Isolation Power Transformers
EE5 Platform SMD
Push Pull Converter Transformer
Operational Insulation
1.5KVrms isolation (380Vrms continuous)
Compact and cost effective industrial design
Output: 1.0W max
Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Leakage Inductance
(1-3) with
Part
Inductance
Capacitance
DCR (1-3)
DCR (4-6)
MAX (1-3)1
Turns Ratio
Isolated Voltage
Number
(1-3)
(4-6) shorted (1, 2, 3) to (4, 5, 6)
(Ω MAX)
(Ω MAX)
(V-µsec Max)
(1:3) (6:4)
(Vrms)
(µH ±±35%
(µH MAX)
(pF MAX)
PH9084.011NL
PH9084.034NL
PH9084.043NL
PH9084.021NL
456
256
456
456
3.0
15
15
15
15
2.0
1.6
2.0
2.0
2.0
2.0
2.0
1.2
37
28
37
37
1CT : 1CT
3CT : 4CT
4CT : 3CT
2CT : 1CT
3.0
3.0
3.0
1500
Notes:
1. The ET Max is calculated to limit the core loss and temperature rise at 200KHz based on a
bipolar flux swing of 180mT Peak.
2. For Push-Pull topology, where the voltage is applied across half the primary winding
turns, the ET needs to be derated by 50% for the same flux swing.
3. The applied ET may need to be further derated for higher frequencies based on the
temperature rise which results from the core and copper losses
Core Loss (W) = 1.2E-12 * (Frequency in kHz)1.9 * (180 * [ET/ET Max])2.7
Where ET is the applied Volt Second, ET Max is the rated Volt Second for 180mT flux
swing
C. To calculate temperature rise, use the following formula:
Temperature Rise (°C) = 302 * (Core Loss(W) + Copper Loss (W))
4. Optional Tape & Reel packing can be ordered by adding a “T” suffix to the part number
(i.e. PH9084.011NL becomes PH9084.011NLT). Pulse complies to industry standard tape
A. To calculate total copper loss (W), use the following formula:
Copper Loss (W) = Irms_Primary2 * DCR_Primary + Irms_Secondary2*DCR_Secondary and reel specification EIA481.
B. To calculate total core loss (W), use the following formula:
5. The “NL” suffix indicates an RoHS-compliant part number.
Mechanical
Schematic
PH9084.XXXNL
1
2
3
6
5
4
PRIMARY
SECONDARY
Weight ...........................0.37grams
Tape & Reel ........................900/reel
Tray ......................................120/tray
Dimensions: mm
Unless otherwise specified,
all tolerances are 0.25
power.pulseelectronics.com
http://www.power.pulseelectronics.com/contact
P781. E (04/19)
1