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SG3843DMT

更新时间： 2024-01-26 01:57:16
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美高森美 - MICROSEMI 控制器
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SG3843DMT 数据手册

 浏览型号SG3843DMT的Datasheet PDF文件第2页浏览型号SG3843DMT的Datasheet PDF文件第3页浏览型号SG3843DMT的Datasheet PDF文件第4页浏览型号SG3843DMT的Datasheet PDF文件第5页浏览型号SG3843DMT的Datasheet PDF文件第6页浏览型号SG3843DMT的Datasheet PDF文件第7页 
SG1842/SG1843 Series  
®
C U R R E N T M O D E P W M C O N T R O L L E R  
TM  
P R O D U C T I O N D A T A S H E E T  
KEY FEATURES  
DESCRIPTION  
The SG1842/43 family of control IC's provides all lockout, current limiting circuitry and start-up  
the necessary features to implement off-line fixed current of less than 1mA. The totem-pole output  
frequency, current-mode switching power supplies is optimized to drive the gate of a power  
with a minimum number of external components. MOSFET. The output is low in the off state to  
Current-mode architecture demonstrates improved provide direct interface to an N channel device.  
line regulation, improved load regulation, pulse- The SG1842/43 is specified for operation over  
by-pulse current limiting and inherent protection the full military ambient temperature range of -  
of the power supply output switch. The bandgap 55°C to 125°C. The SG2842/43 is specified for  
reference is trimmed to ±1% over temperature. the industrial range of -25°C to 85°C, and the  
Oscillator discharge current is trimmed to less SG3842/43 is designed for the commercial range  
than ±10%. The SG1842/43 has under-voltage of 0°C to 70°C.  
„
OPTIMIZED FOR OFF-LINE  
CONTROL  
LOW START-UP CURRENT (<1mA)  
„
„
AUTOMATIC FEED FORWARD  
COMPENSATION  
TRIMMED OSCILLATOR  
DISCHARGE CURRENT  
PULSE-BY-PULSE CURRENT  
LIMITING  
ENHANCED LOAD RESPONSE  
CHARACTERISTICS  
„
„
„
„
UNDER-VOLTAGE LOCKOUT  
WITH 6V HYSTERESIS (SG1842  
only)  
„
„
DOUBLE-PULSE SUPPRESSION  
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com  
HIGH-CURRENT TOTEM-POLE  
OUTPUT (1AMP PEAK)  
„
INTERNALLY TRIMMED BANDGAP  
REFERENCE  
PRODUCT HIGHLIGHT  
„
„
500KHZ OPERATION  
UNDERVOLTAGE LOCKOUT  
SG1842 - 16 volts  
R
ST  
SG1843 - 8.4 volts  
„
LOW SHOOT-THROUGH  
CURRENT <75mA OVER  
TEMPERATURE  
I
AC  
INPUT  
ST  
VCC  
H I G H R E L I A B I L I T Y  
F E A T U R E S  
SG3842  
„
„
AVAILABLE TO MIL-STD-883B AND  
DSCC  
SCHEDULED FOR MIL-M38510  
QPL LISTING  
„
„
RADIATION DATA AVAILABLE  
Microsemi LEVEL "S" PROCESSING  
AVAILABLE  
PACKAGE ORDER INFO  
Plastic DIP  
8-Pin  
Plastic DIP  
14-Pin  
Plastic SOIC  
8-Pin  
Plastic SOIC  
14-Pin  
Ceramic Dip  
8-Pin  
Ceramic DIP  
14-Pin  
Cer Flatpack  
10-Pin  
Ceramic LCC  
20-Pin  
M
N
DM  
D
Y
J
F
L
TA (°C)  
RoHS / Pb-free Transition DC: 0503  
RoHS / Pb-free Transition DC:0440  
SG3842M  
SG3843M  
SG2842M  
SG2843M  
SG3842N  
SG3843N  
SG2842N  
SG2843N  
SG3842DM  
SG3842D  
SG3843D  
SG2842D  
SG2843D  
SG3842Y  
SG3843Y  
SG2842Y  
SG2843Y  
SG1842Y  
SG1843Y  
SG3842J  
SG3842J  
SG2842J  
SG2843J  
SG1842J  
0 to 70  
SG3843DM  
SG2842DM  
SG2843DM  
-25 to 85  
-55 to  
125  
SG1842F  
SG1843F  
SG1842L  
SG1842L  
SG1843J  
MIL-  
STD/883  
SG1842Y/883B  
SG1843Y/883B  
SG1842J/883B  
SG1843J/883B  
SG1842F/883B SG1842L/883B  
SG1843F/883B SG1843L/883B  
SG1842Y/DESC SG1842J/DESC SG1842F/DESC SG1842L/DESC  
SG1843Y/DESC SG1843J/DESC SG1843F/DESC SG1843L/DESC  
DESC  
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. SG2843DM-TR)  
Plastic packages are RoHS compliant  
Copyright © 2000  
Rev. 1.6b 2010-03-15  
Microsemi  
1
Analog Mixed Signal Group  
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  
1234567...14

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