BU91520KV-M
車用低Duty LCD區段驅動器
BU91520KV-M
車用低Duty LCD區段驅動器
BU91520KV-M是1/4、1/3佔空比車用通用LCD驅動器，最多可顯示276段LCD。本產品支援高液晶電壓驅動及高幀頻率驅動，也可驅動高顯示精度的VA液晶。還支援+105°℃動作，最多可控制6個通用／PWM輸出，通過豐富的頻率設定功能，無需頻閃即可實現LED背光和LED按鈕的照明。還內建最多30鍵的鍵盤掃描功能，可實現PCB上的配線削減和MCU的尺寸縮減和成本削減。支援TTL電平輸入，可直接連接各種電源電壓的MCU。
Product Detail
功能安全:
規格:
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
Power Supply for LCD (Min.) [V]
2.7
Power Supply for LCD (Max.) [V]
6
Max GPO [port]
6
Max KEYSCAN [Key]
30
TTL input Support
Yes
LCD Driving Waveform
Line/Frame
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
105
Package Size [mm]
14.0x14.0 (t=1.6)
Common Standard
AEC-Q100 (Automotive Grade)
功能:
- 1/4 or 1/3duty 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 LCD and 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)
- Integrated voltage detected type power on reset circuit
- No external components required
- Low power consumption design
- Support up to +105℃ operation, qualified AEC-Q100 Grade2
