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SG1540Y

更新时间： 2024-11-28 22:43:15
品牌 Logo 应用领域
美高森美 - MICROSEMI 开关控制器
页数 文件大小 规格书
6页 82K
描述
OFF-LINE START-UP CONTROLLER

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中文翻译

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SG1540Y 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：DIP包装说明：DIP,
针数：8Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.76模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：35 V最小输入电压：7 V
标称输入电压：15 VJESD-30 代码：R-CDIP-T8
JESD-609代码：e3长度：10.415 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-55 °C最大输出电流：0.2 A
封装主体材料：CERAMIC, METAL-SEALED COFIRED封装代码：DIP
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：5.08 mm表面贴装：NO
切换器配置：SINGLE最大切换频率：400 kHz
温度等级：MILITARY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

SG1540Y 数据手册

 浏览型号SG1540Y的Datasheet PDF文件第2页浏览型号SG1540Y的Datasheet PDF文件第3页浏览型号SG1540Y的Datasheet PDF文件第4页浏览型号SG1540Y的Datasheet PDF文件第5页浏览型号SG1540Y的Datasheet PDF文件第6页 
SG1540/SG2540/SG3540  
OFF-LINE START-UP CONTROLLER  
DESCRIPTION  
FEATURES  
The SG1540 is an integrated circuit designed to efficiently provide  
start-up power from a high-voltage DC bus to a PWM control circuit  
in a switching power supply. When used on the primary side, it  
reduces start-up current to less than 1mA and allows any standard  
PWM control circuit to be used as a primary-side controller. When  
used to power a controller on the secondary side, it efficiently  
eliminates the need for a heavy 50/60Hz line transformer with its  
associated low frequency magnetic fields.  
• Useable with primary and secondary side PWM  
controllers  
• Micropower comparator / switch  
- Internal 2.5V bandgap reference  
- 50mA power switch  
• Squarewave oscillator  
- 500Hz to 200KHz operation  
- 200mA totem pole outputs  
• Eliminates bulky, expensive 50/60 Hz transformer  
• Minimizes high voltage bleeder current  
• Programmable start-up voltage and hysteresis  
• Internal and programmable overvoltage crowbar  
latch  
The circuit consists of three sections: a micropower bandgap  
comparator/power switch referenced to 2.5 volts which isolates the  
start-up capacitor from its load; a high frequency square-wave  
oscillator with 200mA totem-pole output for driving an isolation  
transformer; and a second bandgap comparator with latching  
crowbar to protect against overvoltage faults while starting or  
running.  
• Available in 8 pin DIP, 10 pin flat pack, and 16 pin  
widebody SOIC  
HIGH RELIABILITY FEATURES - SG1540  
The SG1540 is specified for operation over the full military ambient  
temperature range of -55°C to 125°C. The SG2540 is character-  
ized for the industrial range of -25°C to 85°C, and the SG3540 is  
designed for the commercial range of 0°C to 70°C.  
♦ Available to MIL-STD - 883  
♦ LMI level "S" processing available  
BLOCK DIAGRAM  
4/90 Rev 1.1 2/94  
LINFINITY Microelectronics Inc.  
Copyright 1994  
11861 Western Avenue ∞ Garden Grove, CA 92841  
1
(714) 898-8121 ∞ FAX: (714) 893-2570  
123456

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