车载用低Duty LCD段码驱动器 BU97520AKV-M

BU97520AKV-M是1/4、1/3占空比车载用通用LCD驱动器,最多可显示276段LCD。本产品支持高液晶电压驱动及高帧频率驱动,也可驱动高显示精度的VA液晶。最多可控制6个通用/PWM输出,通过丰富的频率设定功能,无需频闪即可实现LED背光和LED按钮的照明。还内置最多30键的键盘扫描功能,可实现PCB上的配线削减和MCU的尺寸缩减和成本削减。支持TTL电平输入,可直接连接各种电源电压的MCU。

型号Status封装包装数量最小独立包装数量包装形态RoHS
BU97520AKV-ME2供应中VQFP8010001000TapingYes

BU97520AKV-M 数据手册 Data Sheet

技术特性
GradeAutomotive
Segment Element276
Duty1/4, 1/3
Bias1/3, 1/2
Elements of MUX 1:3207
Elements of MUX 1:4276
Interface [line serial]3wire+KEYOUT
Interface Voltage (Min.)[V]2.7
Interface Voltage (Max.)[V]6.0
Max GPO [port]6
Max KEYSCAN [Key]30
TTL input SupportYes
LCD Driving WaveformLine/Frame
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]85
应用领域
  • 汽车导航
技术资料下载
产品特点
  • 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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Application Note BA12004BF
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