參數(shù)資料
型號(hào)： S6A0093
廠商： SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述： 80 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD
中文描述： 80賽格/ 26 COM驅(qū)動(dòng)程序
文件頁(yè)數(shù)： 38/54頁(yè)
文件大?。?/td> 594K
代理商： S6A0093
80 SEG / 26 COM DRIVER & CONTROLLER FOR STN LCD
S6A0093
35
VOLTAGE REGULATOR
The Voltage Regulator circuit is used to obtain an appropriate LCD panel driving voltage. This voltage is obtained by
adjusting resistors Ra and Rb as shown in equation (1) or (2), and by setting electronic contrast control data bits, see
equation (3) or (4).
The potential of V0 Pin can be adjusted within VOUT - V
REF
. V
REF
is the internal constant voltage source of the chip
and this value is 2.0V in the condition V
DD
≥
2.4V
The REF selects which voltage is used for voltage regulator between the external VEXT and the internal V
REF
.
n
Voltage regulation by adjusting resistors Ra, Rb
When REF is "Low" When REF is "High"
Rb Rb
V0 = ( 1 + ) x V
REF
--- (1) V0 = ( 1 + ) x VEXT --- (2)
Ra Ra
The internal V
REF
of voltage regulator has the temperature compensation function, and the temperature coefficient
is about 0.0%/
°
C.
_
+
Inside Chip
GND
Ra
Rb
VEXT
V
SS
VOUT
V0
REF
VR
V
REF
Figure 19. Voltage Regulator Circuit
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參數(shù)描述
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