Datasheet > BU91799KV-M

BU91799KV-M

更新时间： 2022-02-26 12:55:29

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
29页	1866K
描述
Low Duty LCD Segment Driver for Automotive Application

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BU91799KV-M 数据手册

Datasheet

Low Duty LCD Segment Driver

for Automotive Application

MAX 200 segments (SEG50×COM4)

BU91799KV-M

General Description

Key Specifications

BU91799KV-M is a 1/4 duty general-purpose LCD driver

that can be used for automotive applications and can

drive up to 200 LCD Segments.

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

is qualified AEC-Q100 Grade2, as required for

automotive applications.

It has integrated display RAM for reducing CPU load.

Also, it is designed with low power consumption and no

external component needed..

■

Supply Voltage Range:

+2.5V to +6.0V

-40°C to +105°C

200 Segments

1/4

LCD Drive Power Supply Range:

Operating Temperature Range:

Max Segments:

Display Duty:

Bias:

1/2, 1/3 selectable

2wire Serial Interface

Interface:

Special Characteristics

■

ESD(HBM):

Latch-up current:

±2000V

±100mA

Features



AEC-Q100 Qualified ^(Note)

Integrated RAM for Display Data (DDRAM):

50 x 4 bit (Max 200 Segment)

Package

W (Typ.) x D (Typ.) x H (Max.)



LCD Drive Output :

4 Common Output, Max 50 Segment output

Integrated Buffer AMP for LCD Driving

Integrated Oscillator Circuit



No External Components

Low Power Consumption Design

Independent Power Supply for LCD Driving

Integrated Electrical Volume Register (EVR) function

(Note) Grade 2

Applications

VQFP64

12.00mm x 12.00mm x 1.60mm



Instrument Clusters



Climate Controls

Car Audios / Radios

Metering



White Goods



Healthcare Products

Battery Operated Applications

etc.

Typical Application Circuit

VLCD

VDD

COM0

VDD

VLCD

COM1

COM2

COM3

C > 0.1uF

SDA

SCL

Controller

Segment

LCD

VDD

SEG0

SEG1

INHb

OSCIN

TEST1

Insert Capacitors between

VDD / VSS and VLCD / VSS

SEG49

VSS

Internal Clock Mode

Figure 1. Typical Application Circuit

○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays.

www.rohm.com

TSZ02201-0P4P0D301050-1-2

8. Feb. 2016 Rev.001

1/25

TSZ22111･14･001

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