參數(shù)資料
型號: PCF2119X-2
廠商: NXP Semiconductors N.V.
英文描述: LCD controllers/drivers
中文描述: LCD控制器/驅(qū)動器
文件頁數(shù): 42/60頁
文件大?。?/td> 284K
代理商: PCF2119X-2
28. August 2000
42
Philips Semiconductors
Product specification
LCD controllers/drivers
PCF2119x-2
16.2
Charge pump characteristic
In Fig. 32 - 34 typical graphs of the total power consumption of the PCF2119-2 using the internal charge pump are
given. They are obtained under the following conditions :
ambient temperature 25C
V
DD1
= V
DD2
= V
DD3
= 2.2 (min), 2.7 (typ), 4V (max)
normal mode
Fosc = internal oscillator
MUX 1:18
typical load current I
VLCD
= 10 uA
For each multiplication factor there is a separate line. A line ends where it is not possible to get a higher voltage
under its conditions (a higher multiplication factor is needed to get higher voltages).
Connecting different displays may result in different current consumptions. This affects the efficiency and the
optimal multiplication factor to be used to generate a certain output voltage.
Fig.32 Typical charge pump characteristic for V
DD
= 2.2 V.
2 x
3 x
4 x
2.75
3.5
6.5
5.75
5
4.25
Vop [V]
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