參數(shù)資料
型號(hào)： MAX1889EGE
廠(chǎng)商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 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(yè)數(shù)： 5/32頁(yè)
文件大小： 796K
代理商： MAX1889EGE
M
Triple-Output TFT LCD Power Supply
with Fault Protection
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 3V,
SHDN
= IN, C
REF
= 0.22μF, PGND = GND,
T
A
= -40
°
C to +85
°
C
.) (Note 4)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC SIGNAL (FREQ)
Input Low Voltage
Input High Voltage
Input Current
OVERCURRENT COMPARATOR
Input Offset Voltage
0.15 x V
IN
typical hysteresis
0.3 x V
IN
V
V
μA
0.7 x V
IN
I
FREQ
1
-5
+5
mV
Input Bias Current
I
OCN
,
I
OCP
V
OCN
= V
OCP
= V
IN
-50
+50
nA
OCN, OCP Input
Common-Mode Range
FAULT TIMER AND GATE DRIVER
GATE Output Sink Current
GATE Output
Pulldown Resistance
1.5
0.8 x
V
IN
V
I
GATE
V
GATE
= 1.5V, during turn-on transition
6
18
μA
V
GATE
< 0.5V
200
GATE Output Pullup Resistance
200
Note 1:
Quiescent current does not include switching losses.
Note 2:
FB regulation voltage is tested with no slope compensation ramp. Slope compensation needs to be included when selecting
resisitors for setting the output voltage (see
Main Step-Up Regulator
and
Output Voltage Selection
sections).
Note 3:
Guaranteed by design. Not production tested.
Note 4:
Specifications to -40
°
C are guaranteed by design, not production tested.
Typical Operating Characteristics
(Circuit of Figure 1, V
IN
= +3.3V, V
MAIN
= +9V, V
PL
= +20V, V
NL
= -7V,
SHDN
= FREQ = IN, PGND = GND, T
A
= +25
°
C, unless
otherwise noted.)
50
1
1000
100
10
STEP-UP REGULATOR EFFICENCY
vs. LOAD CURRENT (V
MAIN
= 9V)
100
70
60
90
80
M
LOAD CURRENT (mA)
E
A
B
C
A: V
IN
= 2.7V
B: V
IN
= 3.3V
C: V
IN
= 5.5V
1
10
LOAD CURRENT (mA)
100
1000
STEP-UP REGULATOR OUTPUT VOLTAGE
vs. LOAD CURRENT (V
MAIN
= 9V)
M
O
9.1
8.5
8.6
8.7
8.8
8.9
9.0
V
IN
= 2.7V
V
IN
= 3.3V
V
IN
= 5.5V
100
50
1
10
LOAD CURRENT (mA)
100
1000
STEP-UP REGULATOR EFFICIENCY
vs. LOAD CURRENT (V
MAIN
= 13V)
60
M
E
70
80
90
A: V
IN
= 2.7V
B: V
IN
= 3.3V
C: V
IN
= 5.5V
A
B
C
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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(dòng)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(shí)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(kāi)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(kāi)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(fēng)格:SMD/SMT
MAX1889ETE+T 功能描述:LCD 驅(qū)動(dòng)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(shí)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(dòng)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(shí)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
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