BU91600FV-M Datasheet, PDF (1/67 Pages) Rohm – Low Duty LCD Segment Driver

Datasheet
Low Duty LCD Segment Driver
for Automotive application
BU91600xxx Series MAX 148 Segments (37SEG x 4COM)
General Description
The BU91600FV-M and BU91600FUV-M are a 1/4, 1/3,
1/2duty or Static general-purpose LCD driver that can be
used for automotive applications and can drive up to 116
LCD Segments.
This product can support VA LCD displays, which has
better optical performance with higher LCD voltage
driving and higher frame frequency driving.
It can support operating temperature of up to +105C and
is qualified for AEC-Q100 Grade2, as required for
automotive applications.
It can control up to 16 general-purpose outputs / 6 PWM
output ports for LED backlighting and LED button
illumination realizing less flicker by various frequency
setting function.
It can also support a key scan function that detects a
maximum of 20 key inputs to reduce PCB wiring and to
minimize microcontroller size and cost.
It can support LCD contrast adjustment by its EVR
function and
TTL compatible input interface is also available, these
are well-suited for wide-voltage range of MCUs.
Features
 1/4, 1/3, 1/2duty or Static setting selectable
1/4duty: Max 116 segments,
1/3duty: Max 87 segments
1/2duty: Max 58 segments,
Static: Max 29 segments
 1/3 or 1/2 bias setting selectable
 Support wide range of operation voltage from 2.7V to
6.0V, which can support TN LCD and VA LCD display.
 Integrated LCD voltage driving circuit
 Integrated oscillation circuit for LCD frame frequency
 Line or Frame inversion driving selectable
 Integrated 16ch general purpose outputs (SEG
selectable)
 Integrated 6ch PWM outputs (SEG selectable)
 Support 256 step PWM function to realize backlight/
button LED illumination
 Support LCD frame frequency from 50Hz to 685Hz,
total 128setting
 Support PWM frequency from 146Hz to 2.34KHz, total
16setting
 Support external PWM input
 Support 3 wire serial interface + KEYOUT
 Support TTL level input to connect 3.3V MCU directly
 Support Max 20 key input detection (SEG selectable)
 Integrated EVR function to adjust LCD contrast
 Integrated voltage detected type power on reset
circuit
 No external components required
 Low power consumption design
 Support up to +105C operation
 AEC-Q100 Qualified ^(Note)
(Note) Grade 2
Key Specifications
■ Supply Voltage Range:
+2.7V to +6.0V
■ Operating Temperature Range: -40°C to +105°C
■ Max Segments:
BU91600FV-M
116 Segments
BU91600FUV-M
148 Segments
■ Display Duty
1/1, 1/2, 1/3, 1/4 Selectable
■ Bias:
1/2, 1/3 Selectable
■ Interface:
3wire Serial Interface
Special Characteristics
■ Electrostatic Discharge Voltage(HBM):
■ Latch-up Current:
±2000V
±100mA
Applications
■ Instrument Clusters
■ Climate Controls
■ Car Audios
■ Car Radios
■ Metering
■ White Goods
■ Healthcare Products
■ Battery operated products
etc.
Package
W (Typ.) x D (Typ.) x H (Max.)
SSOP-B40
13.60mm x 7.80mm x 1.80mm
TSSOP-C48V
12.50mm x 8.10mm x 1.00mm
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays.
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TSZ02201-0P4P0D301300-1-2
16.Feb.2016 Rev.001