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參數(shù)資料
| 型號： | EPL43102 |
| 英文描述： | Graphic STN LCD Drivers with Built-in RAM |
| 中文描述： | 圖形STN液晶顯示器驅(qū)動器，內(nèi)置內(nèi)存 |
| 文件頁數(shù)： | 22/64頁 |
| 文件大?。?/td> | 280K |
| 代理商： | EPL43102 |
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43 COM / 102 SEG LCD DRIVER
The information in this document is subject to change without notice.
24
Voltage converter circuits
These circuits boost up the electric potential between VDD and VSS to 2, 3, 4, or 5 times
toward positive side and boosted voltage is outputted from VOUT pin. The boosting
magnitude of internal booster circuit is selected by the capacitor connection (Refer
Figure 15). The internal oscillator is required to be operating when using this converter,
because the divided signal provided from the oscillator is used for the internal timing of
this circuit.
Figure 15
Voltage regulator circuits
The voltage regulator determines the LCD driving voltage V0, by adjusting resistors, Ra
and Rb, within the range of |V0| < |VOUT|. Because VOUT is the operating voltage of
operational-amplifier circuits, it is necessary to be applied internally or externally. For the
Eq. 1, we determine V0 by Ra, Rb and VEV. The Ra and Rb are connected internally or
externally by IRS pin. And VEV called the voltage of electronic volume is determined by
Eq. 2, where the parameter
α is the value selected by instruction, "Set Contrast Control
Mode", within the range 0 to 63.
VREF, a constant voltage source is 2 V at TA=25
oC.
C1+
C1-
C3
C4
C2-
C2+
VOUT
OPEN
C1+
C1-
C3
C4
C2-
C2+
VOUT
OPEN
C1+
C1-
C3
C4
C2-
C2+
VOUT
C1+
C1-
C3
C4
C2-
C2+
VOUT
2X
3X
4X
5X
Boost Capacitors = 1 uF~4.7 uF
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| EPL-60 | 功能描述:PAPER THERMAL PRINTER 60 MM RoHS:否 類別:計算機，辦公室 - 元件，配件 >> 配件 系列:- 標準包裝:1 系列:- 附件類型:替代墨盒 技術規(guī)格:- 適用于相關產(chǎn)品:- 其它名稱:CMS-INK-RO-C5 |
| EPL6024-102 | 制造商:Coilcraft Inc 功能描述:Power inductor, shielded, 20% tol, SMT, RoHS, halogen-free |
| EPL6024-102ME | 制造商:Coilcraft Inc 功能描述:Power inductor, shielded, 20% tol, SMT, RoHS, halogen-free |
| EPL6024-102MEB | 功能描述:固定電感器 Power Inductor 1 uH 20 % 12.5 A RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| EPL6024-102MEC | 功能描述:固定電感器 Power Inductor 1 uH 20 % 12.5 A RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
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