|
BU91797MUF-M Datasheet, PDF (1/27 Pages) Rohm – Low Duty LCD Segment Driver for Automotive application | |||
|
Datasheet
Low Duty LCD Segment Driver
for Automotive application
BU91797MUF-M MAX 144 Segments (SEG36ÃCOM4)
General Description
BU91797MUF-M is a 1/4 duty general-purpose LCD
driver that can be used for automotive applications and
can drive up to 144 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
ï® AEC-Q100 Qualified (Note)
ï® Integrated RAM for Display Data (DDRAM):
36 x 4 bit (Max 144 Segment)
ï® LCD Drive Output:
4 Common Output, Max 36 Segment Output
ï® Integrated Buffer AMP for LCD Driving
ï® Integrated Oscillator Circuit
ï® No External Components
ï® Low Power Consumption Design
(Note) Grade 2
Key Specifications
â Supply Voltage Range:
+2.5V to +6.0V
â Operating Temperature Range: -40°C to +105°C
â Max Segments:
144Segments
â Display Duty:
1/4
â Bias:
1/2, 1/3 selectable
â Interface:
2wire Serial Interface
Special Characteristics
â ESD(HBM):
â Latch-up current:
±2000V
±100mA
Package
W (Typ.) x D (Typ.) x H (Max.)
Applications
ï® Instrument Clusters
ï® Climate Controls
ï® Car Audios / Radios
ï® Metering
ï® White Goods
ï® Healthcare Products
ï® Battery Operated Applications
etc.
VQFN48FV7070
7.0mm x 7.0mm 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
Sã»ã»ã»ã»ã»ã»ã»EG1
SEG35
Segment
LCD
ã»ã»ã»ã»ã»ã»ã»
Internal Clock Mode
Figure 1. Typical Application Circuit
âProduct structureï¼Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
âThis product has no designed protection against radioactive rays.
1/23
TSZ02201-0P4P0D301040-1-2
21.Dec.2015 Rev.001
|
▷ |