Datasheet > BU91R63CH-M

BU91R63CH-M

更新时间： 2023-09-03 20:36:31

品牌	Logo	应用领域
罗姆 - ROHM		驱动控制器微控制器驱动器
页数	文件大小	规格书
43页	2684K
描述
BU91R63CH-M3BW是1/4、1/3、1/2占空比、支持Static的COG型车载用通用LCD驱动器，最多可显示176段LCD。本产品支持高液晶电压驱动及高帧频率驱动，也可驱动高显示精度的VA液晶。还支持+105℃动作，符合车载应用要求的AEC-Q 100标准。内置显示用RAM，可减轻微控制器负荷，还无需外置部件，实现了低功耗。具备显示用RAM及寄存器的读取功能，可检测因噪声等导致的误动作。使用ITO电阻测量引脚，更方便进行COG贴装不良的管理。内置有EVR功能，可进行LCD对比度的调节。

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BU91R63CH-M 数据手册

Datasheet

Low Duty LCD Segment Driver

For Automotive COG Application

BU91R63CH-M Max 176 segments (SEG44 x COM4)

General Description

Key Specifications

BU91R63CH-M is a 1/4, 1/3, 1/2 duty or Static COG type

LCD driver that can be used for automotive applications

and can drive up to 176 LCD segments.

 Supply Voltage Range:

 LCD Drive Power Supply Range:

 Operating Temperature Range:

 Max Segments:

+2.7 V to +6.0 V

-40 °C to +105 °C

176 Segments

It can support operating temperature of up to +105 °C and

compliant for AEC-Q100, as required for Automotive

Application. It has integrated display RAM for reducing

CPU load. Also, it is designed with low power

consumption and no external component needed. It

includes read function for display RAM and command

to noise. Also a defective mounting of COG can easily be

controlled by using pins to measure ITO resistance.

 Display Duty:

 Bias:

1/4, 1/3, 1/2, Static Selectable

1/2, 1/3 Selectable

 Interface:

2-wire Serial Interface

Special Characteristics

 ESD(HBM):

 Latch-up Current:

±2,000 V

±100 mA

Features

Applications

 AEC-Q100 Compliant ^{(Note 1)}

 Instrument Clusters

 Climate Controls

 Car Audios / Radios

 Metering

 White Goods

 Healthcare Products

 1/4, 1/3, 1/2 Duty or Static Setting Selectable

1/4 Duty Drive: Max 176 Segments

1/3 Duty Drive: Max 132 Segments

1/2 Duty Drive: Max 88 Segments

Static Drive: Max 44 Segments

 Integrated Buffer AMP for LCD Driving

 Support Read Register and Display RAM Function

 Support ITO Resistance Measurement

 Integrated Oscillator Circuit

 Battery Operated Applications

etc.

 Integrated EVR Function to Adjust LCD Contrast

 Integrated Power On Reset Circuit

 No External Components

Package

Au BUMP Chip

 Low Power Consumption Design

(Note 1) Quality Information:

There is data when LSI was put on a temporary package.

Please use it as reference data.

Typical Application Circuit

[LCD module]

44 x 4 dots

(Top view)

COM

BU91R63CH-M (Bottom view)

VLCD VSS VDD SCL SDA

(Note 2)

SEG

(Note 2) SDA of BU91R63CH-M needs pull-up

resistor because it is an open-drain output.

In case that SCL of MCU has open-drain structure,

it also needs pull-up resistor.

VLCD VSS VDD

MCU

SCL SDA

〇Product structure: Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays

www.rohm.com

TSZ02201-0P4P0D301380-1-2

15.Oct.2019 Rev.002

1/40

TSZ22111 • 14 • 001

12 3 4 5 6 7...43

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型号	品牌	描述	获取价格	数据表
BU91R64CH-M	ROHM	本产品支持高液晶电压驱动及高帧频率驱动，也可驱动高显示精度的VA液晶。而且，具备显示数据及	获取价格
BU91R65CH-M	ROHM	本产品支持高液晶电压驱动及高帧频率驱动，也可驱动高显示精度的VA液晶。而且，具备显示数据及	获取价格
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