BU91799KV-M Datasheet, PDF (1/29 Pages) Rohm – Low Duty LCD Segment Driver for Automotive Application

Datasheet
Low Duty LCD Segment Driver
for Automotive Application
BU91799KV-M MAX 200 segments (SEG50×COM4)
General Description
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..
Features
 AEC-Q100 Qualified ^(Note)
 Integrated RAM for Display Data (DDRAM):
50 x 4 bit (Max 200 Segment)
 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
 Instrument Clusters
 Climate Controls
 Car Audios / Radios
 Metering
 White Goods
 Healthcare Products
 Battery Operated Applications
etc.
Key Specifications
■ Supply Voltage Range:
+2.5V to +6.0V
■ LCD Drive Power Supply Range: +2.5V to +6.0V
■ Operating Temperature Range: -40°C to +105°C
■ Max Segments:
200 Segments
■ Display Duty:
1/4
■ Bias:
1/2, 1/3 selectable
■ Interface:
2wire Serial Interface
Special Characteristics
■ ESD(HBM):
■ Latch-up current:
±2000V
±100mA
Package
W (Typ.) x D (Typ.) x H (Max.)
VQFP64
12.00mm x 12.00mm x 1.60mm
Typical Application Circuit
VLCD
VDD
C > 0.1uF
Controller
VDD
Insert Capacitors between
VDD / VSS and VLCD / VSS
VDD
VLCD
SDA
SCL
INHb
OSCIN
TEST1
VSS
COM0
COM1
COM2
COM3
SEG0
SEG1
SEG49
Segment
LCD
Internal Clock Mode
Figure 1. Typical Application Circuit
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
○This product is not designed for protection against radioactive rays.
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TSZ02201-0P4P0D301050-1-2
8. Feb. 2016 Rev.001