BU97540KV-M
车载用低Duty LCD段码驱动器
BU97540KV-M
车载用低Duty LCD段码驱动器
BU97540KV-M是1/5、1/4、1/3占空比、Static车载用通用LCD驱动器，最多可显示335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9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。内置有EVR功能，可进行LCD对比度的调节，还支持TTL电平输入，因此能直接连接各种电源电压的MCU。利用主/从功能，可由2个芯片构成进行使用，最多可显示680段LCD。
主要规格
功能安全:
特性：
Grade
Automotive
Segment Element
335
Duty
1/5, 1/4, 1/3, Static
Bias
1/3, 1/2
Elements of MUX 1:1
68
Elements of MUX 1:3
204
Elements of MUX 1:4
272
Elements of MUX 1:5
335
Interface [line serial]
3wire+KEYOUT
Interface Voltage (Min.)[V]
2.7
Interface Voltage (Max.)[V]
6
Power Supply for LCD (Min.) [V]
2.7
Power Supply for LCD (Max.) [V]
6
Max GPO [port]
9
Max KEYSCAN [Key]
30
TTL input Support
Yes
LCD Driving Waveform
Line/Frame
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Package Size [mm]
14x14 (t=1.6)
Common Standard
AEC-Q100 (Automotive Grade)
特点：
- AEC-Q100 Qualified
- Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)
- Supports 1 chip (Master) mode and 2 chip(Master + Slave) mode
- Either 1/5, 1/4, 1/3 or 1/1 duty (static) can be selected with the serial control data.
- 1 chip mode (only Master) :
1/5 duty drive : Up to 335 segments can be driven
1/4 duty drive : Up to 272 segments can be driven
1/3 duty drive : Up to 204 segments can be driven
1/1 duty drive : Up to 68 segments can be driven - 2 chip mode (Master + Slave) :
1/5 duty drive: Up to 680 segments can be driven
1/4 duty drive: Up to 548 segments can be driven
1/3 duty drive : Up to 411 segments can be driven
1/1 duty drive : Up to 137 segments can be driven - Serial data control of frame frequency for common and segment output waveforms.
- Serial data control of switching between the segmentoutput port, PWM output port and general-purpose output port functions. (Max 9 ports)
- Built-in OSC circuit
- Integrated Power-on Reset circuit
- No external component
- Low power consumption design
- Supports Line and Frame Inversion
