EPR-29 Datasheet, PDF (14/36 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP-29 - Multiple Output 11 W (15.5 W peak) AC-DC Power Supply using TNY268P

EPR-29 – 4 Output, 11 W, Universal Input, DVD Supply
07-July-03
8 Transformer Spreadsheet
Design Warning (No Optimization)
Power Supply Input
VACMIN
VACMAX
FL
TC
Volts
90
Volts
265
Hertz
50
mSeconds
2.21
Z
0.52
N
%
79.0
Min Input AC Voltage
Max Input AC Voltage
AC Main Frequency
Bridge Rectifier Conduction Time
Estimate
Loss Allocation Factor
Efficiency Estimate
Power Supply Outputs
VOx
Volts
IOx
Amps
3.30 5.00 12.00 12.00 Output Voltage
0.700 1.450 0.400 0.100 Output Current
Device Variables
Device
PO
Watts
TNY268P/G
15.56
VDRAIN
VDS
FSNOM
FSMIN
FSMAX
KRPKDP
ILIMITMIN
ILIMITMAX
IRMS
DMAX
Volts
Volts
Hertz
Hertz
Hertz
Amps
Amps
Amps
643
2.9
132000
120000
144000
0.61
0.51
0.59
0.27
0.53
Device Name
Total Output Power
Warning! Device may be too
small or thermally limited for
continuous power level (PO).
Tip: Consider increasing
device size. If P/G or R-
package select larger device
(reduce current limit via X-pin)
or choose Y/F-package with
appropriat
Maximum Drain Voltage
Estimate (Includes Effect of
Leakage Inductance)
Device On-State Drain to Source
Voltage
TinySwitch-II Switching
Frequency
TinySwitch-II Minimum Switching
Frequency (inc. Jitter)
TinySwitch-II Maximum
Switching Frequency (inc. Jitter)
Ripple to Peak Current Ratio
Device Current Limit Minimum
Device Current Limit Maximum
Primary RMS Current
Maximum Duty Cycle
Power Integrations, Inc.
Tel: [phone] Fax: [phone]
www.powerint.com
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