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SG2845DT PDF预览

SG2845DT

更新时间： 2024-11-23 12:58:43
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
12页 353K
描述
Switching Controller, Current-mode, 1A, 500kHz Switching Freq-Max, BIPolar, PDSO14, PLASTIC, SOIC-14

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SG2845DT 技术参数

是否Rohs认证： 不符合生命周期：Active
零件包装代码：SOIC包装说明：SOP, SOP14,.25
针数：14Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.64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：12 V
标称输入电压：15 VJESD-30 代码：R-PDSO-G14
JESD-609代码：e0长度：8.65 mm
功能数量：1端子数量：14
最高工作温度：85 °C最低工作温度：-25 °C
最大输出电流：1 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP14,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
认证状态：Not Qualified座面最大高度：1.75 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：SINGLE最大切换频率：500 kHz
技术：BIPOLAR温度等级：OTHER
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
宽度：3.9 mmBase Number Matches：1

SG2845DT 数据手册

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SG1844/SG1845 Series  
CURRENT MODE PWM CONTROLLER  
P R O D U C T I O N D A T A S H E E T  
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  
KEY FEATURES  
DESCRIPTION  
The SG1844/45 family of control ICs and start-up current of less than 1mA. The  
provides all the necessary features to totem-pole output is optimized to drive the  
implement off-line fixed frequency, current- gate of a power MOSFET. The output is low  
mode switching power supplies with a in the off state to provide direct interface to  
minimum number of external components. an N-channel device. Both operate up to a  
Current-mode architecture demonstrates maximum duty cycle range of zero to <50%  
improved line regulation, improved load due to an internal toggle flip-flop which  
regulation, pulse-by pulse current limiting blanks the output off every other clock  
and inherent protection of the power supply cycle. The SG1844/45 is specified for  
output switch. The bandgap reference is operation over the full military ambient  
trimmed to ±1% over temperature. Oscillator temperature range of -55°C to 125°C. The  
discharge current is trimmed to less than SG2844/45 is specified for the industrial  
±10%. The SG1844/45 has undervoltage range of -25°C to 85°C, and the SG3844/45  
„
„
„
„
„
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  
(SG1844 only)  
DOUBLE PULSE  
SUPPRESSION  
HIGH-CURRENT TOTEM-POLE  
OUTPUT  
INTERNALLY TRIMMED  
BANDGAP REFERENCE  
500kHz OPERATION  
UNDERVOLTAGE LOCKOUT  
SG1844 - 16 volts SG1845 - 8.4  
volts  
„
„
„
„
„
„
lockout, current-limiting circuitry  
is designed for the commercial range of 0°C  
to 70°C.  
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com  
„
„
PRODUCT HIGHLIGHT  
„
LOW SHOOT-THROUGH  
CURRENT <75mA OVER  
TEMPERATURE  
R
ST  
I
AC  
INPUT  
ST  
HIGH RELIABILITY  
FEATURES  
VCC  
„
„
AVAILABLE TO MIL-STD-883B  
LINFINITY LEVEL "S"  
PROCESSING AVAILABLE  
SG3844  
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 Compliant / Pb-free  
Transition DC: 0503  
RoHS Compliant / Pb-free  
Transition DC:0440  
SG3844M  
SG3844N  
SG3845N  
SG28424N  
SG2845N  
SG3844DM  
SG3844D  
SG3845D  
SG2842D  
SG2845D  
SG3844Y  
SG3845Y  
SG2844Y  
SG2845Y  
SG1844Y  
SG1845Y  
SG3844J  
SG3845J  
SG2844J  
SG2845J  
SG1844J  
0 to 70  
SG3845M  
SG2844M  
SG2845M  
SG3845DM  
SG2844DM  
SG2845DM  
-25 to 85  
-55 to  
125  
SG1844L  
SG1845L  
SG1845J  
MIL-  
STD/883  
DESC  
SG1842Y/883B  
SG1845Y/883B  
SG1844Y/DESC  
SG1844J/883B  
SG1845J/883  
SG1844J/DESC SG1844F/DESC SG1844L/DESC  
SG1844L/883B  
SG1845L/883B  
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LXSG3844N-TR)  
Copyright © 2000  
Rev. 1.6c,2006-02-02  
1
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