11704, BUF07704, BUF06704, and BUF05704 are available in the TSSOP-28, TSSOP-20, TSSOP-16, and TSSOP-14 PowerPAD packages for dramatically increased power dissipation capability. This way, a large number of channels can be handled safely in one package.
A flow-through pinout has been adopted to allow simple PCB routing and maintain the cost-effectiveness of this solution. All inputs and outputs of the BUFxx704 incorporate internal ESD protection circuits that prevent functional failures at voltages up to 8 kV (HBM), 2 kV (CDM), and 300 V (MM).
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