TOP244YN View Datasheet(PDF) - Power Integrations, Inc

Part Name

Description

Manufacturer

TOP244YN

TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher

Power Integrations, Inc 

TOP242-250

Typical Uses of MULTI-FUNCTION (M) Pin (cont.)

+

DC

Input

Voltage

RIL

For RIL = 12 kΩ

ILIMIT = 69%

For RIL = 25 kΩ

ILIMIT = 43%

See Figures 54b, 55b

and 56b for other resistor

D

M

values (RIL) to select

different ILIMIT values.

CONTROL

C

-

S

PI-2517-022604

Figure 34. Externally Set Current Limit (Not Normally Required-See

M Pin Operation Description).

+

RLS 2.5 MΩ

ILIMIT = 100% @ 100 VDC

ILIMIT = 63% @ 300 VDC

DC

Input

Voltage

RIL 6 kΩ

D

M

CONTROL

C

-

S

PI-2518-040501

Figure 35. Current Limit Reduction with Line Voltage (Not Normally

Required-See M Pin Operation Description).

+

QR can be an optocoupler

output or can be replaced

by a manual switch.

DC

Input

Voltage

ON/OFF

QR

47

-

kΩ

D

M

CONTROL

C

S

Figure 36. Active-on (Fail Safe) Remote ON/OFF.

PI-2519-040501

+

QR can be an optocoupler

output or can be replaced

by a manual switch.

DC ON/OFF

Input

Voltage

QR

47 kΩ

D

RMC

M 45 kΩ

CONTROL

C

-

S

PI-2522-040501

Figure 37. Active-off Remote ON/OFF. Maximum Duty Cycle

Reduced.

18 M

12/04

Share Link: