STR-Y6753 datasheet, PDF - EEWORLD Datasheet

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STR-Y6753: DescriptionSWITCHING REGULATOR; Categorysemiconductor Analog mixed-signal IC; File Size386KB，12 Pages; ManufacturerAllegro; Websitehttp://www.allegromicro.com/

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STR-Y6753 Overview

SWITCHING REGULATOR

STR-Y6753 Parametric

Parameter Name	Attribute value
Lead-free	Yes
EU RoHS regulations	Yes
state	ACTIVE
terminal coating	NOT SPECIFIED
Analog IC other types	SWITCHING REGULATOR

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STR-Y6753 and STR-Y6754

Off-Line Quasi-Resonant Switching Regulators

Features and Benefits

• TO–220F–7L package

• Lead (Pb) free compliance

• The built-in startup circuit reduces the number of external

components and lowers standby power consumption

• Multi-mode control allows high efficiency operation

across the full range of loads

• Auto burst oscillation mode for standby mode, for

improving low standby power at no load: input power

< 30 mW at 100 VAC and < 50 mW at 230 VAC

• Bottom-skip mode minimizes switching loss at medium to

low loads

▪

Internal MOSFET V

DSS

(min) is 650 V

▪

Internal MOSFET R

DS(on)

(max) 1.9

(STR-Y6753) or

1.4

(STR-Y6754)

• Built-in soft start function reduces stress applied to the

incorporated power MOSFET and peripheral components

• Step-on burst oscillation minimizes transformer

audible noise

• Built-in leading edge blanking (LEB) function eliminates

Continued on the next page…

Description

The STR-Y6753 and STR-Y6754 each comprise a power

MOSFET and a multi-functional monolithic integrated circuit

(MIC) controller designed for controlling switch mode power

supplies. The quasi-resonant mode of operation, coupled with

the bottom-skip function, allows high efficiency and low noise

at low to high operational levels, while burst oscillation mode

ensures minimum power consumption at standby.

In order to sustain low power consumption under low load and

in standby mode, the controller has built-in startup and standby

circuits. This enables output power for the STR-Y6753 up to

60 W with universal input or 100 W with a 380 VDC input,

and for the STR-Y6754 up to 67 W with universal input or

120 W with a 380 VDC input.

The compact 7-pin full mold package (TO220F-7L) reduces

board space by requiring a minimum of external components,

thus simplifying circuit design. This IC, including various

protection functions, is an excellent choice for standardized,

compact power supplies.

Package: 7-Pin TO-220F

Not to scale

Typical Application

VAC

PC1

OUT

Error Amp

D/ST

STR-Y6700

VCC

BD1

BD2

GND

Controller

Chip (MIC)

FB /

OLP

S/OCP

GND

PC1

OCP

The NF pin (No. 7) should be connected

to the GND pin (No. 4), which should be

at a stable ground potential, to ensure

stability of operation.

STR-Y6753-DS

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