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參數(shù)資料
| 型號(hào)： | LH1554P |
| 英文描述： | LCD Display Driver |
| 中文描述： | 液晶顯示驅(qū)動(dòng)程序 |
| 文件頁(yè)數(shù)： | 22/51頁(yè) |
| 文件大?。?/td> | 288K |
| 代理商： | LH1554P |
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LH155BA
22
2.18. Booster Circuit
Setting BS register, booster circuit multiple can be
selected. Placing capacitor C
1
across CAP+ and
CAP–, across V
EE2
and V
SS
, across V
EE3
and V
SS
and across V
OUT
and V
SS
boosts four times.
Placing capacitor C
1
across CAP+ and CAP–,
across V
EE2
and V
SS
, across V
OUT
and V
SS
, and
setting V
EE3
to NC when boosting three times.
Placing C
1
across CAP+ and CAP–, across V
OUT
and V
SS
, and setting V
EE2
and V
EE3
to NC when
boosting two times.
The boosted voltage is output to V
OUT
pin.
Since the booster circuit uses the clock derived
from the internal oscillation circuit or external clock
as the boosting clock, the internal oscillation circuit
must be enabled, or if external clock is selected, it
must be fed to CK pin.
The output level at the V
OUT
pin does not exceed
the recommended maximum operating voltage
(14.0 V) when the voltage is boosted. If this value
is exceeded, the operation of the LH155BA is not
covered by warranty.
When boosting four times and three times,
placement of capacitor is as shown below.
V
EE
= 1.8 V
V
SS
= 0 V
V
OUT
= 5.4 V
When Boosted Three Times
V
EE
= 1.8 V
V
SS
= 0 V
V
OUT
= 7.2 V
When Boosted Four Times
CAP+
CAP–
V
EE2
V
EE3
V
OUT
When Boosted Four Times
CAP+
CAP–
V
EE2
V
EE3
V
OUT
When Boosted Three Times
If charge up of LCD drive voltage is not successful,
check
capacity,
voltage
temperature characteristics of external capacitor,
and select appropriate device. When charge up is
dependency
and
unsuccessful, it is advisable to charge up LCD drive
voltage step by step (x 2, x 3, x 4) by inputting
software from external microcontroller.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LH15550 | 制造商:TE Connectivity 功能描述: |
| LH1556AAC | 功能描述:固態(tài)繼電器-PCB安裝 Dual Normally Open Form 1A 350V RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點(diǎn)形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
| LH1556AAC_11 | 制造商:VISHAY 制造商全稱(chēng):Vishay Siliconix 功能描述:Dual 1 Form A Solid-State Relay |
| LH1556AACTR | 功能描述:固態(tài)繼電器-PCB安裝 Dual Normally Open Form 1A 350V RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點(diǎn)形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
| LH1556AB | 功能描述:固態(tài)繼電器-PCB安裝 Dual Normally Open Form 1A 350V RoHS:否 制造商:Omron Electronics 控制電壓范圍: 負(fù)載電壓額定值:40 V 負(fù)載電流額定值:120 mA 觸點(diǎn)形式:1 Form A (SPST-NO) 輸出設(shè)備:MOSFET 封裝 / 箱體:USOP-4 安裝風(fēng)格:SMD/SMT |
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