PFS7523LSLASHH datasheet(17/37 Pages) POWERINT

Part #	PFS7523L/H

Description	PFC Controller with Integrated High-Voltage MOSFET and Qspeed

PDF	37 Pages

Scroll/Zoom	100%

Manufacturer	POWERINT [Power Integrations, Inc.]

Direct Link	http://www.powerint.com

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17 / 37 page

Rev. D 04/25

PFS7523-7529/7533-7539

www.power.com

Figure 16. Heat Sink Assembly – using Thermally Conductive Adhesive.

(2X)

2. Screw

1. Heat Sink

4. HiperPFS-3

3. Thermally Conductive Adhesive

5. Eyelet Terminal − Electrical Connection to Heat Sink

The value of resistor R5 will have to be adjusted in some designs and

as a guideline the value from the following calculation can be used:

Maximum continuous output power in watts.

Nominal PFC output voltage in volts.

PFC output capacitance in farads.

Heat Sinking and Thermal Design

Figures 15, 16, 17 show an example of the recommended assembly

for the HiperPFS-3. In this assembly, no insulation pad is required

and HiperPFS-3 can be directly connected to the heat sink by

mechanical clip or adhesive thermal compound.

The HiperPFS-3 back metal is electrically connected to the heat sink

and the heat sink is required to be connected to the HiperPFS-3

source terminal in order to reduce EMI.

PFS7523L/H Datasheet(PDF) 17 Page - Power Integrations, Inc.