Product Information

SG2844DM

Name: SG2844DM
Brand: Microchip
SKU: SG2844DM_Microchip
Availability: OutOfStock
Rating: 5 (11 reviews)

SG2844DM electronic component of Microchip

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Datasheet

Switching Controllers Current Mode PWMs

Manufacturer: Microchip

This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges

Price (USD)

N/A

Obsolete

More Buying Options & Price Grid(s)

Availability	Price	Quantity
0 - WHS 1 MOQ : 1 Multiples : 1 SG2844DM Microchip	1 : USD 5.5065 10 : USD 4.9143	N/A Obsolete

0 - WHS 2 MOQ : 1 Multiples : 1 SG2844DM Microchip	1 : USD 8.0878 10 : USD 7.3583 25 : USD 6.9143 100 : USD 6.4448 250 : USD 6.1404 500 : USD 5.8232 1000 : USD 5.5314 2500 : USD 5.5187 5000 : USD 5.1	N/A Obsolete

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Additional Infomation About Product

SG1844/SG1845 /SG3844/SG3845 Current Mode PWM Controller Features Description Optimized for Off-Line Control The SG1844/45 family of control ICs provides all the Low Start-Up Current (<1mA) required features to implement off-line Fixed Frequency, Current-mode switching power supplies Automatic Feed Forward Compensation with a minimum number of external components. Trimmed Oscillator Current-mode architecture demonstrates improved line Discharge Current regulation, improved load regulation, pulse-by pulse Pulse-By-Pulse Current Limiting current limiting and inherent protection of the power Enhanced Load Response Characteristics supply output swi tch. Undervoltage Lockout with 6V Hysteresis The Bandgap reference is trimmed to 1% over (SG1844 only) temperature. Oscillator discharge current is trimmed to Double Pulse Suppression less than 10%. The SG1844/45 has under-voltage High-Current Totem-Pole Output lockout, current-limiting circuitry and start-up current of Internally Trimmed Bandgap Reference less than 1mA. The totem-pole output is optimized to 500kHz Operation drive the gate of a power MOSFET. The output is low in the off state to provide direct interface to an N- Under-voltage Lockout channel device. Both operate up to a maximum duty SG1844 - 16 Volts cycle range of zero to <50% due to an internal toggle SG1845 - 8.4 Volts flip-flop which blanks the output off every other clock Low Shoot-through Current <75mA Over cycle. The SG1844/45 is specified for operation over Temperature the full military ambient temperature range of -55C to 125C. The SG3844/45 is designed for the commercial Application range of 0C to 70C. Available to MIL-STD-883 Available to DSCC Standard Microcircuit Drawing (SMD) SGR1844/45 Rad-Tolerant Version Available Product Highlight R ST I AC ST INPUT V cc SG3844 Figure 1 Product Highlight November 2014 Rev. 1.7 www.microsemi.com 1 2014 Microsemi Corporation- Analog Mixed Signal Group Current Mode PWM Controller Connection Diagrams and Ordering Information Ambient Type Packaging Package Part Number Connection Diagram Temperature Type COM V REF V V FB CC SG3844M OUTPUT I SENSE 8-PIN PLASTIC GND R /C M T T DUAL INLINE 0C to 70C PDIP PACKAGE M PACKAGE (Top View) SG3845M M Package: RoHS / Pb-free 100% Matte Tin Lead Finish SG1844Y V COM REF V SG1845Y V FB CC OUTPUT I SENSE 8-PIN SG1844Y-883B GND -55C to CERAMIC R /C T T Y CERDIP 125C DUAL INLINE SG1845Y-883B Y PACKAGE PACKAGE (Top View) SG1844Y-DESC PbSn Tin Lead Finish SG1845Y-DESC COM V REF V FB V SG3844DM CC 8-PIN SMALL I SENSE OUTPUT OUTLINE 0C to 70C DM SOIC R /C GND T T INTEGRATED CIRCUIT DM PACKAGE SG3845DM (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish COM V REF N.C. N.C. SG3844D V V CC FB V 14-PIN SMALL C N.C. OUT UT OUTLINE I SENSE 0C to 70C D SOIC GND N.C. INTEGRATED WR GND R /C T T CIRCUIT SG3845D D PACKAGE (Top View) RoHS / Pb-free 100% Matte Tin Lead Finish 2

HS Compliance

Tariff Desc

8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:

Microchip may also be referenced as

AT9
ATM
Atmel
Atmel Wireless (VA)
M4S
M6S
M8S
M9S
MCP
Micrel
Micrel Inc
MICREL SEMICONDUCTOR
MICREL SYNERGY SEMI
MICROCHIP (ATMEL)
MICROCHIP (MICREL)
MICROCHIP (MICROSEMI)
MICROCHIP (SUPERTEX)
Microchip / Microsemi
Microchip / Vectron
Microchip Tech
MICROCHIP TECH.
Microchip Technology
Microchip Technology Micrel
Microchip Technology / Atmel
Microchip Technology / Micrel
MICROCHIPDIRECT
MICROSEMI
Microsemi Analog Mixed Signal Group
Microsemi Analog Mixed Signal Group [MIL]
Microsemi Commercial Components Group
MICROSEMI COMMUNICATIONS INC.
Microsemi Consumer Medical Product Group
Microsemi Corporation
Microsemi FTD
Microsemi Power Management Group
Microsemi Power Products Group
Microsemi SoC
MICROSEMI/LAWRENCE
MICROSEMI/LINFINITY
MSC
Roving Networks
ROVING NETWORKS INC
ROVING NETWORKS INC.
ROVING NETWORKS, INC.
Silicon Storage
SILICON STORAGE TECH
SILICON STORAGE TECHNOLOGY
Supertex
Vectron
VECTRON INTERNATIONAL
VECTRON INTL
Vitesse Microsemi
Vitesse / Microsemi

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