Low Duty LCD Segment Drivers for Automotive applications - BU97520AKV-M | ROHM Semiconductor - ROHM Co., Ltd. - global

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Low Duty LCD Segment Drivers for Automotive applications - BU97520AKV-M

BU97520AKV-M is a 1/4 or 1/3 duty general-purpose LCD driver that can be used for automotive applications and can drive up to 276 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 control up to 6 general-purpose outputs / 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 30 key inputs to reduce PCB wiring and to minimize microcontroller size and cost.TTL compatible input interface is also available, these are well-suited for wide-voltage range of MCUs.

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Buy Sample FAQ Contact Us Data Sheet

Part Number | BU97520AKV-ME2

Status | Active

Package | VQFP80

Unit Quantity | 1000

Minimum Package Quantity | 1000

Packing Type | Taping

RoHS | Yes

Specifications:

Grade

Automotive

Segment Element

276

Duty

1/4, 1/3

Bias

1/3, 1/2

Elements of MUX 1:3

207

Elements of MUX 1:4

276

Interface [line serial]

3wire+KEYOUT

Interface Voltage (Min.)[V]

2.7

Interface Voltage (Max.)[V]

6.0

Max GPO [port]

Max KEYSCAN [Key]

TTL input Support

Yes

LCD Driving Waveform

Line/Frame

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

Features:

1/4 or 1/3 duty setting selectable
1/4duty driving: Max 276 segments
1/3duty driving: Max 207 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 LCDand VA LCD display.
Integrated LCD voltage driving circuit
Integrated oscillation circuit for LCD frame frequency
Line or Frame inversion driving selectable
Integrated 6ch general purpose outputs/ PWM outputs (SEG selectable)
Support 256 step PWM function to realize backlight/ button LED illumination
Support LCD frame frequency from 49Hz to 195Hz, total 8setting
Support PWM frequency from 146Hz to 2.34KHz,
total 16setting
Support 3 wire serial interface + KEYOUT
Support TTL level input to connect 3.3V MCU directly
Support Max 30 key input detection (SEG selectable)
Support INHb terminal to control Display ON/OFF
Integrated voltage detected type power on reset circuit
No external components required
Low power consumption design
Qualified AEC-Q100 Grade3

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