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BUF01901AIDRCRG4 Datasheet(PDF) 1 Page - Texas Instruments |
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BUF01901AIDRCRG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page FEATURES D 10-BIT RESOLUTION D RAIL-TO-RAIL OUTPUT D ONBOARD NONVOLATILE MEMORY D IOUT: 100mA D LOW SUPPLY CURRENT: 900µA D SUPPLY VOLTAGE: 7V to 18V D DIGITAL SUPPLY: 2.0V to 5.5V D INDUSTRY-STANDARD, TWO-WIRE INTERFACE D HIGH ESD RATING: 2kV HBM, 500V CDM APPLICATIONS D LCD PANEL VCOM CALIBRATION D LCD PANEL BRIGHTNESS AND CONTRAST CONTROL D POTENTIOMETER REPLACEMENT D MOTOR DRIVE D PROGRAMMABLE POWER SUPPLY D PROGRAMMABLE OFFSET ADJUSTMENT D ACTUATOR CONTROL BUF01900, BUF01901 RELATED PRODUCTS FEATURES PRODUCT 22V High Supply Voltage Gamma Buffers BUF11705 12--Channel Programmable Buffer, 10-Bit, VCOM BUF12800 20-Channel Programmable Buffer, 10-Bit, VCOM BUF20800 16-Channel Programmable Buffer with Memory BUF16820 20-Channel Programmable Buffer with Memory BUF20820 DESCRIPTION The BUF01900 and BUF01901 provide a programmable voltage output with 10-bit resolution. Programming of the output occurs through an industry-standard, two-wire serial interface. Once the correct VCOM voltage is established it can easily be stored into the integrated nonvolatile memory. An initial output voltage and adjustment range can be set by an external resistor-divider. With its large output current capability (up to 100mA), the BUF01900 and BUF01901 are ideally suited as programmable VCOM calibrators in LCD panels. The BUF01901 has the digital-to-analog converter (DAC) output brought out directly. It has a slightly lower cost than the BUF01900, and works very well with the integrated VCOM in traditional gamma buffers such as the BUFxx702, BUFxx703, BUFxx704 and BUF11705. The BUF01900 and BUF01901 are both available in TSSOP-8 and 3mm x 3mm DFN-10 packages. The DFN-10 package (only 0.9mm in height) is especially well-suited for notebook computers. Both devices are specified from −40 °C to +85°C. Analog 7V to 18V Digital 2V to 5.5V BIAS SDA Input Control Logic SCL A0 10−Bit DAC 4x OTP ROM Switch Control Voltage Regulator BUF01900 250k Ω Buffer VCOM BUF01900 BUF01901 SBOS337A − OCTOBER 2006 − REVISED OCTOBER 2006 Programmable Voltage Source with Memory PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. www.ti.com Copyright 2006, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a registered trademark of Texas Instruments. All other trademarks are the property of their respective owners. |
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