PA2492HL Datasheet, PDF (1/2 Pages) Pulse A Technitrol Company – Power Beads

smt POWer inductors
Power Beads - PA249xHL Series Coupled Inductors
Gen2.0 Coupled Inductors (PA249xHL) enables higher
efficiency due to lower switching losses and lower
conduction losses
For use only with Volterra^® multi-phase chipsets in
applications demanding a fast transient response and
high density
Halogen Free and RoHS compliant
Pulse
Part No.
PA2492HL
PA2493HL
PA2494HL
Electrical Specifications @ 25°C — Operating Temperature -40°C to +130°C
Number
of
Coupled
Phases
Equlavent¹
Transient
Inductance
per Phase
(nH)
Isat²
per Phase
(Apk)
L1
(1-2)
Magnetizing Inductance per Phase³
nH Min, 0Adc
L2
L3
(3-4)
(5-6)
L4
(7-8)
2
50
80
150
150
−
−
3
50
80
250
250
250
−
4
50
80
350
350
350
350
DCR/Phase⁴
(mW)
TYP
0.31
NOTES:
1. I n a non-coupled multi-phase topology, the power supply sees the same induc-
tance during transient and steady-state conditions. As a result, any attempt to
lower the inductance to improve transient response has the negative result of
increasing ripple and peak currents throughout the system during steady-state
operation. However, in a coupled inductor multi-phase topology, the interac-
tion of magnetic fields from each phase enables an overall reduction in ripple
current during steady-state operation and a lower equivalent inductance
during transient operation. The equivalent transient inductance per phase, as
listed, represents the actual value of inductance that would be required in an
non-coupled topology to realize the same transient performance. This value is
achieved by core and winding geometry and is not directly measured by Pulse.
For more information on the operation of the coupled inductor topology, please
contact Volterrra.
Mechanical
2.The rated current per phase is based on Volterra’s testing of the Pulse
coupled inductors.
3. The magnetizing inductance per phase is the measured inductance (at 0Adc)
across each phase when all other phases are open-circuit. The magnetizing
inductance is measured at 100kHz, 100mVrms.
4. The nominal value of DCR is measured from points a to b , as shown on the
mechanical drawing for PA2492HL.
Schematic
PA2492HL
2X .157
[4.00]
8X .138
[3.50]
.106
[2.70]
.276
[7.00]
.354 [9.00]
.925 [23.5] MAX.
PULSE PA2492HL
D/C
MFG
.433 [11.0]
MAX
L1
L2
1
23
4
.25
[6.35]
.197 [5.0]
MAX
.354
[9.00]
USA 858 674 8100 ● Germany 49 7032 7806 0 ● Singapore 65 6287 8998 ● Shanghai 86 21 62787060 ● China 86 755 33966678 ● Taiwan 886 3 4641811
www.pulseelectronics.com
1
P673.E (1/11)