Rohm Productdetail
Multifunction LCD Segment Driver_BU97941FV
ROHM的多机能SEG驱动器最适合于100SEG到200SEG的 液晶SEG驱动。内置显示用的RAM，可以减少微型电脑负荷， 消耗电流及周边零件，实现了极大的节能设计。 LED驱动器 通过PWM对应调光机能，充实了GPO等附加机能,实现了高水平的 面板设计。
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特性：
Grade
Consumer
Segment Element
104
Duty
1/4, 1/3, Static
Bias
1/3
Elements of MUX 1:1
26
Elements of MUX 1:3
78
Elements of MUX 1:4
104
Interface [line serial]
3wire
Interface Voltage (Min.)[V]
1.8
Interface Voltage (Max.)[V]
3.6
Power Supply for LCD (Min.)[V]
2.7
Power Supply for LCD (Max.)[V]
5.5
LED Driver [port]
4
LCD Driving Waveform
Line/Frame
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
特点：
- 1/4, 1/3duty or Static setting selectable
1/4duty driving: Max 104 segments
1/3duty driving: Max 78 segments
Static driving: Max 26 segments - 1/3 bias setting
- Power supply for Interface: 1.8V to 3.6V
- Power supply for LCD: 2.7V to 5.5V
- Integrated LCD voltage driving circuit
- Integrated oscillation circuit for LCD frame frequency
- Line or Frame inversion driving selectable
- Integrated 4ch LED driver
- Support 3 wire serial interface
- Integrated voltage detected type power on reset circuit
- No external components required
- Low power consumption design