LT1725IGN datasheet(7/28 Pages) LINER

tên linh kiện	LT1725IGN

Giải thích chi tiết về linh kiện	General Purpose Isolated Flyback Controller

PDF	28 Pages

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nhà sản xuất	LINER [Linear Technology]

Trang chủ	http://www.linear.com

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LT1725

1725f

BLOCK DIAGRA

COMP

ENDLY

MINENAB

tON

IAMP

FDBK

OSCAP

OSC

MOSFET

DRIVER

UVLO

VCC

3VOUT

3V REG

(INTERNAL)

BIAS

SOFT-START

LOAD

COMPENSATION

ISENSE

GATE

PGND

ROCMP

SFST

RCMPC

SGND

1725 BD

LOGIC

PI FU CTIO S

ENDLY (Pin 13): Pin for external programming resistor to

set enable delay time. See Applications Information for

details.

tON (Pin 14): Pin for external programming resistor to set

switch minimum on time. See Applications Information

for details.

VCC (Pin 15): Supply voltage for the LT1725. Bypass this

pin to ground with 1

µF or more.

GATE (Pin 16): This is the gate drive to the external power

MOSFET switch and has large dynamic currents flowing

through it. Keep the trace to the MOSFET as short as

possible to minimize electromagnetic radiation and volt-

age spikes. A series resistance of 5

Ω or more may help to

dampen ringing in less than ideal layouts.

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