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MAX249EQH-TD PDF预览

MAX249EQH-TD

更新时间: 2024-10-28 13:10:27
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美信 - MAXIM 驱动器
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38页 377K
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MAX249EQH-TD 数据手册

 浏览型号MAX249EQH-TD的Datasheet PDF文件第1页浏览型号MAX249EQH-TD的Datasheet PDF文件第2页浏览型号MAX249EQH-TD的Datasheet PDF文件第4页浏览型号MAX249EQH-TD的Datasheet PDF文件第5页浏览型号MAX249EQH-TD的Datasheet PDF文件第6页浏览型号MAX249EQH-TD的Datasheet PDF文件第7页 
+5V-Powered, Multichannel RS-232  
Drivers/Receivers  
0–MAX249  
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)  
(V  
CC  
= +5V ±±0ꢀ, C±–C4 = 0.±µꢁF MAX220, C± = 0.047µꢁ, C2–C4 = 0.33µꢁ, T = T  
to T  
F unless otherwise noted.) (Note 3)  
MAX  
A
MIN  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
All except MAX220/MAX243, V = +±V, no  
CC  
hysteresis in shutdown  
0.2  
0.±  
1.0  
RS-232 Input Hysteresis  
RS-232 Input Resistance  
V
MAX220  
0.3  
1
MAX243  
3
3
±
T
= +2±°C (MAX220)  
kꢁ  
A
±
I
I
I
= 3.2mA  
0.2  
0.4  
0.4  
OUT  
OUT  
OUT  
TTL/CMOS Output Voltage Low  
TTL/CMOS Output Voltage High  
TTL/CMOS Output Short-Circuit Current  
V
V
= 1.6mA (MAX220)  
= -1.0mA  
3.±  
-2  
V
CC  
- 0.2  
Sourcing V  
= V  
-10  
OUT  
GND  
mA  
Sinking V  
= V  
10  
30  
OUT  
CC  
V
= V or V = V (V  
= 0V for  
SHDN  
CC  
EN  
CC SHDN  
TTL/CMOS Output Leakage Current  
±0.0±  
±10  
0.ꢀ  
μA  
MAX222), 0V V  
V  
CC  
OUT  
EN Input Threshold Low  
EN Input Threshold High  
Supply Voltage Range  
MAX242  
1.4  
1.4  
V
V
V
MAX242  
2.0  
4.±  
±.±  
2
MAX220  
0.±  
4
No load  
MAX222/MAX232A/MAX233A/  
MAX242/MAX243  
10  
V
CC  
Supply Current (V  
= V ),  
SHDN CC  
mA  
μA  
Figures ±, 6, 11, 19  
MAX220  
12  
1±  
3kload  
both inputs  
MAX222/MAX232A/MAX233A/  
MAX242/MAX243  
T
A
T
A
T
A
T
A
= +2±°C  
0.1  
2
10  
±0  
= 0°C to +ꢁ0°C  
= -40°C to +ꢀ±°C  
= -±±°C to +12±°C  
MAX222/  
MAX242  
Shutdown Supply Current  
2
±0  
3±  
100  
±1  
0.ꢀ  
SHDN Input Leakage Current  
SHDN Threshold Low  
MAX222/MAX242  
MAX222/MAX242  
MAX222/MAX242  
μA  
V
1.4  
1.4  
SHDN Threshold High  
2.0  
6
V
C = ±0pF to 2±00pF,  
R = 3kto ꢁk,  
L
MAX222/MAX232A/  
12  
3
30  
L
MAX233/MAX242/MAX243  
V
CC  
= +±V, T =  
A
Transition Slew Rate  
V/μs  
+2±°C, measured  
from +3V to -3V or  
-3V to +3V  
MAX220  
1.±  
30.0  
MAX222/MAX232A/  
MAX233/MAX242/MAX243  
1.3  
4
3.±  
10  
t
t
, Figure 1  
, Figure 1  
PHLT  
PLHT  
MAX220  
Transmitter Propagation Delay TLL to  
RS-232 (Normal Operation)  
μs  
MAX222/MAX232A/  
MAX233/MAX242/MAX243  
1.±  
±
3.±  
10  
MAX220  
_______________________________________________________________________________________  
3

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