TOP242 Ver la hoja de datos (PDF) - Power Integrations, Inc

Número de pieza

componentes Descripción

Fabricante

TOP242

Extended power, design elexible, integrated off-line switcher

Power Integrations, Inc 

TOP242-250

Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins (cont.)

+

DC

Input

Voltage

VUV = IUV x RLS

VOV = IOV x RLS

RLS 2 MΩ For RLS = 2 MΩ

VUV = 100 VDC

VOV = 450 VDC

D

L

DCMAX@100 VDC = 78%

CONTROL DCMAX@375 VDC = 38%

C

+

DC

Input

Voltage

QR can be an optocoupler

output or can be replaced by

a manual switch.

D

L 300 kΩ

CONTROL

C

For RIL = 12 kΩ

S

X

ILIMIT = 69%

S

-

RIL

12 kΩ

See fig. 55 for other

resistor values (RIL)

to select different ILIMIT

-

QR

ON/OFF

47 kΩ

values General PI-2629-040501 Information & Table of Contents PI-2640-040501

Figure 28. Line-Sensing and Externally Set Current Limit.

Figure 29. Active-on Remote ON/OFF.

Product Selector Guide 1

Data Sheets 2

Application Notes 3

Design Ideas 4

Design Tools 5

Quality and Reliability 6

Package Information 7

DPA-Switch DC-DC Seminar 8

LinkSwitch & TinySwitch-II AC-DC Seminar 9

TOPSwitch-GX AC-DC Seminar 10

Sales Representatives and Distributors 11

18 H

9/02

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