RDR-83 Datasheet, PDF (16/36 Pages) Power Integrations, Inc. – Reference Design Report for 1.6 W, Linear Replacement Adapter with 10 kV surge withstand

RDR-83 7.7 V, 210 mA Adapter with 10 kV surge withstand
29-Sept-06
NP
ALG
BM
BAC
ur
LG
BWE
OD
INS
DIA
AWG
CM
CMA
178
Primary Winding Number of Turns
110 nH/T^2 Gapped Core Effective Inductance
1490 Gauss
745 Gauss
1654
Maximum Operating Flux Density, BM<1500 is
recommended
AC Flux Density for Core Loss Curves (0.5 X
Peak to Peak)
Relative Permeability of Ungapped Core
0.20 Mm
Gap Length (Lg > 0.1 mm)
17.2 Mm
Effective Bobbin Width
0.10 Mm
0.02 Mm
0.07 Mm
Maximum Primary Wire Diameter including
insulation
Estimated Total Insulation Thickness (= 2 * film
thickness)
Bare conductor diameter
41 AWG
8 Cmils
Primary Wire Gauge (Rounded to next smaller
standard AWG value)
Bare conductor effective area in circular mils
150 Cmils/Amp Primary Winding Current Capacity (150 < CMA <
500)
TRANSFORMER SECONDARY DESIGN PARAMETERS
Lumped parameters
ISP
ISRMS
IRIPPLE
CMS
1.30 Amps
0.47 Amps
0.42 Amps
93 Cmils
AWGS
30 AWG
DIAS
ODS
0.26 Mm
0.51 Mm
INSS
0.12 Mm
Peak Secondary Current
Secondary RMS Current
Output Capacitor RMS Ripple Current
Secondary Bare Conductor minimum circular
mils
Secondary Wire Gauge (Rounded up to next
larger standard AWG value)
Secondary Minimum Bare Conductor Diameter
Secondary Maximum Outside Diameter for Triple
Insulated Wire
Maximum Secondary Insulation Wall Thickness
VOLTAGE STRESS PARAMETERS
VDRAIN
PIVS
- Volts
44 Volts
Peak Drain Voltage is highly dependent on
Transformer capacitance and leakage
inductance. Please verify this on the bench and
ensure that it is below 650 V to allow 50 V
margin for transformer variation.
Output Rectifier Maximum Peak Inverse Voltage
TRANSFORMER SECONDARY DESIGN PARAMETERS (MULTIPLE OUTPUTS)
1st output
VO1
IO1
PO1
VD1
7.7 Volts
0.211 Amps
1.63 Watts
0.9 Volts
Main Output Voltage (if unused, defaults to
single output design)
Output DC Current
Output Power
Output Diode Forward Voltage Drop
NS1
17.00
Output Winding Number of Turns
Power Integrations
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