TOP245P datasheet(13/25 Pages) POWERINT

13 / 25 page

DER-19

TOP245P Multiple Output Set Top Box

March 30, 2004

Page 13 of 25

Power Integrations, Inc.

Tel: +1 408 414 9200 Fax: +1 408 414 9201

www.powerint.com

VMIN

Volts

247

Minimum DC Input

Voltage

VMAX

Volts

375

Maximum DC Input

Voltage

VCLO

Volts

200

Clamp Zener Voltage

Watts

2.0

VDB

Volts

0.7

Bias Winding Diode

Forward Voltage Drop

PIVB

Volts

Bias Rectifier Maximum

Peak Inverse Voltage

Power Supply Output

Parameters

VDx

Volts

0.5

0.7

0.7 Output Winding Diode

Forward Voltage Drop

PIVSx

Volts

77 Output Rectifier

Maximum Peak Inverse

Voltage

ISPx

Amps

7.74

5.16

1.29

0.77 Peak Secondary

Current

ISRMSx

Amps

4.22

2.81

0.70

0.42 Secondary RMS

Current

IRIPPLEx

Amps

2.96

1.97

0.49

0.30 Output Capacitor RMS

Ripple Current

Transformer Construction

Parameters

Core/Bobbin

E30/15/7 Margin

Core and Bobbin Type

Core Manuf.

Generic

Core Manufacturing

Bobbin Manuf

Generic

Bobbin Manufacturing

uHenries

1181

Primary Inductance

Primary Winding

Number of Turns

8.26

Bias Winding Number

of Turns

OD Actual

0.25

Primary Actual Wire

Diameter

Primary

Current

Density

A/mm^2

Primary Winding

Current Density

VOR

Volts

135.00

Reflected Output

Voltage

17.30

Bobbin Physical

Winding Width

3.0

Safety Margin Width

2.0

Number of Primary

Layers

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