BU97931FV-LB
工业设备用低Duty LCD段码驱动器
BU97931FV-LB
工业设备用低Duty LCD段码驱动器
本产品是面向工业设备市场的产品，保证可长期稳定供货。 是适合这些用途的产品。
BU97931FVーLB是1/4、1/3占空比的Static通用LCD驱动器，最多可显示112段的LCD，适用于工业设备市场应用的LCD显示。内置显示用RAM，可减轻微控制器负荷，还无需外置部件，实现了低功耗。最多控制5个通用输出，可实现LED元件等的点亮，此外还内置1ch具有PWM功能的LED驱动器，还能实现背光、按钮LED等的照明。
主要规格
特性：
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
Package Size [mm]
13.6x7.8 (t=2)
特点：
- 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
