EEWORLDEEWORLDEEWORLD

Part Number

Search

SG1540Y

Description
0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDIP8
CategoryPower/power management    The power supply circuit   
File Size80KB,6 Pages
ManufacturerMicrosemi
Websitehttps://www.microsemi.com
Environmental Compliance
Download Datasheet Parametric Compare View All

SG1540Y Overview

0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDIP8

SG1540Y Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Parts packaging codeDIP
package instructionDIP,
Contacts8
Reach Compliance Codecompli
ECCN codeEAR99
Analog Integrated Circuits - Other TypesSWITCHING CONTROLLER
control modeVOLTAGE-MODE
Control TechnologyPULSE WIDTH MODULATION
Maximum input voltage35 V
Minimum input voltage7 V
Nominal input voltage15 V
JESD-30 codeR-CDIP-T8
JESD-609 codee3
length10.415 mm
Humidity sensitivity level1
Number of functions1
Number of terminals8
Maximum operating temperature125 °C
Minimum operating temperature-55 °C
Maximum output current0.2 A
Package body materialCERAMIC, METAL-SEALED COFIRED
encapsulated codeDIP
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Maximum seat height5.08 mm
surface mountNO
Switch configurationSINGLE
Maximum switching frequency400 kHz
Temperature levelMILITARY
Terminal surfaceMatte Tin (Sn)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.62 mm
Base Number Matches1
SG1540/SG2540/SG3540
OFF-LINE START-UP CONTROLLER
DESCRIPTION
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.
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.
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.
FEATURES
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
Available in 8 pin DIP, 10 pin flat pack, and 16 pin
widebody SOIC
HIGH RELIABILITY FEATURES - SG1540
Available to MIL-STD - 883
LMI level "S" processing available
BLOCK DIAGRAM
4/90 Rev 1.1 2/94
Copyright
©
1994
1
11861 Western Avenue
Garden Grove, CA 92841
(714) 898-8121
FAX: (714) 893-2570
L
INFINITY
Microelectronics Inc.

SG1540Y Related Products

SG1540Y SG2540Y SG2540M SG2540DW SG2540 SG1540Y/883B SG1540
Description 0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDIP8 0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, CDIP8 0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDIP8 0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDSO16 0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDIP8 0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, CDIP8 0.1 A SWITCHING CONTROLLER, 400 kHz SWITCHING FREQ-MAX, PDIP8
Parts packaging code DIP - DIP SOIC - DIP -
package instruction DIP, - DIP, SOP, - DIP, -
Contacts 8 - 8 16 - 8 -
Reach Compliance Code compli - compli compli - unknow -
ECCN code EAR99 - EAR99 EAR99 - EAR99 -
Analog Integrated Circuits - Other Types SWITCHING CONTROLLER - SWITCHING CONTROLLER SWITCHING CONTROLLER - SWITCHING CONTROLLER -
control mode VOLTAGE-MODE - VOLTAGE-MODE VOLTAGE-MODE - VOLTAGE-MODE -
Control Technology PULSE WIDTH MODULATION - PULSE WIDTH MODULATION PULSE WIDTH MODULATION - PULSE WIDTH MODULATION -
Maximum input voltage 35 V - 35 V 35 V - 35 V -
Minimum input voltage 7 V - 7 V 7 V - 7 V -
Nominal input voltage 15 V - 15 V 15 V - 15 V -
JESD-30 code R-CDIP-T8 - R-PDIP-T8 R-PDSO-G16 - R-CDIP-T8 -
Number of functions 1 - 1 1 - 1 -
Number of terminals 8 - 8 16 - 8 -
Maximum operating temperature 125 °C - 85 °C 85 °C - 125 °C -
Minimum operating temperature -55 °C - -25 °C -25 °C - -55 °C -
Maximum output current 0.2 A - 0.2 A 0.2 A - 0.2 A -
Package body material CERAMIC, METAL-SEALED COFIRED - PLASTIC/EPOXY PLASTIC/EPOXY - CERAMIC, METAL-SEALED COFIRED -
encapsulated code DIP - DIP SOP - DIP -
Package shape RECTANGULAR - RECTANGULAR RECTANGULAR - RECTANGULAR -
Package form IN-LINE - IN-LINE SMALL OUTLINE - IN-LINE -
Certification status Not Qualified - Not Qualified Not Qualified - Not Qualified -
Maximum seat height 5.08 mm - 5.308 mm 1.75 mm - 5.08 mm -
surface mount NO - NO YES - NO -
Switch configuration SINGLE - SINGLE SINGLE - SINGLE -
Maximum switching frequency 400 kHz - 400 kHz 400 kHz - 400 kHz -
Temperature level MILITARY - OTHER OTHER - MILITARY -
Terminal form THROUGH-HOLE - THROUGH-HOLE GULL WING - THROUGH-HOLE -
Terminal pitch 2.54 mm - 2.54 mm 1.27 mm - 2.54 mm -
Terminal location DUAL - DUAL DUAL - DUAL -
width 7.62 mm - 7.62 mm 3.9 mm - 7.62 mm -
STM32F103C8T6 serial port download
The minimum system board of STM32F103C8T6 (made by myself) can run after downloading the program using the serial port, but the program disappears after reset or power failure. I want to know how to u...
ojk1989 stm32/stm8
Why is there a difference between using JLINK emulation and not using it?
My STM32's USART1 is connected to a GSM module. When I use JLINK online simulation, I can see data coming through the serial port after sending a text message. But I download the code directly to the ...
keidy stm32/stm8
Components List of the 2013 National Undergraduate Electronic Design Competition
[i=s]This post was last edited by paulhyde on 2014-9-15 03:45[/i] Official authentic...
生命奇迹泉 Electronics Design Contest
Error[e117]: Incompatible runtime models.
What does this mean and how can I solve it? Thanks a lot~~...
三生三世枕上书 RF/Wirelessly
What are the specific principles and implementation technologies of sandbox? Can anyone answer this question?
Everyone often talks about sandbox browsers, but they only know that there is such a thing, but they don't know what the specific principle of the sandbox is and what technology is used to implement i...
gogobox Embedded System
CLUE development board information
Some information about the CLUE development board is summarized for your referenceKey Features :The main chip is Nordic nRF52840 BLE, 1 MB flash, 256KB RAM, 64 MHz Cortex M4 core 1.3-inch 240×240 colo...
dcexpert MicroPython Open Source section

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2581  2242  2712  2547  1612  52  46  55  33  18 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号