BUF16821BIPWPR by Texas Instruments | Other Power Management | Avnet AMERICAS
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BUF16821BIPWPR

Texas Instruments

Programmable Gamma-Voltage Generator 28-Pin HTSSOP EP T/R

Manufacturer Part #: BUF16821BIPWPR

Alternate Part #: BUF16821BIPWPR


RoHS Compliant

Descriptions

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Information

The BUF16821 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 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 VCOM 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.

Key Features

  • 10-BIT RESOLUTION
  • 16-CHANNEL P-GAMMA
  • 2-CHANNEL P-VCOM
  • 16x REWRITABLE NONVOLATILE MEMORY
  • TWO INDEPENDENT PIN-SELECTABLE MEMORY BANKS
  • RAIL-TO-RAIL OUTPUT
    • 300mV Min Swing-to-Rail (10mA)
    • > 300mA Max IOUT
  • 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
  • Technical Attributes

    Description
    Value
    Find similar Parts
    Mounting
    Surface Mount
    Lead Finish
    Gold
    Max Processing Temp
    260
    Pin Count
    28
    Product Dimensions
    9.8 x 4.5 x 1.05 mm
    Type
    Programmable Gamma-Voltage Generator
    Supplier Package
    HTSSOP EP
    MSL Level
    2
    Operating Temperature
    -40 to 85 °C
    Category
    Programmable Gamma-Voltage Generator

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000
    HTSN:
    8542390001
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101

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