工業機器用低Duty LCD節段驅動器 - BU97931FV-LB
本產品適用於工具機市場、可保證長期供應之Rank 產品。 最適合使用在這些應用裝置上的產品。
ROHM的多機能節段驅動器最適合約從100節段到200節段為止的液晶節段驅動。除機種內建表示用RAM、可減輕微控制器負擔外、亦可大幅減少功耗電流及周邊元件數量。此外LED驅動器、依PWM可對應調光功能、GPO等的附加功能也完備、可做到在單一Rank 上的面板設計。
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規格:
Grade
Industrial
Segment Element
112
Duty
1/4, 1/3, Static
Bias
1/3
Elements of MUX 1:1
28
Elements of MUX 1:3
84
Elements of MUX 1:4
112
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
Max GPO [port]
5
LED Driver [port]
1
LCD Driving Waveform
Line/Frame
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
功能:
- Long time support product for Industrial applications
- 1/4, 1/3duty or Static setting selectable
1/4duty driving: Max 112 segments
1/3duty driving: Max 84 segments
Static driving: Max 28 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 5ch general purpose outputs (SEG selectable)
- Integrated 1ch LED driver able to support 256 step PWM illumination
- Support individual blink function with dedicated blink RAM integrated
- Support 3 wire serial interface
- Integrated voltage detected type power on reset circuit
- No external components required
- Low power consumption design