Isolation Power Transformers
Toroid Platform SMD - PH9385.XXXNLT and PM2155.XXXNLT
Push Pull Converter Transformer
IEC 60950 and 61558 basic insulation
Compliant, 12mm creepage
4KVrms isolation (600Vrms continuous)
Patented:
US Patent 9,646,755
Part Number
Commerical
PH9385.011NL
PH9385.045NL
PH9385.034NL
PH9385.012NL
PH9385.038NL
Automotive
8
PM2155.011NL
PM2155.045NL
PM2155.034NL
PM2155.012NL
PM2155.038NL
Inductance
(1-4)
(μH
±35%)
3200
3200
2600
2600
2600
Electrical Specifications @ 25°C - Operating Temperature -40°C to +125°C
Leakage Inductance
Capacitance
DCR (1-4)
DCR (5-8)
(1-4) with (5-8) shorted
(1, 4) to (5, 8)
(Ω MAX)
(Ω MAX)
(μH MAX)
(pF MAX)
6.0
36
1.10
1.00
4.0
36
1.10
1.25
3.0
36
1.00
1.50
3.0
40
1.00
1.90
3.0
40
1.00
2.20
40
40
30
1.00
1.00
0.80
2.75
3.00
3.20
ET (1-4)
1
(V-μsec Max)
109
109
98
98
98
98
98
70
Turns Ratio
(1:4) (8:5)
1CT : 1CT
4CT : 5CT
3CT : 4CT
1CT : 2CT
3CT : 8CT
1CT : 3CT
2CT : 7CT
1CT :5CT
Isolated
Voltage
2
(Vrms)
4000
PH9385.013NL PM2155.013NL
2600
3.0
PH9385.027NL PM2155.027NL
2600
3.0
PH9385.015NL PM2155.015NL
1350
3.0
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
A. To calculate total copper loss (W), use the following formula:
Copper Loss (W) = Irms_Primary
2
* DCR_Primary + Irms_Secondary
2
*DCR_Second-
ary.
B. To calculate total core loss (W), use the following formula:
Core Loss (W) = 3.93E-10 * (Frequency in kHz)
1.7
* (180 * [ET/ET Max])
2.17
Where ET is the applied Volt Second, ET Max is the rated Volt Second for 180mT flux
swing
4.
5.
6.
7.
8.
C. To calculate temperature rise, use the following formula:
Temperature Rise (°C) = 100 * (Core Loss(W) + Copper Loss (W))
The AEC-Q200 temperature and humidity operational life testing was completed using
a dielectric strength test of 4000Vdc.
Optional Tape & Reel packing can be ordered by adding a “T” suffix to the part number
(i.e. PH9385.011NL becomes PH9385.011NLT). Pulse complies to industry standard tape
and reel specification EIA481.
The “NL” suffix indicates an RoHS-compliant part number.
Continuous isolation voltage confirmed by 125°C/1000hrs accelerated aging with the
bias voltage applied between primary and secondary windings.
The PM2155.XXXNLT part numbers are AEC-Q200 and IATF16949 certified. The mechani-
cal dimensions are 100% tested in production but do not necessarily meet aproduct
capability index (Cpk) >1.33 and therefore may not strictly conform to PPAP.
Mechanical
PH9385.0XNLT and PM2155.0XXNLT
.295 MAX
[7.5 MAX]
.005[0.13]
8 SURFACES
.079
[2.00]
6X.148±.010
[3.75±0.25]
(.030)
[0.75]
6X.148
[3.75]
Schematic
1
8
8
7
6
5
.600
[15.25]
2
3
7
6
4
5
7
6
1
2
3
.079
[2.00]
4
Weight
.............................2.5/grams
Tray
......................................80/tray
.591±.012
[15.00±0.30]
.669 MAX
[17 MAX]
PH9385.0xxNL
DATE CODE ORIGIN
PAT. PEND.
Dimensions:
Inches
mm
Unless otherwise specified,
all tolerances are
±
.010
0,25
http://www.power.pulseelectronics.com/contact
PIN 1 ID
.630 MAX
[16 MAX]
.006[0.15] MIN
1
power.pulseelectronics.com
P766. K (05/19)
Isolation Power Transformers
TAPE & REEL INFO
Toroid Platform SMD - PH9385.XXXNLT and PM2155.XXXNLT
Marking
Marking
W
A
K
0
P
1
Direction of tape
G
SURFACE MOUNTING TYPE, REEL/TAPE LIST
PART NUMBER
PH9385.XXXNLT/PM2155.XXXNLT
REEL SIZE (mm)
A
G
Ø330
32.4
P
1
24
TAPE SIZE (mm)
W
K
0
32
8.3
QTY
PCS/REEL
300
APPLICATION
PH9385.XXXNL 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 2.5W) from a low voltage source.
A typical implementation would be an isolated RS-485 power supply driver circuit, the design is compatible with the
MAXIM™ MAX253 IC. Other IC’s include Texas SN6501 UCC2808, Analog ADuM4070, ADuM447x.
A schematic diagram for the Push Pull converter topology is given below.
V
IN
V
CC
D1
PH9385
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 range can be extended by
implementing different topologies such as forward or bridge and can be used with controllers offered
by different IC vendors for a number of different applications.
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
be trademarks or registered trademarks of their respective owners. © Copyright, 2019. Pulse Electronics, Inc. All rights reserved.
2
power.pulseelectronics.com
P766. K (05/19)
http://www.power.pulseelectronics.com/contact
京公网安备 11010802033920号
EEWORLD
