LNK419G View Datasheet(PDF) - Power Integrations, Inc

Part Name

Description

MFG CO.

LNK419G

Single-Stage PFC, Primary-Side Constant Current Control and TRIAC Dimming/Non-Dimming Options

Power Integrations, Inc 

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LNK403-409/413-419

R13

D6

R12

D7

S

S

BR1

D1

R17

R20 C13

R4

VR2

D1

D5

R5

D3

R7

Bridge Rectifier

R9

D2

F1

B3

R18

Output

Rectifier

R6

Active Damper

MOSFET

Figure 13. RD-193 7 W Layout Example, Bottom Layer.

Quick Design Checklist

Maximum Drain Voltage

Verify that the peak VDS does not exceed 725 V under all

operating conditions including start up and fault conditions.

Maximum Drain Current

Measure the peak drain current under all operation conditions

including start up and fault conditions. Look for signs of

transformer saturation (usually occurs at highest operating

ambient temperatures). Verify that the peak current is less that

stated for the Absolute Maximum Rating in the data sheet.

Thermal Check

At maximum output power, both minimum and maximum line

voltage and ambient temperature; verify that temperature

specifications are not exceeded for the LinkSwitch-PH,

transformer, output diodes, output capacitors and drain clamp

components.

PI-5988-060110

12

Rev. D 08/11

www.powerint.com

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