DAK-85 Power Integrations, DAK-85 Datasheet - Page 15

• Manufacturer Part Number: DAK-85
• Description: DESIGN ACCELERATOR KIT LP SWITCH
• Manufacturer: Power Integrations
• Series: LinkSwitch®-LPr

Specifications of DAK-85

• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 1, Isolated
• Power - Output: 2W
• Voltage - Output: 6V
• Current - Output: 330mA
• Voltage - Input: 90 ~ 265VAC
• Regulator Topology: Flyback
• Frequency - Switching: 66kHz
• Board Type: Bare (Unpopulated) and Fully Populated
• Utilized Ic / Part: LNK562, LNK563, LNK564
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 596-1104

Note: Gap size was verified with transformer vendor as being acceptable. Higher flux
density resulted in peak audible noise of <35 dBA without enclosure, also acceptable as
a further 10 dB reduction is typical once inside sealed enclosure.
Page 15 of 32
R2
Recommended Bias Diode
DC INPUT VOLTAGE PARAMETERS
VMIN
VMAX
CURRENT WAVEFORM SHAPE PARAMETERS
DMAX
IAVG
IP
IR
IRMS
TRANSFORMER PRIMARY DESIGN PARAMETERS
LP
LP_TOLERANCE
NP
ALG
BM
BAC
ur
LG
BWE
OD
INS
DIA
AWG
CM
CMA
TRANSFORMER SECONDARY DESIGN PARAMETERS
Lumped parameters
ISP
ISRMS
IRIPPLE
CMS
AWGS
DIAS
ODS
INSS
VOLTAGE STRESS PARAMETERS
VDRAIN
PIVS
5.00
Info
Warning
1N400
2738 uHenries
1922 Gauss
1654
3.00 k-ohms
0.48
0.04 Amps
0.12 Amps
0.12 Amps
0.05 Amps
0.08 mm
17.2 mm
0.16 mm
0.04 mm
0.12 mm
1.68 Amps
0.65 Amps
0.56 Amps
0.32 mm
1.08 mm
0.38 mm
375 Volts
108
233 nH/T^2
801 Gauss
374 Cmils/Am
130 Cmils
80 Volts
37 AWG
20 Cmils
28 AWG
34 Volts
3
5 %
- Volts
p
Minimum DC Input Voltage
Maximum DC Input Voltage
Maximum Duty Cycle
Average Primary Current
Minimum Peak Primary Current
Primary Ripple Current
Primary RMS Current
Typical Primary Inductance. +/- 5%
Primary inductance tolerance
Primary Winding Number of Turns
Gapped Core Effective Inductance
!!! Info. Flux densities above ~ 1500 Gauss may produce
audible noise. Verify with dip varnished sample transformers.
Increase NS to greater than or equal to 11 turns or increase
VOR
AC Flux Density for Core Loss Curves (0.5 X Peak to Peak)
Relative Permeability of Ungapped Core
!!! INCREASE GAP>>0.1 (increase NS, decrease VOR,bigger
Core
Effective Bobbin Width
Maximum Primary Wire Diameter including insulation
Estimated Total Insulation Thickness (= 2 * film thickness)
Bare conductor diameter
Primary Wire Gauge (Rounded to next smaller standard AWG
value)
Bare conductor effective area in circular mils
Primary Winding Current Capacity (150 < CMA < 500)
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
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
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