1power.pulseelectronics.com P724.B (03/18) http://www.power.pulseelectronics.com/contact
Switch Mode Transformer for
AC/DC ofine Applications
EE16H, EE16V, EF20H and EF25V Platforms
AC/DC ofine Switch Mode Transformer
Hipot up to 3000Vrms
Flyback Topology
Operational Insulation
Matched to Tiny Switch and Top Switch chipsets
Custom Design Available: <60W with up to Reinforced
Insulation
PH0256NL
Pri. Inductance (3-2) 2800µH±15%
FLYBACK TRANSFORMER
Lk. Inductance w/ (4,5,8,10) 65µH max shorted
DCR
(3-2)
(10-8)
(4-5)
3.3
ΩMax
0.02
0.13
Hi-Pot Pri-Sec 500 Vrms
K1 Factor 10100
PI IC’s TNY264/274
PH0259NL
Pri. Inductance (4-1) 1800µH±15%
FLYBACK TRANSFORMER
Lk. Inductance w/ (5,6,7,8) 60µH max shorted
DCR
(4,1)
(5-6)
(8-6)
2.556
ΩMax
0.0168
0.174
Hi-Pot Pri-Sec 500 Vrms
K1 Factor 7200
PI IC’s TNY266/274
PH0262NL
Pri. Inductance (3-1) 790µH±10%
FLYBACK TRANSFORMER
Lk. Inductance w/ (3-1)
(4,5,9,10) 30µH max shorted
DCR
(3-1)
(4-5)
(10-9)
1.085
ΩMax
0.015
0.026
Hi-Pot Pri-Sec
K1 Factor 4030
PI IC’s TNY279
Electrical Specifications @ 25C- Operating Temperature -40C to +125C
!
NC 5
6
8
1
4
95-265Vdc
132KHZ 12Vdc, 1.25A
9Vdc, 0.02A
24Vdc,
0.02A
5Vdc, 0.05A
5Vdc, 1A
9Vdc, 0.02A
80-375Vdc
132KHz
1power.pulseelectronics.com P724.B (03/18) http://www.power.pulseelectronics.com/contact
Switch Mode Transformer for
AC/DC ofine Applications
EE16H, EE16V, EF20H and EF25V Platforms
PH0270NL
Pri. Inductance (3-1) 876 µH±10%
FLYBACK TRANSFORMER
Lk. Inductance w/ (3-1)
(4,5,6,7,9,10) 28µH max shorted
DCR
(3-1)
(4-5)
(9-10)
0.5
ΩMax
0.026
0.025
Hi-Pot Pri-Sec 1500 Vrms
K1 Factor 2900
PI IC’s TOP244/245/246/254/264
Notes:
1. The temperature of the component (ambient plus temperature rise)
must be within the stated operating temperature range.
2. The above transformers and inductors have been tested and approved
by Pulse’s power IC partners and are sited in the appropriate datasheet or
evaluation board documentation at these companies. To determine which
IC and IC partners are matched with the above Pulse part numbers please
consult the IC Cross Reference on the Pulse website.
3. For flyback topology applications, it is necessary to ensure that the
transformer will not saturate in the application. The peak flux density (Bpk)
should remain below 2700Gauss. To calculate the peak density, use the
following formula: Bpk (Gauss) = K1_Factor * Ipk (A)
4. In high volt-sec applications, it is important to calculate the core loss of the
transformer. Approximate transformer core loss can be calculated as:
CoreLoss (W) = 3.6E-14 * (Freq_kHz) * (ΔB_Gauss) where ΔB can be calculated as:
For Flyback Topology: ΔB = K1_Factor * Δ(A)
For Forward Topology: ΔB = K1_Factor * Volt-µsec
5. The “NL” sux indicates an RoHS-compliant part number. Non-NL suxed
parts are not necessarily RoHS compliant, but are electrically and mechanically
equivalent to NL versions. If a part number does not have the “NL” sux, but an
RoHS compliant version is required, please contact Pulse for availability.
PH0256NL
Mechanical
!
1
9
6
3
5
4
7
10
PH0256NL
Mechanical
12Vdc, 2.5A
85V-265V
132KHz
12Vdc, 0.02A
1power.pulseelectronics.com P724.B (03/18) http://www.power.pulseelectronics.com/contact
Switch Mode Transformer for
AC/DC ofine Applications
EE16H, EE16V, EF20H and EF25V Platforms
PH0259NL
PH0262NL
Mechanical
Mechanical
.480
[12.20]
5X.106 =.531
[5X2.70 =13.50]
3X.138 =.413
[3X3.50 =10.50]
3X .138=.413
[3X 3.50 =10.50]
.630 MAX
[16.00]
.480
[12.20]
.710 MAX
[18.00]
.720 MAX
[18.30]
5X .106 =.531
[5X 2.70 =13.50]
5
4
10
1
PULSE PH0259NL
DATE CODE ORIGIN
4
1
510
.160 ā.02
0
[4.00ā0.50]
10X Ă.035
[Ă.90]
10X Ă.024
[Ă.60]
power.pulseelectronics.com http://www.power.pulseelectronics.com/contact
Pulse Worldwide
Headquarters
15255 Innovation Drive Ste 100
San Diego, CA 92128
U.S.A.
Tel: 858 674 8100
Fax: 858 674 8262
Pulse Europe
Pulse Electronics GmbH
Am Rottland 12
58540 Meinerzhagen
Germany
Tel: 49 2354 777 100
Fax: 49 2354 777 168
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.
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Shanghai 200336
China
Tel: 86 21 62787060
Fax: 86 2162786973
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3 Fraser Street
0428 DUO Tower
Singapore 189352
Tel: 65 6287 8998
Fax: 65 6280 0080
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Xiyuan Road
Zhongli District
Taoyuan City 32057
Taiwan (R.O.C)
Tel: 886 3 4356768
Fax: 886 3 4356820
For More Information
Performance warranty of products oered 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, 2018. Pulse Electronics, Inc. All rights reserved.
P724.B (03/18)
Switch Mode Transformer for
AC/DC ofine Applications
EE16H, EE16V, EF20H and EF25V Platforms
PH0270NL
Mechanical
15
6
10
Ă.032ā.004
[Ă0.80ā0.10]
1.12 MAX
[28.45 MAX]
DATE CODE ORIGIN
PH0270NLPULSE
PIN 1 IDENTIFICATION
(.500)
[(12.70)]
(.200)
[(5.08)]
.500ā.016
[12.70ā0.40)]
.200ā.008
[5.08ā0.20]
Ă.047
[Ă1.2]
CLASS B E119132 B8
.140ā.020
[3.50ā0.50]
1.10 MAX
[27.94 MAX]
.740 MAX
[18.80 MAX]