BU91796MUF-M Datasheet, PDF (1/27 Pages) Rohm – Low Duty LCD Segment Driver for Automotive application

Datasheet
Low Duty LCD Segment Driver
for Automotive application
BU91796MUF-M MAX 80 Segments (SEG20×COM4)
General Description
BU91796MUF-M is a 1/4 duty general-purpose LCD
driver that can be used for automotive applications and
can drive up to 80 LCD Segments.
It can support operating temperature of up to +105°C and
qualified for AEC-Q100 Grade2, as required for
automotive applications.
Wettable flank QFN package is suitable for small
footprint applications and provides significant
advantages in inspectability and solder joint reliability.
Features
 AEC-Q100 Qualified ^(Note)
 Integrated RAM for Display Data (DDRAM):
20 x 4 bit (Max 80 Segment)
 LCD Drive Output:
4 Common Output, Max 20 Segment Output
 Integrated Buffer AMP for LCD Driving
 Integrated Oscillator Circuit
 No External Components
 Low Power Consumption Design
(Note) Grade 2
Key Specifications
■ Supply Voltage Range:
+2.5V to +6.0V
■ Operating Temperature Range: -40°C to +105°C
■ Max Segments:
80Segments
■ 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.)
Applications
 Instrument Clusters
 Climate Controls
 Car Audios / Radios
 Metering
 White Goods
 Healthcare Products
 Battery Operated Applications
etc.
VQFN32FV5050
5.0mm x 5.0mm x 1.0mm
Typical Application Circuit
VDD
C > 0.1uF
Controller
Insert Capacitors
between VDD and VSS
VDD
VLCD
SDA
SCL
OSCIN
TEST 1
TEST ₂
VSS
COM0
COM1
COM2
COM3
SEG0
S_{・・・・・・・}EG1
SEG19
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 has no designed protection against radioactive rays.
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TSZ02201-0P4P0D301020-1-2
8.Feb.2016 Rev.001