DER-60
Adapter – TNY268
May 27, 2005
8 Transformer Spreadsheets
Power Supply Input
Output 1
(main)
Description
Var
Value
Units
VACMIN
VACMAX
FL
TC
Z
85
265
50
2.51
0.58
Volts
Volts
Hertz
Min Input AC Voltage
Max Input AC Voltage
Line Frequency
mSeconds Diode Conduction Time
Loss Allocation Factor
Power Supply Outputs
Output 1
(main)
3.50
Description
Units
Var
Value
VOx
IOx
Volts
Output Voltage
Output Current
3.00
Amps
Device Variables
Output 1
(main)
Description
Var
Value
Units
Device
PO
VDRAIN
VDS
FSNOM
FSMIN
FSMAX
TNY268P
10.5
563
PI Device Name
Watts
Volts
Volts
Hertz
Hertz
Hertz
Total Output Power
Maximum Drain Voltage
Drain to Source Voltage
TinySwitch-II Switching Frequency
Minimum Switching Frequency
3.18
132000
120000
144000
Maximum Switching Frequency
Continuous/Discontinuous Operating Ratio
Warning! KRP/KDP is too low
Tip: Increase size of TinySwitch-II device,
increase efficiency (N), increase reflected
output voltage (VOR), increase minimum
input voltage (VACMIN) or consider device
family with larger power capability.
Current Limit Minimum
Current Limit Maximum
Primary RMS Current
Maximum Duty Cycle
KRPKDP
0.47
ILIMITMIN
ILIMITMAX
IRMS
0.51
0.59
0.29
0.50
Amps
Amps
Amps
DMAX
Power Supply Components Selection
Output 1
(main)
Var
Value
Units
Description
CIN
VMIN
VMAX
33.0
85.0
374.8
uFarads
Volts
Volts
Input Capacitance
Minimum DC Input Voltage
Maximum DC Input Voltage
VCLO
200
Volts
Clamp Zener Voltage
PZ
RLS1
2.0
2.0
Watts
MOhms
Primary Zener Clamp Loss
Line sense resistor
Power Supply Output Parameters
Power Integrations
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