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Rohm Semiconductor Electronic Components Datasheet

BU91600FV-M Datasheet

Low Duty LCD Segment Driver

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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 structureSilicon monolithic integrated circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays.
1/63
TSZ02201-0P4P0D301300-1-2
16.Feb.2016 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BU91600FV-M Datasheet

Low Duty LCD Segment Driver

No Preview Available !

BU91600xxx Series MAX 148 Segments (37SEG x 4COM)
Datasheet
Typical Application Circuit
Key matrix
(P1/G1)
(P6/G6)
(P16/G16)
(General purpose/PWM ports)
(For use control of backlight)
+5V
(Note)
From
Controller
To Controller
From
Controller
KS1/S23
|
KS5/S27
VDD
KI1/S28
|
KI4/S31
COM1
COM2
COM3
COM4
S5/P1/G1
INHb
SCE
SCL
SDI
SDO
PWMIN/S36
OSCIN/S37
S10/P6/G6
S20/P16/G
S21
S22
S35
LCD Panel
(Up to 148
Segments)
(Note) Insert capacitors between VDD and VSS C > 0.1uF.
Figure 1. Typical Application Circuit
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
2/63
TSZ02201-0P4P0D301300-1-2
16.Feb.2016 Rev.001


Part Number BU91600FV-M
Description Low Duty LCD Segment Driver
Maker ROHM
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BU91600FV-M Datasheet PDF






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