COILCRAFT GA2972-AL

Document 657 -1
SMT PFC Boost Inductor
For ON Semiconductor
NCP1606 PFC Controller
• Designed to operate in 100 Watt applications.
• Referenced as LBOOST in application note AND8282/D.
• Auxiliary winding provides zero current detection (ZCD)
information and can also supply power to the NCP1606.
• 500 Vrms winding to winding and winding to core isolation
Core material Ferrite
Terminations RoHS compliant tin-silver over tin over nickel over
phos bronze. Other terminations available at additional cost.
Weight 27 g
Ambient temperature –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature Component: –40°C to +125°C.
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
Packaging 24 parts per tray
PCB washing Only pure water or alcohol recommended
Part
number
GA2972-AL
Inductance1
±10% (µH)
330
DCR max (Ohms)
pri
aux
0.30
0.35
SRF2
(MHz)
Turns ratio
pri : aux
1.2
8:1
1. Inductance measured at 100 kHz, 1.1 Vrms, 0 Adc using an Agilent/
HP 4263B impedance analyzer or equivalent.
2. SRF tested on an Agilent/HP 4192A.
3. DC current at which the inductance drops the specified amount from its
value without current.
4. Current that causes the specified temperature rise from 25°C ambient.
5. Electrical specifications at 25°C.
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
Irms (A)4
Isat (A)3
10% drop 20% drop 30% drop 20°C rise 40°C rise
4.2
4.5
4.8
1.7
Dot indicates pin 1
2
Pri
1
5
Aux
4
0.551max
14,0
0.004 / 0,10
1.169
29,7
1.26 max
32,0
0.043
1,1
1.024
26,0
5
6
1.160
29,45
0.085
2,16
1
Recommended
Land Pattern
1.06
max
26,92
1
inches
Dimensions are in
mm
10
0.197
5,0
0.197
5,0
0.083
2,11
These parts are preproduction products for electrical evaluation only.
Specification subject to change without notice.
Document 657-1
© Coilcraft, Inc. 2009
2.3
Revised 01/22/09
Document 657 -2
SMT PFC Boost Inductor – GA2972-AL
L vs Current
L vs Frequency
10000
Inductance (µH)
Inductance (µH)
10000
1000
100
10
1000
100
10
0.01
1
0.1
10
Current (A)
1
10
100
1000
Frequency (kHz)
Irms Derating
120
110
90
80
70
60
50
40
25°C
Percent of rated Irms
100
30
20
10
0
-40
-20
0
20
40
60
80
100
120 140
Ambient temperature (°C)
These parts are preproduction products for electrical evaluation only.
Specification subject to change without notice.
Document 657-2
© Coilcraft, Inc. 2009
Revised 01/22/09