參數(shù)資料
型號(hào): KS0718
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: CAP, TANT, 10UF, 10V, 3216, 20%, SM
中文描述: 81的COM / 104賽格驅(qū)動(dòng)
文件頁數(shù): 29/66頁
文件大?。?/td> 724K
代理商: KS0718
81 COM / 104 SEG DRIVER & CONTROLLER FOR STN LCD SPEC. VER. 1.4 KS0718
26
Voltage Regulator Circuits
The function of the internal Voltage Regulator circuits is to determine liquid crystal operating voltage, V0, by
adjusting resistors, Ra and Rb, within the range of |V0| < |VOUT|. Because VOUT is the operating voltage of
operational-amplifier circuits shown in figure 20, it is necessary to be applied internally or externally.
For the Eq. 1, we determine V0 by Ra, Rb and V
EV
. The Ra and Rb are connected internally or externally by
INTRS pin. And V
EV
called the voltage of electronic volume is determined by Eq. 2, where the parameter
α
is the
value selected by instruction, "Set Reference Voltage Register", within the range 0 to 63. V
REF
voltage at Ta=
25
°
C is shown in Table 13.
Rb
V0 = (1 +
) x V
EV
[V] ------ (Eq. 1)
Ra
(63 -
α
)
V
EV
= (1 -
) x V
REF
[V] ------ (Eq. 2)
200
Table 13. . V
REF
Voltage at Ta = 25
°
C
REF
Temp. coefficient
-0.05% /
°
C
External input
V
REF
[ V ]
1
2.0
0
VEXT
V
EV
GND
Ra
Rb
VSS
VR
V0
VOUT
+
-
Figure 20. Internal Voltage Regulator Circuit
相關(guān)PDF資料
PDF描述
KS0724 65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
KS0741 128 SEG / 129 COM DRIVER & CONTROLLER FOR 4 GRAY SCALE STN LCD
KS0759 81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD
KS0794 160 COM / 160 SEG DRIVER FOR STN LCD
KS10-12 Single output 5W ~ 15W AC-DC on-board type power supply
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KS0724 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:65 COM / 132 SEG DRIVER & CONTROLLER FOR STN LCD
KS0741 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:128 SEG / 129 COM DRIVER & CONTROLLER FOR 4 GRAY SCALE STN LCD
KS0759 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:81 COM / 128 SEG DRIVER & CONTROLLER FOR STN LCD
KS0794 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:160 COM / 160 SEG DRIVER FOR STN LCD
KS08 制造商:TME 功能描述:PROBE SURFACE HIGH TEMPERATURE 制造商:TME 功能描述:PROBE, SURFACE, HIGH TEMPERATURE