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Микросхема SSC9522S SOP-18

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29-06-2019 в 12:08
61,72 руб
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Купить Микросхема SSC9522S SOP-18

 

High Efficiency, Low noise, Automatic Dead Time Adjustment

Control IC for Half-Bridge LLC Off-line Switching Regulators 

General Description

The SSC9522S is a controller IC (SMZ* method) for

half-bridge resonant type power supply, incorporating a

floating drive circuit for High-side MOSFET drive.

*SMZ = Soft-switched Multi-resonant Zero Current switch,

all switching periods work with soft switching operation.

The IC is suitable for high performance power supply

system with small size, high efficiency and low noise,

because for various power supply specifications, more

effective and easier design works are achievable with

effective functions as the Automatic Dead Time Adjustment,

the Uncontrollable Operation Detection and so on.

 

Features and Benefits

 Built-in floating drive circuit for High-side MOSFET

 Soft Start Function, reducing of power MOSFET stress and

preventing Uncontrollable Operation, at startup

 Uncontrollable Operation Detection Function on

pulse-by-pulse basis, improving the ability of transformer

output wattage because the frequency range is available

up to the resonant frequency, fO, and reducing power

MOSFET stress

 Automatic Dead Time Adjustment Function, not being

necessary to make the dead time adjustment for each

power supply specification

 Line Undervoltage Protection Function

(Brown-InBrown-Out Function)

Prevention of excessive input current and overheat at low

input voltage

 Protection Functions

External Latch Function ------------ Latch shutdown by

external signal input

Overcurrent Protection (OCP) ----- Pulse-by-pulse

Overvoltage Protection (OVP) ---- Latch shutdown

Overload Protection (OLP) -------- Latch shutdown

Thermal Shutdown (TSD) ---------- Latch shutdown

Electrical Characteristics

 Maximum rating of VCC 35V(MAX)

 Minimum frequency, F(MIN) 28.3kHz(TYP)

 Maximum frequency, F(MAX) 300kHz(TYP)

 Maximum dead - time, td(MAX) 2.45μs(TYP)

 Minimum dead - time , td(MIN) 0.50μs(TYP)

Applications

Switching power supplies for electronic devices such as:

 LCD and PDP TV

 Sarver

 Multi Function Printer

 Industrial Equipment

 Communications Equipment

Datasheet

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