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參數(shù)資料
| 型號： | S6A0094 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | 80 SEG / 34 COM DRIVER & CONTROLLER FOR STN LCD |
| 中文描述： | 80賽格/ 34 COM驅(qū)動程序 |
| 文件頁數(shù)： | 45/62頁 |
| 文件大小： | 745K |
| 代理商： | S6A0094 |
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80 SEG / 34 COM DRIVER & CONTROLLER FOR STN LCD
S6A0094
41
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), and by setting electronic contrast control data bits, see
equation (2).
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
≥
2.2V
n
Voltage regulation by adjusting resistors Ra, Rb
When REF is "Low"
Rb
V0 = ( 1 + ) x V
REF
--- (1)
Ra
The internal V
REF
of voltage regulator has the temperature compensation function, and the temperature coefficient
is approximately 0%
Figure 16. Voltage Regulator Circuit
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