TOP246RN Просмотр технического описания (PDF) - Power Integrations, Inc

Номер в каталоге

Компоненты Описание

производитель

TOP246RN

TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, 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

S

X

For RIL = 12 kΩ

ILIMIT = 69%

RIL

12 kΩ

See Figure 54b for

other resistor values

(RIL) to select different

ILIMIT values

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

+

QR can be an optocoupler

output or can be replaced by

a manual switch.

DC

Input

Voltage

D

L 300 kΩ

CONTROL

C

S

-

Figure 29. Active-on Remote ON/OFF.

QR

ON/OFF

47 kΩ

PI-2640-040501

Typical Uses of MULTI-FUNCTION (M) Pin

+

DC

Input

Voltage

CS S

M

D

SS

D

M

CD

S

CONTROL

C

-

S

PI-2508-081199

Figure 30. Three Terminal Operation (MULIT-FUNCTION Features

Disabled).

+

DC

Input

Voltage

VUV = IUV x RLS

VOV = IOV x RLS

RLS

2 MΩ For RLS = 2 MΩ

VUV = 100 VDC

VOV = 450 VDC

DCMAX@100 VDC = 78%

D

M

DCMAX@375 VDC = 38%

CONTROL

C

-

S

PI-2509-040501

Figure 31. Line-Sensing for Undervoltage, Over-Voltage and Line

Feed-Forward.

+

DC

Input

Voltage

6.2 V

2 MΩ

VUV = RLS x IUV

For Value Shown

RLS VUV = 100 VDC

22 kΩ

D

M

CONTROL

C

-

S

PI-2510-040501

Figure 32. Line-Sensing for Under-Voltage Only (Overvoltage

Disabled).

+

DC

Input

Voltage

2 MΩ

RLS

VOV = IOV x RLS

For Values Shown

VOV = 450 VDC

30 kΩ

1N4148

D

M

CONTROL

C

-

S

PI-2516-040501

Figure 33. Line-Sensing for Overvoltage Only (Under-Voltage

Disabled). Maximum Duty Cycle Reduced at Low Line

and Further Rediction with Increasing Line Voltage.

17 M

12/04

Share Link: