TOP264(2010) View Datasheet(PDF) - Power Integrations, Inc

Part Name

Description

Manufacturer

TOP264
(Rev.:2010)

Integrated Off-Line Switcher with EcoSmart® Technology for Highly Effcient Power Supplies

Power Integrations, Inc 

TOP264-271

NOTES:

A. Derived during test from the parameters DCMAX, IB and IC(OFF) at 132 kHz.

B. For specifications with negative values, a negative temperature coefficient corresponds to an increase in magnitude with

increasing temperature, and a positive temperature coefficient corresponds to a decrease in magnitude with increasing

temperature.

C. Guaranteed by characterization. Not tested in production.

D. For externally adjusted current limit values, please refer to Figures 34 and 35 (Current Limit vs. External Current Limit Resistance)

in the Typical Performance Characteristics section. The tolerance specified is only valid at full current limit.

E.

I2f

calculation

is

based

on

typical

values

of

ILIMIT

and

fOSC,

i.e.

I2

LIMIT(TYP)

×

fOSC,

where

fOSC

=

66

kHz

or

132

kHz

depending

on

F

pin

connection. See fOSC specification for detail.

F. The device will start up at 18 VDC drain voltage. The capacitance of electrolytic capacitors drops significantly at temperatures

below 0 °C. For reliable start up at 18 V in sub zero temperatures, designers must ensure that circuit capacitors meet recom-

mended capacitance values.

G. Breakdown voltage may be checked against minimum BVDSS specification by ramping the DRAIN pin voltage up to but not

exceeding minimum BVDSS.

28

Rev. B 03/10

www.powerint.com

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