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EPR-9 Datasheet(PDF) 27 Page - Power Integrations, Inc.

Part # EPR-9
Description  Engineering Prototype Report 5 W, Universal Input, Dual Output, Isolated, TNY266 (EP9)
PDF  32 Pages
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Manufacturer  POWERINT [Power Integrations, Inc.]
Direct Link  http://www.powerint.com
Logo POWERINT - Power Integrations, Inc.

EPR-9 Datasheet(HTML) 27 Page - Power Integrations, Inc.

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03-April-2001
5 W Universal Input Dual Output Isolated TNY266
Appendix A1.3 Transformer Spreadsheet
Design Warning
Power Supply Input
VACMIN
Volts
85
Minimum AC Input Voltage
VACMAX
Volts
265
Maximum AC Input Voltage
FL
Hertz
50
AC Main Frequency
TC
mSeconds
2.46
Bridge Rectifier Conduction Time Estimate
Z
0.61
Loss Allocation Factor
N
%
72.0
Efficiency Estimate
Power Supply
Outputs
VOx
Volts
5.00
24.00 Output Voltage
IOx
Amps
0.500
0.104 Power Supply Output Current
Device Variables
Device
TNY266
Device Name
PO
Watts
5.00
Total Output Power
VDRAIN
Volts
521
Maximum Drain Voltage Estimate (Includes Effect of
Leakage Inductance)
VDS
Volts
4.5
Device On-State Drain to Source Voltage
FSnom
Hertz
132000
TinySwitch-II Switching Frequency
FSmin
Hertz
120000
TinySwitch-II Minimum Switching Frequency (inc. Jitter)
FSmax
Hertz
144000
TinySwitch-II Maximum Switching Frequency (inc.
Jitter)
KRPKDP
0.83
Ripple to Peak Current Ratio
ILIMITMIN
Amps
0.33
Device Current Limit, Minimum
ILIMITMAX
Amps
0.38
Device Current Limit, Maximum
IRMS
Amps
0.14
Primary RMS Current
DMAX
0.42
Maximum Duty Cycle
Power Supply Components
Selection
CIN
uFarads
15.0
Input Filter Capacitor
VMIN
Volts
86
Minimum DC Input Voltage
VMAX
Volts
375
Maximum DC Input Voltage
VCLO
Volts
130
Clamp Zener Voltage
PZ
W
0.3
Estimated Primary Zener Clamp Loss
Power Supply Output
Parameters
VDx
Volts
0.5
1.0 Output Winding Diode Forward Voltage Drop
PIVSx
Volts
39
180 Output Rectifier Maximum Peak Inverse Voltage
ISPx
Amps
1.78
0.37 Peak Secondary Current
ISRMSx
Amps
0.86
0.18 Secondary RMS Current
IRIPPLEx
Amps
0.69
0.14 Output Capacitor RMS Ripple Current
Page 27 of 32
Power Integrations, Inc.
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com



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