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參數(shù)資料
| 型號(hào)： | MAX8740 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | TFT-LCD Step-Up DC-DC Converter |
| 中文描述： | TFT-LCD升壓型DC-DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 341K |
| 代理商： | MAX8740 |
M
TFT-LCD Step-Up DC-DC Converter
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
SHDN
= 3V,
T
A
= 0°C to +85°C
. Typical values are at T
A
= +25°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
CONTROL INPUTS
SHDN
, FREQ Input Low Voltage
V
IN
= 2.6V to 5.5V
0.3 x
V
IN
V
SHDN
, FREQ Input High Voltage
V
IN
= 2.6V to 5.5V
0.7 x
V
IN
V
SHDN
, FREQ Input Hysteresis
V
IN
= 2.6V to 5.5V
0.1 x
V
IN
6.0
0.001
V
FREQ Pulldown Current
SHDN
Input Current
2.3
9.5
1
μA
μA
SHDN
= GND
ELECTRICAL CHARACTERISTICS
(V
IN
= V
SHDN
= 3V,
T
A
= -40°C to +85°C
, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
2.6
4.0
TYP
MAX
5.5
5.5
28
0.44
5
10
UNITS
V
OUT
< 18V
18V < V
OUT
< 28V
Input Voltage Range
V
Output Voltage Range
V
V
FB
= 1.3V, not switching
V
FB
= 1.0V, switching, FREQ = GND
SHDN
= GND
IN Quiescent Current
mA
IN Shutdown Current
ERROR AMPLIFIER
FB Regulation Voltage
FB Line Regulation
Transconductance
OSCILLATOR
μA
Level to produce V
COMP
= 1.24V
Level to produce V
COMP
= 1.24V, V
IN
= 2.6V to 5.5V
1.215
1.260
0.15
330
V
%/V
μS
100
FREQ = GND
FREQ = IN
490
900
770
1600
Frequency
kHz
n-CHANNEL MOSFET
Current Limit
Current-Sense Transresistance
CONTROL INPUTS
V
FB
= 1V, 71% duty cycle
3.9
0.09
5.3
0.25
A
V/A
SHDN
, FREQ Input Low Voltage
V
IN
= 2.6V to 5.5V
0.3 x
V
IN
V
SHDN
, FREQ Input High Voltage
V
IN
= 2.6V to 5.5V
0.7 x
V
IN
V
Note 1:
-40°C specifications are guaranteed by design, not production tested.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX8740ETB | 制造商:Maxim Integrated Products 功能描述:LOW COST LCD MONITOR PANEL POWER SU - Rail/Tube |
| MAX8740ETB+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX8740ETB+T | 功能描述:LCD 驅(qū)動(dòng)器 TFT-LCD Step-Up DC/DC Converter 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 |
| MAX8740ETB-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 |
| MAX8740EUB+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
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