TOP245P datasheet(17/35 Pages) POWERINT

17 / 35 page

DER-18

DVD Recorder Supply – TOP245P

March 30, 2004

Page 17 of 35

Power Integrations

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

www.powerint.com

AWG

29 AWG

Primary Wire Gauge (Rounded to next

smaller standard AWG value)

128 Cmils

Bare conductor effective area in circular

mils

CMA

221 Cmils/

Amp

Primary Winding Current Capacity (200

< CMA < 500)

TRANSFORMER SECONDARY

DESIGN PARAMETERS (SINGLE

OUTPUT / SINGLE OUTPUT

EQUIVALENT)

Lumped parameters

ISP

18.13 Amps

Peak Secondary Current

ISRMS

8.60 Amps

Secondary RMS Current

5.00 Amps

Power Supply Output Current

IRIPPLE

7.00 Amps

Output Capacitor RMS Ripple Current

CMS

1721 Cmils

Secondary Bare Conductor minimum

circular mils

AWGS

17 AWG

Secondary Wire Gauge (Rounded up to

next larger standard AWG value)

DIAS

1.15 mm

Secondary Minimum Bare Conductor

Diameter

ODS

3.17 mm

Secondary Maximum Outside Diameter

for Triple Insulated Wire

INSS

1.01 mm

Maximum Secondary Insulation Wall

Thickness

VOLTAGE STRESS

PARAMETERS

VDRAIN

632 Volts

Maximum Drain Voltage Estimate

(Includes Effect of Leakage Inductance)

PIVS

26 Volts

Output Rectifier Maximum Peak Inverse

Voltage

PIVB

75 Volts

Bias Rectifier Maximum Peak Inverse

Voltage

TRANSFORMER SECONDARY

DESIGN PARAMETERS

(MULTIPLE OUTPUTS)

1st output

VO1

3.4

Volts

Output Voltage

IO1

2.550

Amps

Output DC Current

PO1

8.67 Watts

Output Power

VD1

0.5

Volts

Output Diode Forward Voltage Drop

NS1

2.13

Output Winding Number of Turns

ISRMS1

4.388 Amps

Output Winding RMS Current

IRIPPLE1

3.57 Amps

Output Capacitor RMS Ripple Current

PIVS1

18 Volts

Output Rectifier Maximum Peak Inverse

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