Power Supply IC Series for TFT-LCD Panels Gamma voltage generated IC with built-in DAC No.16035EBT17 BD8149MUV Description The feature of gamma voltage generated IC BD8149MUV provides a single-chip solution with a high-precision 10-bit DAC setting controlled by I2C serial communications interface and a Buffer AMP (12ch). EEPROM auto-read function is also incorporated. Features 1) Single-chip design realizes fewer components 2) Built in 10bit DAC 3) Built in DAC output buffer amplifier (12ch) 4) Double Register synchronous switching function (SEL) 2 5) I C interface (SDA, SCL) STANDARD-MODE, FAST-MODE changeable 6) EEPROM auto-read function 7) Thermal Shut Down circuit 8) Under Voltage Lock Out circuit 9) Power ON Reset circuit 10) Input tolerant (SDA, SCL, EN, EN AR, SEL) 11) VQFN032V5050 package Applications It may be used with TFT-LCD panels, such as big screen and high resolution LCD televisions. Absolute Maximum Ratings (Ta=25) PARAMETER SYMBOL RATING UNIT Power supply voltage1 VDD 4.5 V Power supply voltage2 VCC 19 V REFIN voltage VREFIN 5 V DAC reference voltage VDAC 7 V SEL, A0, A1, A2 Functional pin voltage EN, SLAVE/AR 4.5 V EN AR 2-lines serial pin voltage SDA, SCL 4.5 V Junction voltage Tjmax 150 1 Power dissipation Pd 4560* mW Operating temperature range Topr -25+85 Storage temperature range Tstg -55+150 *1 To use the IC at temperature over 25, derate power rating by 19.52mW /. When mounted on a 4-layer glass epoxy board measuring 74.2 x 74.2 x 1.6mm. www.rohm.com 2016.08 - Rev.B 1/17 2016 ROHM Co., Ltd. All rights reserved. Technical Note BD8149MUV Operating conditions (Ta=-25 85) CONDITION PARAMETER SYMBOL MIN MAX UNIT Power supply voltage1 VDD 2.1 3.6 V Power supply voltage2 VCC 10 18 V 2 3.5 V VCC=10V VCC=11V 2 3.56 V REFIN voltage VREFIN VCC=12V 2 3.62 V VCC=13V 2 3.68 V DAC reference voltage VDAC 2.1 4.5 V SEL, EN, Functional pin voltage 1 -0.1 3.6 V EN AR A0, A1, A2 Functional pin voltage 2 -0.1 VDD V SLAVE/AR 2-line serial pin voltage SDA, SCL -0.1 3.6 V AMP0 I -40 - mA OA output current capability AMP1 10 I -20 20 mA OB output current capability AMP6 I -40 40 mA OC output current capability AMP11 I - 40 mA OD output current capability 2-line serial frequency FCLK - 400 kHz www.rohm.com 2016.08 - Rev.B 2/17 2016 ROHM Co., Ltd. All rights reserved.