SG3540Y

更新时间： 2024-11-10 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
6页	82K
描述
OFF-LINE START-UP CONTROLLER

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中文翻译

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技术参数
数据手册

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SG3540Y 技术参数

生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP,	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.73
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 V
JESD-30 代码：	R-PDIP-T8	长度：	10.415 mm
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：	0.2 A	封装主体材料：	PLASTIC/EPOXY
封装代码：	DIP	封装形状：	RECTANGULAR
封装形式：	IN-LINE	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：	COMMERCIAL	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
宽度：	7.62 mm	Base Number Matches：	1

SG3540Y 数据手册

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.

11861 Western Avenue ∞ Garden Grove, CA 92841

(714) 898-8121 ∞ FAX: (714) 893-2570

12 3 4 5 6

中文翻译

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与SG3540Y相关器件

型号	品牌	获取价格	描述	数据表
SG3542D	MICROSEMI	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BIPolar, PDSO14
SG3542J	MICROSEMI	获取价格	Power Supply Support Circuit, Fixed, 1 Channel, BIPolar, CDIP14
SG3543	MICROSEMI	获取价格	POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT
SG3543DW	MICROSEMI	获取价格	POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT
SG3543J	MICROSEMI	获取价格	POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT
SG3543N	MICROSEMI	获取价格	POWER SUPPLY OUTPUT SUPERVISORY CIRCUIT
SG3544	MICROSEMI	获取价格	LOW-VOLTAGE SUPERVISORY CIRCUIT
SG3544DW	MICROSEMI	获取价格	LOW-VOLTAGE SUPERVISORY CIRCUIT
SG3544J	MICROSEMI	获取价格	LOW-VOLTAGE SUPERVISORY CIRCUIT
SG3544N	MICROSEMI	获取价格	LOW-VOLTAGE SUPERVISORY CIRCUIT

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