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SG3843M

更新时间： 2024-09-22 22:43:15
品牌 Logo 应用领域
美高森美 - MICROSEMI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
14页 224K
描述
CURRENT MODE PWM CONTROLLER

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中文翻译

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SG3843M 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：DIP
包装说明：ROHS COMPLIANT, PLASTIC, DIP-8针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：25 V最小输入电压：8.2 V
标称输入电压：15 VJESD-30 代码：R-PDIP-T8
JESD-609代码：e3湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：70 °C最低工作温度：
最大输出电流：1 A封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：5.308 mm子类别：Switching Regulator or Controllers
表面贴装：NO切换器配置：SINGLE
最大切换频率：500 kHz技术：BIPOLAR
温度等级：COMMERCIAL端子面层：Matte Tin (Sn)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：7.62 mmBase Number Matches：1

SG3843M 数据手册

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LIN DOC #: 1842  
SG1842/SG1843 Series  
U R R E N T M O D E P W M C O N T R O L L E R  
C
T H E I N F I N I T E P O W E R O F I N N O V A T I O N  
P R O D U C T I O N D A T A S H E E T  
DESCRIPTION  
KEY FEATURES  
■ OPTIMIZED FOR OFF-LINE CONTROL  
■ LOW START-UP CURRENT (<1mA)  
■ AUTOMATIC FEED FORWARD  
COMPENSATION  
■ TRIMMED OSCILLATOR DISCHARGE  
The SG1842/43 family of control IC's  
provides all the necessary features to  
implement off-line fixed frequency,  
current-mode switching power supplies  
with a minimum number of external  
components. Current-mode  
architecture demonstrates improved  
line regulation, improved load  
regulation, pulse-by-pulse current  
limiting and inherent protection of the  
power supply output switch.  
voltage lockout, current limiting  
circuitry and start-up current of less  
than 1mA.  
The totem-pole output is optimized  
to drive the gate of a power MOSFET.  
The output is low in the off state to  
provide direct interface to an N  
channel device.  
The SG1842/43 is specified for  
operation over the full military ambient  
temperature range of -55°C to 125°C.  
The SG2842/43 is specified for the  
industrial range of -25°C to 85°C, and  
the SG3842/43 is designed for the  
commercial range of ꢁ°C to 7ꢁ°C.  
CURRENT  
■ PULSE-BY-PULSE CURRENT LIMITING  
■ ENHANCED LOAD RESPONSE  
CHARACTERISTICS  
■ UNDER-VOLTAGE LOCKOUT WITH 6V  
HYSTERESIS (SG1842 only)  
■ DOUBLE-PULSE SUPPRESSION  
■ HIGH-CURRENT TOTEM-POLE OUTPUT  
The bandgap reference is trimmed to  
1ꢀ over temperature. Oscillator  
discharge current is trimmed to less  
than 1ꢁꢀ. The SG1842/43 has under-  
(1AMP PEAK)  
■ INTERNALLY TRIMMED BANDGAP  
REFERENCE  
■ 500KHZ OPERATION  
■ UNDERVOLTAGE LOCKOUT  
SG1842 - 16 volts  
PRODUCT HIGHLIGHT  
SG1843 - 8.4 volts  
■ LOW SHOOT-THROUGH CURRENT <75mA  
TYPICAL APPLICATION OF SG3842 IN A FLYBACK CONVERTER  
OVER TEMPERATURE  
R
ST  
HIGH RELIABILITY FEATURES  
■ AVAILABLE TO MIL-STD-883B AND DESC  
I
AC  
INPUT  
ST  
SMD  
■ SCHEDULED FOR MIL-M38510 QPL LISTING  
■ RADIATION DATA AVAILABLE  
VCC  
■
LINFINITY LEVEL "S" PROCESSING AVAILABLE  
SG3842  
PACKAGE ORDER INFORMATION  
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 Ceramic LCC  
L
1ꢁ-pin 2ꢁ-pin  
TA (°C)  
0 to 70  
M
N
DM  
D
Y
J
F
SG3842M  
SG3842N  
SG3842DM  
SG3842D  
SG3842Y  
SG3843Y  
SG2842Y  
SG2843Y  
SG1842Y  
SG1843Y  
SG3842J  
SG3843J  
SG2842J  
SG2843J  
SG1842J  
SG1843J  
—
—
—
—
—
—
—
—
—
—
SG3843M  
SG3843N  
SG3843DM  
SG3843D  
SG2842M  
SG2842N  
SG2842DM  
SG2842D  
—
-25 to 85  
-55 to 125  
MIL-STD/883  
DESC  
SG2843M  
SG2843N  
SG2843DM  
SG2843D  
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
SG1842L  
SG1843L  
SG1842Y/883B SG1842J/883B  
SG1843Y/883B SG1843J/883B  
SG1842L/883B  
SG1843L/883B  
SG1842Y/DESC SG1842J/DESC SG1842F/DESC SG1842L/DESC  
SG1843Y/DESC SG1843J/DESC SG1843F/DESC SG1843L/DESC  
Note: All surface-mount packages are available in Tape & Reel.  
F O R F U R T H E R I N F O R M AT I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1  
Copyright © 2000  
Rev. 1.6 4/00  
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841  
1
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中文翻译

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SG3843M 替代型号

型号 品牌 替代类型 描述 数据表
SG2843M MICROSEMI

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 CURRENT MODE PWM CONTROLLER
SG3842DM MICROSEMI

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UC2843N TI

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SG3843N MICROSEMI

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SG3843Y MICROSEMI

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SG3844D MICROSEMI

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 		CURRENT MODE PWM CONTROLLER
SG3844DM MICROSEMI

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 		CURRENT MODE PWM CONTROLLER
SG3844DMT MICROSEMI

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 		Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO8, PLASTIC
SG3844DT MICROSEMI

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 		Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, PLASTI
SG3844D-TR MICROSEMI

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 		Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, ROHS C
SG3844J MICROSEMI

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 		CURRENT MODE PWM CONTROLLER
SG3844M MICROSEMI

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 		CURRENT MODE PWM CONTROLLER
SG3844M-TR MICROSEMI

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 		Switching Controller, Current-mode, 1A, PDIP8, DIP-8

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