Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Part
Number
PH9184.011NL
PH9184.021NL
PH9184.034NL
Inductance
(1-3)
(mH
±45%)
12.2
15.0
6.8
Leakage
Inductance
(uH MAX)
12.5
15.0
5.0
Capacitance
(pF MAX)
28.5
26.5
31.5
DCR (1-3)
(Ω MAX)
1.9
2.1
1.4
DCR (4-6)
(Ω MAX)
2.4
1.4
2.2
MAX (1-3)
1
(V-µsec Max)
266
296
200
Turns Ratio
(1:3) (6:4)
1CT : 1CT
2CT : 1CT
3CT : 4CT
Isolated Voltage
(Vrms)
4000
Notes:
1. The ET Max is calculated to limit the core loss and temperature rise at 100KHz 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
4.
temperature rise which results from the core and copper losses.
A. To calculate total copper loss (W), use the following formula:
Copper Loss (W) = Irms_Primary
2
* DCR_Primary + Irms_
5.
2
Secondary *DCR_Secondary
6.
B. To calculate total core loss (W), use the following formula:
Core Loss (W) = 4.40E-10 * (Frequency in kHz)
1.67
* (180 * [ET/ET Max])
2.53
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) = 90 * (Core Loss(W) + Copper Loss (W))
Optional Tape & Reel packing can be ordered by adding a “T” suffix to the part number
(i.e. PH9184.011NL becomes PH9184.011NLT). Pulse complies to industry standard tape
and reel specification EIA481.
The “NL” suffix indicates an RoHS-compliant part number.
The temperature of the component (ambient plus the temperature rise) must be
within the stated operating temperature range.
Mechanical
PH9184.XXXXNL
6
6
4
4
Schematic
1
6
Primary
.370
[9.40]
.520
[13.21]
2
Primary
3
Secondary
5
Secondary
4
SCHEMATIC
PH9185.XXXNL
PH9184.XXXNL
.100[2.54]
.100X2[2.54X2]
.047[1.20]
DATE CODE
1
CTRY MFG
1
3
3
.394MAX[10.00]
SUGGESTED LAND PATTERN
(.394)
([10.00])
1
3
2X.100[2.54]
=.200±.008[5.08±.20]
Weight
...........................2.6grams
Tape & Reel
........................150/reel
Tray
......................................80/tray
Dimensions:
Inches
mm
.492 MAX
[12.50 MAX]
.016±.002
[.40±.05]
.079 REF
[2.00] REF
1
3
.100±.008
[2.54±.20]
.079 REF
[2.00] REF
(.378)
[9.60]
.512 MAX
[13.00 MAX]
.005[.13]
6 PLACES
6
4
Unless otherwise specified,
all tolerances are
±
.010
0,25
1
power.pulseelectronics.com
P782. D (06/18)
http://www.power.pulseelectronics.com/contact
High Isolation Power Transformers
EP7 Platform SMD
Application
PH9184NL is a series of high isolation power supply transformer drivers. Intended to operate in a fixed duty cycle Push
Pull topology, it is a part of a low cost solution for delivering lower power (up to 3W) from a low voltage source. A
typical implementation would be an isolated RS-485/RS-232 power supply driver circuit, the design is compatible with the
MAXIM™ MAX253 IC.
A schematic diagram for the Push Pull converter topology is given below.
V
IN
V
CC
D1
PH9184
V
OUT
DRIVER
IC
D2
GND
For a fixed 50% duty cycle mode of operation, the output voltage is simply determined by the input voltage and turns
ratio. So, with the available turns ratios, a variety of output voltages can be selected.
This transformer design conforms to UL60950-1 2 edition with basic insulation for a working voltage up to 300Vac.
3.2mm creepage and 3000Vrms isolation voltage is guaranteed to meet this requirement. The actual isolation and
creepage capability of the design exceeds these UL ratings.
MAXIM is a registered trademark of Maxim Integrated Products.
For More Information
Pulse Worldwide
Pulse Europe
Headquarters
Pulse Electronics GmbH
15255 Innovation Drive Ste 100
Am Rottland 12
San Diego, CA 92128
58540 Meinerzhagen
U.S.A.
Germany
Pulse China Headquarters
Pulse Electronics (ShenZhen) CO., LTD
D708, Shenzhen Academy of
Aerospace Technology,
The 10th Keji South Road,
Nanshan District, Shenzhen,
P.R. China 518057
Tel: 86 755 33966678
Fax: 86 755 33966700
Pulse North China
Room 2704/2705
Super Ocean Finance Ctr.
2067 Yan An Road West
Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
Pulse South Asia
3 Fraser Street
0428 DUO Tower
Singapore 189352
Pulse North Asia
1F., No.111 Xiyuan Rd
Zhongli City
Taoyuan City 32057
Taiwan (R.O.C)
Tel: 858 674 8100
Fax: 858 674 8262
Tel: 49 2354 777 100
Fax: 49 2354 777 168
Tel: 65 6287 8998
Fax: 65 6280 0080
Tel: 886 3 4356768
Fax: 886 3 4356820
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may
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