BU97530KVT
低Duty LCD區段驅動器
BU97530KVT
低Duty LCD區段驅動器
BU97530KVT是1/5、1/4、1/3佔空比的Static通用LCD驅動器，最多可顯示445段的LCD，適用於消費電子和電池驅動裝置的LCD顯示。
最多可控制9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。內建有EVR功能，可進行LCD對比度的調節，還支援TTL電平輸入，因此能直接連接各種電源電壓的MCU。
Product Detail
規格:
Grade
Consumer
Segment Element
445
Duty
1/5, 1/4, 1/3, Static
Bias
1/3, 1/2
Elements of MUX 1:1
90
Elements of MUX 1:3
270
Elements of MUX 1:4
360
Elements of MUX 1:5
445
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]
16x16 (t=1.2)
功能:
- 1/5, 1/4, 1/3duty or Static setting selectable
1/5duty driving: Max 445 segments
1/4duty driving: Max 360 segments
1/3duty driving: Max 270 segments
Static driving: Max 90 segments - 1/3 or 1/2 bias setting selectable
- Support wide range of operation voltage from 2.7V to 6.0V,
which can support TNLCD and VA LCD display. - Integrated LCD voltage driving circuit
- Integrated oscillation circuit for LCD frame frequency
- Line or Frame inversion driving selectable
- Integrated 9ch 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 391Hz, total 16setting
- 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 EVR function to adjust LCD contrast
- Integrated voltage detected type power on reset circuit
- No external components required
- Low power consumption design
