Document 1280-1
Planar Transformers
POE120PL
120 W
PL160 Series
160 W
PL300 Series
300 W
MA5519-AL
720 W
NA5871-AL
800 W
• Low profile power transformers
• Very high efficiency; low DCR
• Can be used in a wide range of topologies
• 1500 Vrms, one minute isolation (hipot) between
windings
• Power range: 120 – 800 Watts
• Frequency range up to 700 kHz
Planar transformers are an ideal solution for high
frequency switch mode power converters. They offer
higher power density and higher current handling
capability in a lower profile compared with traditional wire
wound transformers.
A new planar transformer design, constructed with flat
coil windings and copper plates rather than multi-layer
PCBs, increases the power level (up to 800 W) and
lowers the leakage inductance. This design exceeds the
critical electrical requirement for topologies such as push
pull, half bridge, or full bridge. The POE120PL, PL160,
PL300, MA5519-AL, and NA5871-AL are new generation
planar transformers offering efficiency up to 98%.
Coilcraft custom designed planar transformers are used
in a wide variety of IC reference designs, as shown on
page 6. For applications not covered in the table, custom
designs are available on request.
POE120PL
• Designed for active clamp forward topology
• Operates at 200 kHz, with 36 – 72 Volt input
• Provides 0.009″ (0.229 mm) clearance above the seating
plane
• Includes a 12-Volt auxiliary winding
PL160
• Designed to operate between 200 kHz and 700 kHz with a
nominal 48 V input.
• Provides 0.009″(0.229 mm) clearance above the seating
plane
• May be special ordered with an auxiliary winding
PL300
• Designed to operate between 200 kHz and 700 kHz with a
nominal 48 V input.
• Provides 0.009″ (0.229 mm) clearance above the seating
plane
• May be special ordered with an auxiliary winding
MA5519-AL
• Developed for Texas Instruments PMP9219 LM5045 based
720 W Power Converter
• Provides 0.009″ (0.229 mm) clearance above the seating
plane
• Designed to operate at 400 kHz with 36 – 75 V input
• 12 V, 60 A output
• Listed as T2 on Texas Instruments BOM-PMP9219
NA5871-AL
• Developed for Texas Instruments PMP6712 Dual-Channel
800 Watt Full-Bridge Converter for PoE Power Sourcing (PSE)
• Designed to operate at 400 kHz with 38 – 60 V input
• 54 V, 15 A output
• Listed as T2 and T4 on Texas Instruments BOM-PMP6712
• Insulated bottom surface
Specifications subject to change without notice.
Please check our website for latest information.
Document 1280-1
Revised 11/16/15
Document 1280-2
Planar Transformers
Power
(W)
120
120
120
120
160
160
160
160
160
300
300
300
300
300
720
800
Part
number
1
POE120PL-33L_
POE120PL-50L_
POE120PL-12L_
POE120PL-24L_
PL160-100L
PL160-101L
PL160-102L
PL160-103L
PL160-104L
PL300-100L
PL300-101L
PL300-102L
PL300-103L
PL300-104L
MA5519-AL
NA5871-AL
Turns
Pri
1
Pri
2
Sec
12
—
2
8
—
2
8
—
4
8
—
8
4
4
5
5
6
4
5
6
7
8
6
3
4
5
5
6
6
4
5
6
7
8
—
—
4
4
4
4
4
4
4
4
4
4
4
5
Inductance
2
(µH)
50
50
50
50
153
194
240
290
345
211
330
423
588
768
190.8
42
Leakage
Inductance
3
(µH)
0.7
0.31
0.37
0.39
0.35
0.40
0.45
0.55
0.55
0.25
0.35
0.50
0.75
1.0
0.13
0.20
DCR max
4
(Ohms)
Pri
1
Pri
2
Sec
27.6
—
1.26
18.9
—
1.26
18.9
—
6.8
18.9
—
13.6
14.7
14.7
18.5
18.5
21.5
7.2
9.0
10.6
12.3
13.8
5.0
1.37
14.7
18.5
18.5
21.5
21.5
7.2
9.0
10.6
12.3
13.8
—
—
6.8
6.8
6.8
6.8
6.8
4.2
4.2
4.2
4.2
4.2
1.53
4.4
Volt-time
product
5
(V-µsec)
150
100
100
100
150
168
187
206
224
206
258
310
361
413
197
117
Schematic
B
B
B
B
A
A
A
A
A
A
A
A
A
A
C
D
1. When ordering the POE120PL or the PL160, specify
packaging
code:
POE120PL-24LD
Packaging: Blank
In trays, 36 per tray
D
= Optional tape and reel (additional cost), 13″ machine-
ready reel. EIA-481 embossed plastic tape. See tape
and reel specifications on page 2.
B
= Optional tape and reel (additional cost), less than full
reel. In tape, but not machine ready. To have a leader
and trailer added ($25 charge), use code letter D
instead.
To order a PL160 or PL300 with an optional
auxiliary winding,
add an
“X” and the turn count after the PL160 (PL300), e.g. PL160X3-100LB.
Turn counts of 2, 3, 4, 5, 7 and 9 are available for the auxiliary winding.
Parts with auxiliary windings are not stocked.
2. Inductance measured on an Agilent/HP 4284 at 200 kHz, 0.5 Vrms,
0 Adc between pins 2 and 5 with pins 3 and 4 connected.
3. Leakage inductance is for the primary connected in series with all sec-
ondary pins shorted.
4. DCR is measured across all windings.
5. Volt-time product is based on the entire primary winding and 3000 Gauss.
6. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Schematics
A
2
11
Pri
1
4
3
1T
10
C
2
15
Pri
8
1
Sec
11
16
Pri
2
5
1
1T
9
Sec
1T
8
Aux1
9
Aux2
10
Aux
(opt)
6
1T
8
D
1
6
B
Pri
2
4
5
1
Pri
4
10
Sec
11
Sec
8
Aux
6
Core material
Ferrite
Terminations
Matte tin over nickel over brass.
Ambient temperature
–40°C to +120°C
Storage temperature
Component: –40°C to +125°C.
Tray and tape and reel packaging: –40°C to +80°C
Resistance to soldering heat
Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL)
1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
PCB washing
Tested to MIL-STD-202 Method 215 plus an additional
aqueous wash. See
Doc787_PCB_Washing.pdf.
Specifications subject to change without notice.
Please check our website for latest information.
Document 1280-2
Revised 11/16/15
Document 1280-3
Planar Transformers
Calculating Efficiency
11
7.0
6.5
6.0
5.5
5.0
10
9
8
7
6
5
4
3
2
1
0
22
21
20
19
18
17
16
15
14
13
12
11
10
9
9
7
6
5
4
3
2
1
0
500 kHz
400 kHz
Core loss (W)
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
300 kHz
200 kHz
100 kHz
0
20
40
60
80
100
120
140
160
180
PL160
POE120PL
MA5519
NA5871
PL300
B
PK
[mT]
This graph represents core loss versus flux density for each series. By determining core loss and copper loss, the
overall efficiency can be estimated.
Efficiency (%) = (P
OUT
– (CORE_loss + COPPER_loss)/P
OUT
) × 100
where P
OUT
= desired V ×
I
Core loss is a function of core material, flux density swing (B = 2 × B
PK
), frequency, and core size. Use the following
equation for calculating peak flux density ( B
PK
) and then read CORE_loss from Y-axis on the graph.
B
PK
= K × Vin × Dmax / Freq × N
Where:
K = series factor (see table)
Vin = primary DC voltage
Dmax = maximum duty cycle
Freq = switching frequency in kHz
N = number of primary turns
Part / Series
number
POE120PL
PL160
PL300
MA5519
NA5871
/
K factor
80 × 10
2
80 × 10
2
58 × 10
2
45.5 × 10
2
38.5 × 10
2
Copper loss is a function of
Irms
and DC resistance of each winding. Use the following equation for calculating
copper loss.
COPPER_loss =
Irms(pri)
2
× DCR(pri) +
Irms(sec)
2
× DCR(sec)
Specifications subject to change without notice.
Please check our website for latest information.
Document 1280-3
Revised 11/16/15
Document 1280-4
Planar Transformers
Dot indicates pin 1
Internal code
11
10
9
8
7
∅
0.200
5,080
0.800
20,32
1
2
3
11
10
9
8
7
0.125
3,175
0.820 max
20,83
4
2
3
5
0.090
2,285
0.080
2,03
4
5
6
0.920 max
23,37
0.009
min
0,229
C
L
Recommended
Land Pattern
Height
(see table)
0.004 /0,102
C
L
0.390
9,91
Dash
number
-12L
-24L
-33L
inches
-50L
Dimensions are in
mm
Height max
(inches / mm)
0.352 / 8.94
0.380 / 9.64
0.407 / 10.34
0.375 / 9.53
0.050
1,27
0.080
2,03
Weight:
11.1 – 11.9 g
Packaging
36 per tray
Optional tape and reel packaging
POE120PL-12:
250/13″ reel
Plastic tape: 44 mm wide, 0.5 mm thick,
0.110
∅
32 mm pocket spacing, 9.40 mm pocket depth
2,79
POE120PL-24:
200/13″ reel
Plastic tape: 44 mm wide, 0.5 mm thick,
28 mm pocket spacing, 9.98 mm pocket depth
POE120PL-33:
200/13″ reel
Plastic tape: 44 mm wide, 0.5 mm thick,
28 mm pocket spacing, 10.68 mm pocket depth
POE120PL-50:
250/13″ reel
Plastic tape: 44 mm wide, 0.5 mm thick,
32 mm pocket spacing, 9.78 mm pocket depth
POE120-xxL
PL160-10xL
Dot indicates pin 1
XXXXY
XXXXY
Internal code
11
10
9
8
7
0.200
5,080
0.800
20,32
1
2
3
11
10
9
8
7
0.125
3,175
0.820 max
20,83
4
2
3
5
0.090
2,285
∅
4
5
6
0.920 max
23,37
0.009
min
0,229
C
L
0.080
2,03
Recommended
Land Pattern
Height
(see table)
Dash
number
-100L
0.004 /0,102
-101L
-102L
-103L
inches
-104L
Dimensions are in
mm
Height max
(inches / mm)
0.352 / 8.94
0.352 / 8.94
0.360 / 9.14
0.375 / 9.53
0.375 / 9.53
C
L
0.390
9,91
∅
0.110
2,79
0.050
1,27
0.080
2,03
Weight:
12.0 – 12.8 g
Packaging
36 per tray
Dot indicates pin 1
Internal code
1
11
10
9
8
7
11
10
9
8
7
0.150
3,81
PL300-10xL
2
3
1.050
max
26,67
4
5
0.313
7,95
0.1878 0.0626
4,77
1,59
0.110
Æ
2,79
2
3
4
5
6
XXXXY
1.160
max
29,46
1.00
25,40
0.130
Æ
3,30
Recommended
Land Pattern
Part
number
PL300-100L
PL300-101L
PL300-102L
PL300-103L
PL300-104L
Height max
(in / mm)
0.410 / 10.4
0.410 / 10.4
0.450 / 11.4
0.450 / 11.4
0.475 / 12.1
0.009
0,229 min
See
table
0.004 /0,102
0.080
2,03
0.10
2,54
inches
Dimensions are in
mm
Weight:
22.5 – 26.0 g
Packaging
25 per tray
Document 1280-4
Revised 11/16/15
Specifications subject to change without notice.
Please check our website for latest information.
Document 1280-5
Planar Transformers
Dot indicates pin 1
1
2
Internal code
1
16
15
2
0.110
Æ
(6)
2,79
16
15
1.37
max
34,7
0.60
15,24 0.45
11,43
C
L
0.133
3,38
Æ
0.54
0.36 13,71
9,14
MA5519-AL
XXXXY
Recommended
Land Pattern
8
9
11
10
8
9
11
10
0.133
3,38
Æ
1.34
max
34,0
1.16
29,46
0.009 min
0,229
0.689
max
17,5
0.006 /0,15
Weight:
53.9 g
Packaging
16 per tray
Dimensions are in
inches
mm
Dot indicates pin 1
Internal code
0.133
(4)
3,38
Æ
1
11
1
11
NA5871-AL
1.29
max
32,8
0.18
4.57
0.36
9,14
4
0.36
9,14
0.54
13,71
6
XXXXY
4
Recommended
Land Pattern
1.73
43,96
6
1.91
max
48,5
0.531
max
13,5
Insulator
0.006 /0,15
0.10
typ
2,54
Weight:
60 g
Packaging
20 per tray
Dimensions are in
inches
mm
Specifications subject to change without notice.
Please check our website for latest information.
Document 1280-5
Revised 11/16/15
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