# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

ROHM BD8143MUV Data Manual

Summary

This high-precision Gamma Correction IC provides a comprehensive, single-chip solution with built-in DACs and multiple amplification channels for TFT LCD panels. Ideal for engineers developing large-screen and HD TV displays, this module offers setting control via serial communication, reducing board complexity and ensuring superior image quality. The manual details complete technical specifications, operational parameters, and application guidelines needed for seamless integration into next-generation display systems.

📄 Preview PAGE OF 11

Page 1 Text Content

Power Supply IC Series for TFT LCD Panels

High-precision Gamma Correction IC with built-in DAC

BD8143MUV No.09035EBT08

●Description This gamma correction voltage generation IC feature built-in DACs and provide a 1chip solution with setting control via serial communications, a high-precision 10-bit DAC, and Buffer Amp (12ch).

●Features 1) 1chip design means fewer components 2) Built-in 10bit DAC 3) DAC output Buffer AMP (12ch) 4) Amp input select (CTL) 5) 3-line serial interface control 6) Thermal shut down 7) Power ON Reset Circuit 8) VQFN032V5050 Package

●Applications These ICs can be used with TFT LCD Panels used by Large-Screen and High-Definition LCD TVs.

●Absolute maximum ratings (Ta=25℃)

Parameter Symbol Limit Unit

Power Supply Voltage 1 DVCC 7 V Power Supply Voltage 2 VCC 20 V REFIN Voltage REF 20 V Amplifier Drive Current Io 30 *1 m A Junction Temperature Tjmax 150 ℃ Power Dissipation Pd 2440 *2 m W Operating Temperature Range Topr -40~+105 ℃ Storage Temperature Range Tstg -55~+150 ℃ *1 Pd, should not be exceeded. *2 Reduced by 19.52m W/°C over 25°C, when mounted on a glass epoxy board. (4-layer 74.2×74.2×1.6mm).

●Operating Condition (Ta=-40℃~105℃)

Limit

Parameter Symbol Unit

MIN MAX

Power Supply Voltage 1 DVCC 2.3 5.5 V Power Supply Voltage 2 VCC 8 18 V REFIN Voltage REF 8 18 V AMP0 Drive Current IOA -40 - m A AMP1~10 Drive Current IOB -20 20 m A AMP11 Drive Current IOC - 40 m A Serial CLK Frequency f CLK - 5 MHz OSC Frequency FOSC - 200 k Hz

www.rohm.com 2009.07 - Rev.B

© 2009 ROHM Co., Ltd. All rights reserved.

Page Summary Contents For ROHM BD8143MUV Data Manual

Page 1 Power Supply IC Series for TFT LCD Panels High-precision Gamma Correction IC with built-in DAC BD8143MUV No.09035EBT08 ●Description This gamma correction voltage generation IC feature built-in DACs an...
Page 2 BD8143MUV Technical Note ●Electrical Characteristics (Unless otherwise specified, Ta=25℃,DVCC=3.3V,VCC=15V) Limit Parameter Symbol Unit Conditions MIN TYP MAX 〔REFIN〕 Sink Current Iref 90 200 µA REF=1...
Page 3 BD8143MUV Technical Note ●Pin No ●Block Diagram VDD VCC REFIN VCC VDAC VDAC VCC 24 23 22 21 19 17 18 20 VCC R AMP0 LA REGISTER0 x2 OUT0 REG AMP1 REGISTER1 x2 OUT1 IN OUT9 OUT2 AMP2 VDD REGISTER2 x2 OU...
Page 4 BD8143MUV Technical Note ●Block Operation ・REG REG amplifiers the voltage applied to REFIN by 0.5x and output it to the VDAC pin. Connect a 1µF phase compensation capacitor to the VDAC pin. ・DAC Contr...
Page 5 BD8143MUV Technical Note ●Serial Communication The serial data control block is composed of Shift-Register, DAC Register and DAC circuit. The DAC register memorizes data from the serial interface (LAT...
Page 6 BD8143MUV Technical Note ●Serial Communication Timing Chart LATCH t WL t WH t CL t LA Fig.4 ●Timing Standard Value LIMIT Parameter Symbol Unit Min. Typ. Max. LATCH Set up time t LC 0.1 - - us SDIN Set...
Page 7 BD8143MUV Technical Note ●Data writing time for register Data writing time for register depend on frequency of CLK. Below formula shows data writing time for all registers. (Because data writing time ...
Page 8 BD8143MUV Technical Note ●Input Output Circuit (BD8143MUV) 1.LATCH 2.SDIN 3.CLK 4.SDOUT 6.CT DVCC DVCC GND GND 14.OUT0 15.OUT1 16.OUT2 17.OUT3 18.OUT4 19.OUT5 9.OSC 11. CTL 22.OUT6 23.OUT7 24.OUT8 25....
Page 9 BD8143MUV Technical Note ●Notes for use 1) Absolute maximum ratings Use of the IC in excess of absolute maximum ratings such as the applied voltage or operating temperature range may result in IC dama...
Page 10 BD8143MUV Technical Note ●Ordering part number Part No. Part No. Package Packaging and forming specification MUV: VQFN032V5050 E2: Embossed tape and reel VQFN032V5050 <Tape and Reel information>...
Page 11 Notice No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without not...

Manual Details

Brand ROHM
Pages 11
File Size 326.12 KB
Published June 02, 2026
54 views

Enter the captcha to get the download link:

captcha

Frequently Asked Questions

What types of devices are these ICs designed to power?

They can be used with TFT LCD Panels intended for Large-Screen and High-Definition LCD TVs.

How is the gamma correction voltage adjusted or controlled?

It provides setting control via a three-line serial communication interface, featuring built-in DACs and Buffer Amps.

What are the required operating voltage ranges (MIN/MAX)?

DVCC must be between 2.3V and 5.5V; VCC and REF tension range from 8V to 18V.

Are these products suitable for safety-critical applications?

No, the products are not designed or manufactured for use in equipment that requires an extremely high level of reliability.