參數(shù)資料
型號(hào)： MAX747
廠商： Maxim Integrated Products, Inc.
英文描述： Parallel-Load 8-Bit Shift Registers 16-CFP -55 to 125
中文描述： 高效率、PWM、降壓型控制器(外部P溝道驅(qū)動(dòng)器)
文件頁(yè)數(shù)： 2/12頁(yè)
文件大?。?/td> 136K
代理商： MAX747
M
High-Effic ienc y PWM, S tep-Down
P-Channel DC-DC Controller
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Supply Voltage V+, AV+ to GND..............................-0.3V to 17V
AGND to GND..........................................................-0.3V to 0.3V
All Other Pins................................................-0.3V to (V+ + 0.3V)
Reference Current (I
) ....................................................±2mA
Continuous Power Dissipation (T
= +70°C)
Plastic DIP (derate 10.00mW/°C above +70°C) ..........800mW
SO (derate 8.33mW/°C above +70°C).........................667mW
CERDIP (derate 9.09mW/°C above +70°C).................727mW
Operating Temperature Ranges:
MAX747C_D .......................................................0°C to +70°C
MAX747E_D.....................................................-40°C to +85°C
MAX747MJ D..................................................-55°C to +125°C
J unction Temperature
MAX747C_D/E_D.........................................................+150°C
MAX747MJ D ...............................................................+175°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
ELECTRICAL CHARACTERISTICS
(V+ = 10V, I
LOAD
= 0mA, I
REF
= 0mA, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SYMBOL
Input Voltage Range
V+
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
CONDITIONS
MIN
4
TYP
MAX
15
UNITS
V
For regulated outputs
V+ = 6V to 15V, 0V < V+ - CS < 0.125V, FB = 0V
(includes line and load regulation)
V+ - CS = 0V, external
feedback mode
Output Voltage
V
OUT
4.85
5.08
5.25
V
Feedback Voltage
1.96
1.95
2.00
2.00
2.04
2.05
V
V+ = 6V to 15V, FB = 0V
V+ = 4V to 15V, external feedback mode
0V < V+ - CS < 0.125V
Circuit of Figure 1, I
LOAD
= 0.5A to 2.5A
V
OUT
= 5V
For dual-mode switchover
FB = 2V
0.05
Line Regulation
0.1
2.5
%V
Load Regulation
Efficiency
OUT Leakage Current
FB Input Logic Low
FB Input Leakage Current
1.3
91
50
%
%
μA
mV
nA
80
40
100
2.03
2.04
0.1
2.00
2.00
Reference Voltage
I
REF
= 0μA
1.97
1.96
V
Reference Load Regulation
Soft-Start Source Current
Soft-Start Fault Current
I
REF
= 0μA to 100μA
SS = 0V
SS = 2V
Operating, V+ = 15V
Operating, V+ = 10V
Shutdown mode
MAX747C
MAX747E/M
9
1
20
mV
μA
μA
100
500
0.95
0.8
0.6
100
100
1.3
mA
Supply Current
20
115
120
μA
Oscillator Frequency
f
OSC
85
80
kHz
Maximum Duty Cycle
CS Amp I
LIM
Threshold
EXT Output High
EXT Output Low
EXT Sink Current
EXT Source Current
CC Impedance
V+ = 6V
V+ - CS
I
EXT
= -1mA (sourcing)
I
EXT
= 1mA (sinking)
V
EXT
= 7.5V
V
EXT
= 2.5V
91
125
V+ – 0.1
96
150
%
mV
V
V
mA
mA
k
V
LIMIT
175
0.25
110
170
24
2.00
2.00
LBI Threshold Voltage
V
TH
LBI falling
1.97
1.96
2.03
2.04
V
LBI Input Leakage Current
LBO Output Leakage Current
LBI = 2.5V
V+ = 15V, LBO = 15V, LBI = 2.5V
100
1
nA
μA
SHDN Input Voltage Low
SHDN Input Voltage High
SHDN Input Leakage Current
V
IL
V
IH
0.4
V
V
2.0
SHDN = 10V
0.1
100
nA
V
REF
LBO Output Voltage Low
I
SINK
= 0.5mA
0.4
V
MAX747C
MAX747EM
MAX747C
MAX747E/M
MAX747C
MAX747E/M
相關(guān)PDF資料
PDF描述
MAX747CPD Parallel-Load 8-Bit Shift Registers 16-CFP -55 to 125
MAX747CSD Parallel-Load 8-Bit Shift Registers 20-LCCC -55 to 125
MAX747EPD Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
MAX747ESD Parallel-Load 8-Bit Shift Registers 16-CFP -55 to 125
MAX747MJD Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
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MAX7474EAE+T 功能描述:視頻 IC Adaptive Equalizer f/Vid Over Twist Pr RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
MAX7474EVKIT+ 功能描述:視頻 IC 開發(fā)工具 MAX7474 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評(píng)估:LMH1251 工作電源電壓:5 V
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