參數(shù)資料
型號: MAX1889EGE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 穩(wěn)壓器
英文描述: Triple-Output TFT LCD Power Supply with Fault Protection
中文描述: 2.8 A SWITCHING REGULATOR, 1250 kHz SWITCHING FREQ-MAX, QCC16
封裝: 5 X 5 MM, 0.90 MM HEIGHT, THIN, QFN-16
文件頁數(shù): 26/32頁
文件大?。?/td> 796K
代理商: MAX1889EGE
M
If the voltage difference is less than 400mV, then the
emitter of the PNP should be connected to a high sup-
ply voltage. The V
P
output has two charge-pump
stages added to V
MAIN
. The emitter of the PNP can be
connected to the output of the first stage as shown in
Figure 12. For higher efficiency, the first charge-pump
stage can be connected to V
IN
rather than V
MAIN,
as
this reduces the power loss.
Triple-Output TFT LCD Power Supply
with Fault Protection
26
______________________________________________________________________________________
POSITIVE
REGULATOR
STEP-UP
REGULATOR
NEGATIVE
REGULATOR
REF
FB
PGND
DRVP
FBP
LX
DRVN
FBN
REF
GND
MAX1889
V
N
V
P
V
MAIN
+9V
V
N
V
N
V
NL
-7V
V
PL
V
P
V
PL
+20V
R1
R2
C
V
IN
Figure 10. Controlling Power-Up Sequence with External Delay
Chip Information
TRANSISTOR COUNT: 2396
PROCESS: BiCMOS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1889EGE+ 制造商:Maxim Integrated Products 功能描述:TRIPLE-OUTPUT TFT LCD POWER SUPPLY WITH FAULT PROTECTION - Rail/Tube
MAX1889ETE 功能描述:LCD 驅(qū)動器 RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
MAX1889ETE+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Quad-Output TFT LCD Power Supply RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
MAX1889ETE+T 功能描述:LCD 驅(qū)動器 Quad-Output TFT LCD Power Supply RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube
MAX1889ETE-T 功能描述:LCD 驅(qū)動器 RoHS:否 制造商:Maxim Integrated 數(shù)位數(shù)量:4.5 片段數(shù)量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube