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VERSA-PAC(R) Inductors and Transformers (Surface Mount)
Description RoHS 2002/95/EC * Six winding, surface mount devices that offer more than 500 usable inductor or transformer configurations * High power density and low profile * Low radiated noise and tightly coupled windings * Power range from 1 Watt - 70 Watts * Frequency range to over 1MHz * 500 VAC Isolation * Ferrite core material Applications * Inductors: buck, boost, coupled, choke, filter, resonant, noise filtering, differential, forward, common mode * Transformers: flyback, feed forward, push-pull, multiple output, inverter, step-up, step-down, gate drive, base drive, wide band, pulse, control, impedance, isolation, bridging, ringer, converter, auto Environmental Data * Storage temperature range: -55C to 125C * Operating ambient temperature range: -40C to +85C (range is application specific). The internal "hot spot" temperature defines the maximum allowable currents, which are limited to 130C, including ambient * Solder reflow temperature: +260C max for 10 seconds max.
Part (1) Number VPH1-1400-R(10) VP1-1400-R(10) VPH1-0190-R VP1-0190-R VPH1-0102-R VP1-0102-R VPH1-0076-R VP1-0076-R VPH1-0059-R VP1-0059-R VPH2-1600-R(10) VP2-1600-R(10) VPH2-0216-R VP2-0216-R VPH2-0116-R VP2-0116-R VPH2-0083-R VP2-0083-R VPH2-0066-R VP2-0066-R VPH3-0780-R(10) VP3-0780-R(10) VPH3-0138-R VP3-0138-R VPH3-0084-R VP3-0084-R VPH3-0055-R VP3-0055-R VPH3-0047-R VP3-0047-R L(BASE) H (NOM)(2) 201.6 +/-30% 89.6 +/-30% 27.4 +/-20% 12.2 +/-20% 14.7 +/-20% 6.5 +/-20% 10.9 +/-20% 4.9 +/-20% 8.5 +/-20% 3.8 +/-20% 160 +/-30% 78.4 +/-30% 21.6 +/-20% 10.6 +/-20% 11.6 +/-20% 5.7 +/-20% 8.3 +/-20% 4.1 +/-20% 6.6 +/-20% 3.2 +/-20% 132 +/-30% 63.2 +/-30% 23.3 +/-20% 11.2 +/-20% 14.2 +/-20% 6.8 +/-20% 9.3 +/-20% 4.5 +/-20% 7.94 +/-20% 3.8 +/-20% ISAT(BASE) Amps (TYP)(3)(4) 0.04 0.06 0.29 0.43 0.53 0.80 0.72 1.06 0.92 1.37 0.07 0.10 0.53 0.76 0.99 1.41 1.39 1.95 1.74 2.50 0.07 0.10 0.41 0.59 0.67 0.97 1.02 1.46 1.19 1.73 IRMS(BASE) Amps (TYP)(3)(5) 0.55 0.85 0.55 0.85 0.55 0.85 0.55 0.85 0.55 0.85 0.95 1.26 0.95 1.26 0.95 1.26 0.95 1.26 0.95 1.26 0.97 1.47 0.97 1.47 0.97 1.47 0.97 1.47 0.97 1.47 R(BASE) Ohms (MAX)(6) 0.344 0.145 0.344 0.145 0.344 0.145 0.344 0.145 0.344 0.145 0.159 0.090 0.159 0.090 0.159 0.090 0.159 0.090 0.159 0.090 0.14 0.061 0.14 0.061 0.14 0.061 0.14 0.061 0.14 0.061
Packaging * Supplied in tape and reel packaging, 600 (VP01), 300 (VP02), and 200 (VP03) per reel * Supplied in bulk packaging (VP04 and VP05) * VP04 & VP05 tape and reel packaging available. Please contact factory for details.
Volt-SEC(BASE) EPEAK(BASE) Vs J (MAX)(7) (TYP)(8) 0.11 32.9 21.8 0.11 32.9 0.77 21.8 0.77 32.9 1.45 21.8 1.45 32.9 1.92 21.8 1.92 32.9 2.48 21.8 2.48 48.3 0.29 33.7 0.29 48.3 2.11 33.7 2.11 48.3 3.94 33.7 3.94 48.3 5.47 33.7 5.47 48.3 7.01 33.7 7.01 39.8 0.24 27.7 0.24 39.8 1.36 27.7 1.36 39.8 2.23 27.7 2.23 39.8 3.38 27.7 3.38 39.8 4.00 27.7 4.00
Leakage Inductance (BASE) H (TYP) 0.212 0.096 0.212 0.096 0.212 0.096 0.212 0.096 0.212 0.096 0.165 0.083 0.165 0.083 0.165 0.083 0.165 0.083 0.165 0.083 0.125 0.058 0.125 0.058 0.125 0.058 0.125 0.058 0.125 0.058
Thermal Resistance C/Watt (TYP)(9) 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 60.7 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 44.0 43.4 43.4 43.4 43.4 43.4 43.4 43.4 43.4 43.4 43.4
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VERSA-PAC(R) Inductors and Transformers (Surface Mount)
Leakage Inductance (BASE) H (TYP) 0.156 0.075 0.156 0.075 0.156 0.075 0.156 0.075 0.156 0.075 0.235 0.105 0.235 0.105 0.235 0.105 0.235 0.105 0.235 0.105 Thermal Resistance C/Watt (TYP)(9) 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4 39.4 30.3 30.3 30.3 30.3 30.3 30.3 30.3 30.3 30.3 30.3
Part (1) Number VPH4-0860-R(10) VP4-0860-R(10) VPH4-0140-R VP4-0140-R VPH4-0075-R VP4-0075-R VPH4-0060-R VP4-0060-R VPH4-0047-R VP4-0047-R VPH5-1200-R(10) VP5-1200-R(10) VPH5-0155-R VP5-0155-R VPH5-0083-R VP5-0083-R VPH5-0067-R VP5-0067-R VPH5-0053-R VP5-0053-R
L(BASE) H (NOM)(2) 159.65 +/-30% 87.0 +/-30% 23.7 +/-20% 11.3 +/-20% 12.7 +/-20% 6.1 +/-20% 10.1 +/-20% 4.9 +/-20% 7.94 +/-20% 3.8 +/-20% 173 +/-30% 76.8 +/-30% 22.3 +/-20% 9.9 +/-20% 12 +/-20% 5.3 +/-20% 9.65 +/-20% 4.3 +/-20% 7.63 +/-20% 3.4 +/-20%
ISAT(BASE) Amps (TYP)(3)(4) 0.11 0.15 0.65 0.95 1.21 1.75 1.52 2.18 1.94 2.81 0.14 0.20 1.05 1.60 1.96 2.95 2.43 3.63 3.07 4.59
IRMS(BASE) Amps (TYP)(3)(5) 1.41 1.70 1.41 1.70 1.41 1.70 1.41 1.70 1.41 1.70 1.70 2.08 1.70 2.08 1.70 2.08 1.70 2.08 1.70 2.08
R(BASE) Ohms (MAX)(6) 0.0828 0.057 0.0828 0.057 0.0828 0.057 0.0828 0.057 0.0828 0.057 0.0711 0.047 0.0711 0.047 0.0711 0.047 0.0711 0.047 0.0711 0.047
Volt-SEC(BASE) EPEAK(BASE) Vs J (MAX)(7) (TYP)(8) 64.6 0.57 44.7 0.57 64.6 3.54 44.7 3.54 64.6 6.55 44.7 6.55 64.6 8.16 44.7 8.16 64.6 10.52 44.7 10.52 98.4 1.11 65.6 1.11 98.4 8.83 65.6 8.83 98.4 16.07 65.6 16.07 98.4 19.83 65.6 19.83 98.4 25.10 65.6 25.10
(1) The first three digits in the part number signify the size of the package. The next four digits specify the AL, or nanoHenries per turn squared. (2) LBASE = Nominal Inductance of a single winding. (3) IBASE is the lessor of ISAT(BASE) and IRMS(BASE). (4) Peak current that will result in 30% saturation of the core. This current value assumes that equal current flows in all six windings. For applications in which all windings are not simultaneously driven (i.e. flyback, SEPIC, Cuk, etc.), the saturation current per winding may be calculated as follows:
(8) Maximum Energy capability of each winding. This is based on 30% saturation of the core:
EnergySERIES = S x EnergyPARALLEL = P x
2
2
1 2 1 2
x
0.7LBASE x I SAT(BASE)
x
2
0.7LBASE x I SAT(BASE)
2
ISAT
=
6 x ISAT(BASE)
For multiple windings, the energy capability varies as the square of the number of windings. For example, six windings (either parallel or series) can store 36 times more energy than one winding. (9) Thermal Resistance is the approximate surface temperature rise per Watt of heat loss under still-air conditions. Heat loss is a combination of core loss and wire loss. The number assumes the underlying PCB copper area equals 150% of the component area. (10) These devices are designed for feed-forward applications, where load current dominates magnitizing current.
Number of Windings Driven
(5) RMS Current that results in a surface temperature of approximately 40C above ambient. The 40C rise occurs when the specified current flows through each of the six windings. (6) Maximum DC Resistance of each winding. (7) For multiple windings in series, the volt-secondTOTAL (Vs) capability varies as the number of windings in series (S):
Volt-secTOTAL = S x Volt-sec(BASE)
For multiple windings in parallel, the volt-secondTOTAL (Vs) capability is as shown in the table above.
VERSA-PAC temperature rise depends on total power losses and size. Any other PCM configurations other than those suggested could run hotter than acceptable. Certain topologies or applications must be analyzed for needed requirements and matched with the best VERSA-PAC size and configuration. Proper consideration must be used with all parameters, especially those associated with current rating, energy storage, or maximum volt-seconds. VERSA-PAC should not be used in off-line or safety related applications. The breakdown voltage from one winding to any other winding is 500 VAC maximum.
PCM
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VERSA-PAC(R) Inductors and Transformers (Surface Mount)
Mechanical Diagrams VPH1 VP1 and TOP VIEW
WHITE DOT PIN #1 WHITE DOT PIN #1 1 D D (12 PLCS) (12 PLCS) 6 6 B C B C FRONT VIEW FRONT VIEW E E F F I (12 PLCS) H I H (12 PLCS) WWLLYY R G (2 PLCS) WWLLYY R
A mm max 12.9 B mm ref 9.2 C mm max 13.0 D mm ref 0.7 E mm ref 5.9 F mm max 6.2 G mm ref 1.5
1
TOP VIEW LOGO (OPTIONAL) LOGO (OPTIONAL) 12 12 VPH_-_ _ _ _ A A J 7
7
G (2 PLCS)
RECOMMENDED PCB LAYOUT RECOMMENDED PCB LAYOUT N N M P M (10PLCS) P 1 12 (10PLCS) 1 12 K NOTES COMPONENT K (12PLCS) 0 1) Tolerances A - I are 0.25 mm COMPONENT SIDE J (12PLCS) 0 unless specified otherwise. SIDE (10PLCS) (10PLCS) 2) Tolerances J - P are +/- 0.1 mm 6 7 unless specified otherwise. L 6 7 3) Marking as shown L (12PLCS) a) Dot for pin #1 identification (12PLCS) 4 10 b) On top of unit: -- VPHx-xxx 4 10 (product code, size, 4 digit part number per family table.) 7 1 c) On top of unit: Versa Pac 11 7 5 1 Logo (optional) 11 5 d) On bottom of unit: wwllyy = (date code) R = (revision 8 2 level) 12 8 6 2 4) All soldering surfaces must be 12 6 coplanar within 0.102 mm. 3 1:1:1:1:1:1 3
H mm ref 0.1 I mm ref 0.25
VPH_-_ _ _ _ VPH_-_ _ _ _
9 9
L mm 2.25 M mm ref 9.7 N mm max 14.2 O mm 2.0 P mm 0.5
VP1 and VPH1
1:1:1:1:1:1 J K mm mm ref 11.5 1.5
TOP VIEW TOP VIEW WHITE DOT LOGO (OPTIONAL) WHITE DOT PIN #1 LOGO (OPTIONAL) PIN #1 1 12 D 1 12 D (12 PLCS) A (12 PLCS) A VPH_-_ _ _ _ J 7 B C FRONT VIEW FRONT VIEW E E F F I (12 PLCS) I H (12 PLCS) WWLLYY R H G (2 PLCS) WWLLYY R
A mm max 16.3 B mm ref 12.0 C mm max 16.8 D mm ref 0.7 E mm ref 6.7 F mm max 7.8
VP2 and VPH2
6 6 B C
7
G (2 PLCS)
RECOMMENDED PCB LAYOUT RECOMMENDED PCB LAYOUT N N M P M (10PLCS) P 1 12 (10PLCS) 1 12 K NOTES COMPONENT K (12PLCS) 0 1) Tolerances A - I are 0.25 mm SIDE COMPONENT J (12PLCS) 0 unless specified otherwise. SIDE (10PLCS) (10PLCS) 2) Tolerances J - P are +/- 0.1 mm 6 7 unless specified otherwise. L 6 7 3) Marking as shown (12PLCS) L a) Dot for pin #1 identification (12PLCS) 4 10 b) On top of unit: -- VPHx-xxx 4 10 (product code, size, 4 digit part number per family table.) 7 1 c) On top of unit: Versa Pac 11 7 5 1 Logo (optional) 11 5 d) On bottom of unit: wwllyy = (date code) R = (revision 8 2 level) 12 8 6 2 4) All soldering surfaces must be 12 6 coplanar within 0.102 mm. 3 1:1:1:1:1:1 3
G mm ref 2.0 H mm ref 0.1 I mm ref 0.30
9 9
L mm 2.5 M mm ref 13.0 N mm max 18.0 O mm 2.5 P mm 0.75
VP2 and VPH2
1:1:1:1:1:1 J K mm mm ref 14.25 1.75
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VERSA-PAC(R) Inductors and Transformers (Surface Mount)
Mechanical Diagrams VP3 and VPH3
WHITE DOT PIN #1 1 D 2 PLCS) TOP VIEW WHITE DOT PIN #1 TOP VIEW 12 12 VPH_-_ _ _ _ LOGO 7 (OPTIONAL) 6 B C B C FRONT VIEW FRONT VIEW E H (12 PLCS) E G (12 PLCS) H (12 PLCS) F (2 PLCS) G (12 PLCS) F (2 PLCS) 10 1:1:1:1:1:1 10 J K mm mm 7 7 N mm 2.54 O mm 0.75 1:1:1:1:1:1M L mm mm ref max 3.43 16.88 23.74 11 3 11 3 12 2 12 2 8 6 8 6 9 5 9 5 7 1 1 A A I J (12PLCS) I 1 1 COMPONENT SIDE J (12PLCS) 6 K (12PLCS) 6 K (12PLCS) 4 4 M L 12 O M (10PLCS) L
VPH_-_ _ _ _ 1 D LOGO (12 PLCS) (OPTIONAL) 6
12 N (10PLCS) COMPONENT SIDE 7 7
O (10PLCS) N (10PLCS)
NOTES
1) Tolerances A - I are 0.25 mm unless specified otherwise. 2) Tolerances J - P are +/- 0.1 mm unless specified otherwise. 3) Marking as shown a) Dot for pin #1 identification b) On top of unit: -- VPHx-xxx (product code, size, 4 digit part number per family table.) c) On top of unit: Versa Pac Logo (optional) d) On bottom of unit: wwllyy = (date code) R = (revision level) 4) All soldering surfaces must be coplanar within 0.102 mm.
A mm max VP3 and VPH3 17.1
B mm ref 16.0
C mm max 22.3
D mm ref 0.7
E mm max 8.4
F mm ref 3.0
G mm ref 0.1
H mm ref 0.4
I mm ref 14.49 1.79
VP4 and VPH4
WHITE DOT PIN #1 1 D 2 PLCS) TOP VIEW WHITE DOT PIN #1 TOP VIEW 12 12 VPH_-_ _ _ _ LOGO 7 (OPTIONAL) 6 B C B C FRONT VIEW FRONT VIEW E H (12 PLCS) E G (12 PLCS) H (12 PLCS) F (2 PLCS) G (12 PLCS) F (2 PLCS) 10 1:1:1:1:1:1 10 J K mm mm 7 7 N mm 2.5 O mm 0.75 1:1:1:1:1:1M L mm mm ref max 3.43 19.14 26.0 11 3 11 3 12 2 12 2 8 6 8 6 9 5 9 5 7 1 1 A A I J (12PLCS) I 1 1 COMPONENT SIDE J (12PLCS) 6 K (12PLCS) 6 K (12PLCS) 4 4 M L 12 O M (10PLCS) L
VPH_-_ _ _ _ 1 D LOGO (12 PLCS) (OPTIONAL) 6
12 N (10PLCS) COMPONENT SIDE 7 7
O (10PLCS) N (10PLCS)
NOTES
1) Tolerances A - I are 0.25 mm unless specified otherwise. 2) Tolerances J - P are +/- 0.1 mm unless specified otherwise. 3) Marking as shown a) Dot for pin #1 identification b) On top of unit: -- VPHx-xxx (product code, size, 4 digit part number per family table.) c) On top of unit: Versa Pac Logo (optional) d) On bottom of unit: wwllyy = (date code) R = (revision level) 4) All soldering surfaces must be coplanar within 0.102 mm.
A mm max VP4 and VPH4 18.0
B mm ref 18.0
C mm max 24.6
D mm ref 0.7
E mm max 10.0
F mm ref 3.3
G mm ref 0.1
H mm ref 0.4
I mm ref 14.25 1.75
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VERSA-PAC(R) Inductors and Transformers (Surface Mount)
Mechanical Diagrams VP5 and VPH5
WHITE DOT PIN #1 1 D (12 PLCS) TOP VIEW WHITE DOT PIN #1 TOP VIEW 12 12 VPH_-_ _ _ _ LOGO 7 (OPTIONAL) 6 B C B C FRONT VIEW FRONT VIEW E H (12 PLCS) E G (12 PLCS) H (12 PLCS) F (2 PLCS) G (12 PLCS) F (2 PLCS) 10 1:1:1:1:1:1 10 J K mm mm 3.15 7 7 1:1:1:1:1:1M L mm mm ref max 22.7 29.0 N mm 3.0 O mm 0.75 11 3 11 3 12 2 12 2 8 6 8 6 9 5 9 5 7 1 1 A A I J (12PLCS) I 1 1 COMPONENT SIDE J (12PLCS) 6 K (12PLCS) 6 K (12PLCS) 4 4 M L 12 O M (10PLCS) L
VPH_-_ _ _ _ 1 D LOGO (12 PLCS) (OPTIONAL) 6
12 N COMPONENT (10PLCS) SIDE 7 7
O (10PLCS) N (10PLCS)
NOTES
1) Tolerances A - I are 0.25 mm unless specified otherwise. 2) Tolerances J - P are +/- 0.1 mm unless specified otherwise. 3) Marking as shown a) Dot for pin #1 identification b) On top of unit: -- VPHx-xxx (product code, size, 4 digit part number per family table.) c) On top of unit: Versa Pac Logo (optional) d) On bottom of unit: wwllyy = (date code) R = (revision level) 4) All soldering surfaces must be coplanar within 0.102 mm.
A mm max VP5 and VPH5 21.0
B mm ref 21.0
C mm max 28.5
D mm ref 0.7
E mm max 10.8
F mm ref 2.95
G mm ref 0.1
H mm ref 0.4
I mm ref 17.25 2.25
Inductance Characteristics
OCL vs. Isat
100.0% 90.0% 80.0% 70.0%
% of OCL
60.0% 50.0% 40.0% 30.0% 20.0% 10.0% 0.0% 0.0%
20.0%
40.0%
60.0%
80.0%
100.0%
120.0%
140.0%
160.0%
180.0%
200.0%
% of Isat
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VERSA-PAC(R) Inductors and Transformers (Surface Mount)
HOW TO USE MULTIPLE WINDINGS
Discrete inductors combine like resistors, when connected in series or parallel. For example, inductors in series add and inductors in parallel reduce in a way similar to Ohm's Law.
LSeries = L1 + L2 + L3...Ln LParallel = 1/ [1/L1 + 1/ L2 + 1/ L3....1/Ln]
Windings on the same magnetic core behave differently. Two windings in series result in four times the inductance of a single winding. This is because the inductance varies proportionately to the square of the turns. Paralleled VERSA-PAC windings result in no change to the net inductance because the total number of turns remains unchanged; only the effective wire size becomes larger. Two parallel windings result in approximately twice the current carrying capability of a single winding. The net inductance of a given PCM configuration is based on the number of windings in series squared multiplied by the inductance of a single winding (L ). The current rating of a PCM configuration is derived by multiplying the maximum current rating of one winding (I ) by the number of windings in parallel. Examples of simple two-winding devices are shown below:
BASE BASE
Series Connected (2 Windings)
Parallel Connected (2 Windings)
10H 1 Amp 10H 1 Amp 10H 1 Amp 10H 1 Amp
LTOTAL = LBASE x S IMAX = IBASE x P = 1 Amp x 1 = 10 H x 2 = 1 Amp = 40 H
2
2
L
TOTAL
= LBASE x S IMAX = IBASE x P = 10 H x 1 = 1 Amp x 2 = 10 H = 2 Amps
2
2
Where:
LBASE =
Inductance of a single winding
P = Number of windings in parallel (use 1 with all windings in series) S = Number of windings in series
IBASE =
Maximum current rating of one winding
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VERSA-PAC(R) Inductors and Transformers (Surface Mount)
HOW TO PIN-CONFIGURE VERSA-PAC
(R)
Each VERSA-PAC can be configured in a variety of ways by simply connecting pins together on the Printed Circuit Board (PCB). As shown below, the connections on the PCB are equal to the pin configuration statement shown at the bottom of the schematic symbol. Connecting a number of windings in parallel will increase the current carrying capability, while connecting in series will multiply the inductance. Each VERSA-PAC part can be configured in at least 6 combinations for inductor use or configured in at least 15 turns ratios for transformer applications. Given 25 VERSA-PAC part numbers, this allows for at least 500 magnetic configurations. The PCM configurations can either be created by the designer or simply chosen from the existing PCM diagrams. The following inductor example shows 6 windings in series, which result in an inductance of 36 times the base inductance and 1 times the base current.
INDUCTOR EXAMPLE
FOR SIZES VP3, VP4 AND VP5
LTOTAL = 36 x LBASE
1 12 2 11 3 10 4 9 5 8 6 7 6 7 7
= 36 times the base Inductance from Data Table.
Component View 1 12
1
PIN CONFIGURATIONS (2,12)(3,11)(4,10)(5,9)(6,8)
Each VERSA-PAC may be used in at least 15 transformer applications. More than 375 transformer combinations may be achieved using the available 25 VERSA-PAC parts.
TRANSFORMER EXAMPLE
FOR SIZES VP3, VP4 AND VP5
1:5
1 12 2 11 3 10 4 9 5 8 6 7
12 7 1
1
12
LPRIMARY = 1 x LBASE
2
IPRI = 1 x IBASE
ISEC = 1 x IBASE
PIN CONFIGURATIONS (3,11)(4,10)(5,9)(6,8)
6
7
The PCM configurations may be selected from the examples on the following pages or created by the designer. Six PCM inductor and fifteen PCM transformer configurations and equivalent circuit schematics are shown. The printed circuit board layout in each example illustrates the connections to obtain the desired inductance or turns ratio. The examples may be used by the PCB designer to configure VERSA-PAC as desired. To assist the designer, VERSA-PAC phasing, coupling and thermal issues have been considered in each of the PCM configurations illustrated. Additionally, the inductance and current ratings, as a function of the respective base values from the following Data Tables, are shown in each PCM example. Turns ratios are also given for each PCM Transformer shown. It is important to carefully select the proper VERSA-PAC part in order to minimize the component size without exceeding the RMS current capability or saturating the core. The Data Tables indicate maximum ratings.
30.0
VP 5
Watts
back) uency
25.0 20.0
(R)
VP 4
15.0 10.0 5.0
VP 3 VP 2
VERSA-PAC(R) Inductors and Transformers (Surface Mount)
400 500
VP 1 VERSA-PAC (R) Performance Characteristics 0.0
100
Frequency, kHz Bipolar (Push-Pull) Power vs Frequency
200
300
Unipolar (Flyback) Power vs Frequency
40.0 35.0 30.0
70.0 60.0 50.0
VP 5 VP 5
Watts
Watts
-Pull) uency
40.0 30.0
Unipolar (Flyback) Power vs Frequency
25.0 20.0
VP 4
15.0 10.0
VP 4
20.0
VP 3 VP 2
VP 3
10.0 0.0 100 5.0
VP 2 VP 1
200 300 400 500
0.0 100
VP 1
200 300 400 500
Frequency, kHz
10000
+V
Frequency, kHz
70.0 These curves represent typical power handling capability. +V VERSA-PAC Indicated power levels may not be achievable with all configurations. VP5-0083
VERSA-PAC VP5-0083
1,2
60.0 50.0
RTN
+5V@ 1A
IC
3.3V Buck Converter RTN
Synchronous Controller IC
Synchronous 5V to 3.3V BuckController Converter With 5V Output
7 6
1,2
+5V@ 1A
Turns auge
This circuit utilizes the gap of the VP5-0083 to handle the 12.5 This circuit minimizes both board space and cost by eliminating a 40.0 Bipolar (Push-Pull)second regulator. VERSA-PAC's gap VP 5 + to prevent core Amp output current without saturating. In each of the five VERSAserves + 1000 PAC sizes, the gap is varied to achieve a selection of specific saturation during the switch on-time and also stores energy for the Power vs Frequency 30.0 inductance and current values (see VERSA-PAC Data Table). +5V load which is delivered during theVP 4 flyback interval. The +3.3V Size 5 buck winding is configured by placing two windings in series while +3.3V@ + All six windings are connected in Size 4 to minimize AC/DC parallel 20.0 4.2A the +5V is generated by an additional VP 3 flyback winding stacked on + VERSAcopper losses and to maximize heat 3 dissipation. With +3.3V@ 4.2A the 3.3V output. Extra windings are paralleled with primary Size 10.0 PAC, this circuit works well at or above 300 KHz. Also, the closed windings to handle more current. The VP 2 ratio of 2:1 adds 1.67V turns flux-path EFD geometry enables much lower radiation VP 1 to the +3.3V during the flyback interval to achieve +5V. Size 2 100 0.0 characteristics than open-path bobbin core style components. 200 300 400 500 100
12,11 3,4,5
12,11 3,4,5
7
Watts
6
LEVEL SHIFT
10,9,8
Maximum Turns
LEVEL SHIFT
10,9,8
+V
+V
1 2 3 4 5 6
+V
VERSA-PAC Frequency, kHz VP5-0083
12 11 1,2 10 9 8 7
12,11 3,4,5
Size 1
1 2 3 4 5 6 12 11 10 9 8 7
10000
VERSA-PAC VP5-0083 +3.3V@ 12.5A +
RTN
Synchronous Controller IC
VERSA-PAC VP5-0083
7
Synchronous Controller IC
Synchronous Controller IC
+5V@ 1A
6
+
+3.3V@ 12.5A +
10
RTN
RTN
LEVEL SHIFT
10,9,8
1000
+
+3.3V@ 4.2A
1
27 28
LITHIUM-ION BATTERY TO 3.3V SEPIC CONVERTER
29 30 31 32 33 34 35 VERSA-PAC
Maximum Turns 36 37 38 39 40 Wire Gauge vs American 41 42
Maximum Turns
Size 5 Size 4
VERSA-PAC Size VP5-0083
12 11 10 456
12 11 10 9 987 8 7 Size 1
3
VP5-0083 The voltage of a American Wire10 4 5 6 varies above and below Lithium-Ion Battery Gauge 12 11 +3.3V depending on the degree of charge. The SEPIC + +3.3V@ configuration takes advantage of VERSA-PAC's multiple tightly 6A + coupled windings. This results 9 8 lower ripple current which lowers in 7 123 noise and core losses substantially. The circuit does not require a + snubber to control the voltage "spike" associated with switch turnoff, and is quite efficient due to lower RMS current in the windings.
Controller IC W/Integral Switch
+V
100
Controller + IC Synchronous W/Integral Controller Switch
IC
1 2 3 4 123 5 6 +
Size 2
+
VERSA-PAC VP5-0083
+3.3V@ 6A
+3.3V@ 12.5A +
RTN
10
PM-4301 8/06 (c) Cooper Electronic Technologies 2006
Visit us on the Web at www.cooperbussmann.com 1225 Broken Sound Pkwy. Suite F Boca Raton, FL 33487 Tel: +1-561-998-4100 Toll Free: +1-888-414-2645 Fax: +1-561-241-6640
1
VERSA-PAC VP5-0083
12 11 10 456
This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper Electronic 27 28 29 30 31 32 33 34 35 36 37 +38 +3.3V@40 41 42 39 Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any6A products. Cooper Controller + IC Electronic Technologies also reserves the right to change or update, without notice, any technical informationAmerican3 Wire Gauge Once a product has been contained in 9this7 bulletin. W/Integral 12 8 Switch selected, it should be tested by the user in all possible applications. + Life Support Policy: Cooper Electronic Technologies does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.

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