LQW18AN22NG0ZD [MURATA]

General Purpose Inductor, 0.022uH, 2%, 1 Element, SMD, CHIP, 0603;
LQW18AN22NG0ZD
型号: LQW18AN22NG0ZD
厂家: muRata    muRata
描述:

General Purpose Inductor, 0.022uH, 2%, 1 Element, SMD, CHIP, 0603

测试 射频感应器 电感器
文件: 总11页 (文件大小:298K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
SpecNo.JELF243A-9116B-01  
P.1/11  
Reference Only  
CHIP COIL (CHIP INDUCTORS) LQW18AN□□□□0ZD  
Murata Standard Reference Specification AEC-Q200】  
1. Scope  
This reference specification applies to LQW18AN_0ZD series, Chip coil (Chip Inductors) for automotive Electronics  
based on AEC-Q200 except for Power train and Safety.  
2. Part Numbering  
(ex) LQ  
Product ID Structure Dimension Applications Category Inductance Tolerance Features Application  
W
18  
(L×W)  
A
N
2N2  
D
0
Z
D
Packaging  
and  
Z:Automotive D:Taping  
Characteristics  
3. Rating  
Operating Temperature Range  
–55°C to +125°C  
Storage Temperature Range.  
–55°C to +125°C  
DC  
Self Resonant  
Inductance  
Q
(1)  
(min.)  
Rated  
Current  
(mA)  
ESD  
Rank  
6: 25kV  
Resistance Frequency  
(1)  
(max.)  
Customer  
MURATA  
Part Number  
Part Number  
(1)  
(MHz min.)  
(nH)  
2.2  
3.6  
Tolerance  
LQW18AN2N2D0ZD  
LQW18AN3N6C0ZD  
LQW18AN3N6D0ZD  
LQW18AN3N9C0ZD  
LQW18AN3N9D0ZD  
LQW18AN4N3C0ZD  
LQW18AN4N3D0ZD  
LQW18AN4N7D0ZD  
LQW18AN5N6C0ZD  
LQW18AN5N6D0ZD  
LQW18AN6N2C0ZD  
LQW18AN6N2D0ZD  
LQW18AN6N8C0ZD  
LQW18AN6N8D0ZD  
LQW18AN7N5C0ZD  
LQW18AN7N5D0ZD  
LQW18AN8N2C0ZD  
LQW18AN8N2D0ZD  
LQW18AN8N7C0ZD  
LQW18AN8N7D0ZD  
LQW18AN9N1C0ZD  
LQW18AN9N1D0ZD  
LQW18AN9N5D0ZD  
LQW18AN10NG0ZD  
LQW18AN10NJ0ZD  
LQW18AN11NG0ZD  
LQW18AN11NJ0ZD  
LQW18AN12NG0ZD  
LQW18AN12NJ0ZD  
LQW18AN13NG0ZD  
LQW18AN13NJ0ZD  
LQW18AN15NG0ZD  
LQW18AN15NJ0ZD  
LQW18AN16NG0ZD  
LQW18AN16NJ0ZD  
D:±0.5nH  
16  
25  
0.042  
700  
C:±0.2nH  
D:±0.5nH  
3.9  
0.059  
850  
4.3  
4.7  
5.6  
D:±0.5nH  
6.2  
6.8  
7.5  
8.2  
8.7  
0.082  
750  
C:±0.2nH  
D:±0.5nH  
6000  
35  
6
9.1  
9.5  
10  
0.11  
650  
D:±0.5nH  
11  
12  
13  
15  
16  
G:±2%  
J:±5%  
0.13  
0.16  
600  
550  
40  
5500  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.2/11  
ESD  
Rank  
6: 25kV  
Reference Only  
DC  
Resistance  
(1)  
Self Resonant  
Frequency  
(1)  
Inductance  
Q
Rated  
Current  
(mA)  
Customer  
Part Number  
MURATA  
Part Number  
(1)  
(min.)  
(nH)  
Tolerance  
(max.)  
(MHz min.)  
LQW18AN18NG0ZD  
LQW18AN18NJ0ZD  
LQW18AN20NG0ZD  
LQW18AN20NJ0ZD  
LQW18AN22NG0ZD  
LQW18AN22NJ0ZD  
LQW18AN24NG0ZD  
LQW18AN24NJ0ZD  
LQW18AN27NG0ZD  
LQW18AN27NJ0ZD  
LQW18AN30NG0ZD  
LQW18AN30NJ0ZD  
LQW18AN33NG0ZD  
LQW18AN33NJ0ZD  
LQW18AN36NG0ZD  
LQW18AN36NJ0ZD  
LQW18AN39NG0ZD  
LQW18AN39NJ0ZD  
LQW18AN43NG0ZD  
LQW18AN43NJ0ZD  
LQW18AN47NG0ZD  
LQW18AN47NJ0ZD  
LQW18AN51NG0ZD  
LQW18AN51NJ0ZD  
LQW18AN56NG0ZD  
LQW18AN56NJ0ZD  
LQW18AN62NG0ZD  
LQW18AN62NJ0ZD  
LQW18AN68NG0ZD  
LQW18AN68NJ0ZD  
LQW18AN72NG0ZD  
LQW18AN72NJ0ZD  
LQW18AN75NG0ZD  
LQW18AN75NJ0ZD  
LQW18AN82NG0ZD  
LQW18AN82NJ0ZD  
LQW18AN91NG0ZD  
LQW18AN91NJ0ZD  
LQW18ANR10G0ZD  
LQW18ANR10J0ZD  
LQW18ANR11G0ZD  
LQW18ANR11J0ZD  
LQW18ANR12G0ZD  
LQW18ANR12J0ZD  
LQW18ANR13G0ZD  
LQW18ANR13J0ZD  
LQW18ANR15G0ZD  
LQW18ANR15J0ZD  
LQW18ANR16G0ZD  
LQW18ANR16J0ZD  
18  
20  
5500  
4900  
4600  
3800  
3700  
3300  
3200  
2900  
2800  
2700  
2600  
2500  
2400  
2300  
2200  
2100  
2050  
2000  
1900  
1800  
1700  
1600  
1450  
1400  
1350  
0.16  
0.17  
0.21  
550  
22  
500  
500  
440  
24  
27  
40  
30  
0.23  
0.26  
0.29  
420  
400  
380  
33  
36  
39  
43  
47  
51  
0.33  
0.35  
0.51  
0.38  
370  
360  
280  
340  
G:±2%  
J:±5%  
56  
38  
34  
32  
6
62  
68  
72  
0.56  
270  
75  
82  
0.60  
0.64  
0.68  
1.2  
250  
230  
220  
200  
180  
170  
160  
150  
91  
100  
110  
120  
130  
150  
160  
1.3  
1.4  
1.5  
2.1  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.3/11  
Reference Only  
Self  
DC  
Resistance  
(1)  
Inductance  
Q
(1)  
(min.)  
Resonant  
Frequency  
(1)  
Rated  
Current  
(mA)  
ESD  
Rank  
6: 25kV  
Customer  
Part Number  
MURATA  
Part Number  
(nH)  
Tolerance  
(max.)  
(MHz min.)  
LQW18ANR18G0ZD  
LQW18ANR18J0ZD  
LQW18ANR20G0ZD  
LQW18ANR20J0ZD  
LQW18ANR22G0ZD  
LQW18ANR22J0ZD  
LQW18ANR27G0ZD  
LQW18ANR27J0ZD  
LQW18ANR33G0ZD  
LQW18ANR33J0ZD  
LQW18ANR39G0ZD  
LQW18ANR39J0ZD  
LQW18ANR47G0ZD  
LQW18ANR47J0ZD  
180  
200  
220  
270  
330  
390  
470  
2.2  
2.4  
2.5  
3.4  
5.5  
6.2  
7.0  
1300  
1250  
1200  
960  
140  
120  
25  
G:±2%  
J:±5%  
110  
85  
6
30  
800  
700  
80  
75  
(1) Standard Testing Conditions  
Unless otherwise specified》  
Temperature : Ordinary Temperature / 15°C to 35°C  
Humidity : Ordinary Humidity / 25%(RH) to 85%(RH)  
In case of doubt》  
Temperature  
Humidity  
: 20°C±2°C  
: 60%(RH) to 70%(RH)  
Atmospheric Pressure : 86kPa to 106 kPa  
4. Appearance and Dimensions  
1.6±0.2  
Unit Mass (Typical value)  
0.003g  
(in mm)  
0.3±0.1  
0.3±0.1  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.4/11  
Reference Only  
5. Electrical Performance  
No.  
Item  
Specification  
Test Method  
5.1 Inductance  
Inductance shall meet item 3.  
Measuring EquipmentKEYSIGHT E4991A or equivalent  
Measuring Frequency<Inductance> 100MHz  
<Q> 250MHz / 2.2nH~ 39nH  
200MHz / 43nH~ 68nH  
150MHz / 72nH~160nH  
100MHz / 180nH~470nH  
Measuring ConditionTest signal level / about 0dBm  
Electrical length / 0.94cm  
Measuring FixtureKEYSIGHT 16193A  
Position coil under test as shown in below and contact coil  
with each terminal by adding weight.  
5.2  
Q
Q shall meet item 3.  
1mm  
6.97mm  
Measuring MethodSee the endnote.  
<Electrical PerformanceMeasuring  
Method of Inductance / Q>  
5.3 DC Resistance  
DC Resistance shall meet item 3.  
S.R.F shall meet item 3.  
Measuring EquipmentDigital multi meter  
5.4 Self Resonant  
Frequency (S.R.F)  
Measuring EquipmentKEYSIGHT N5230A or equivalent  
5.5 Rated Current  
Self temperature rise shall be  
limited to 20°C max.  
The rated current is applied.  
Inductance Changewithin ±10%  
6. Q200 Requirement  
6.1.Performance (based on Table 5 for Magnetics(Inductors / Transformer)  
AEC-Q200 Rev.D issued June 1. 2010  
AEC-Q200  
Murata Specification / Deviation  
Meet Table A after testing.  
No  
Stress  
Test Method  
3
High  
1000hours at 125 deg C  
Set for 24hours at room  
temperature, then measured.  
Temperature  
Exposure  
Table A  
Appearance  
No damage  
Inductance change  
(at 100MHz)  
Within ±5%  
4
Temperature  
Cycling  
1000cycles  
Meet Table A after testing.  
-40 deg C to +125 deg C  
Set for 24hours at room  
temperature,then  
measured.  
7
8
Biased Humidity  
Operational Life  
1000hours at 85 deg C, 85%RH Meet Table A after testing.  
unpowered.  
Apply Rated Current 125 deg C Meet Table A after testing.  
1000hours  
Set for 24hours at room  
temperature, then measured  
9
External Visual  
Visual inspection  
No abnormalities  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
AEC-Q200  
P.5/11  
Reference Only  
Murata Specification / Deviation  
No  
10 Physical Dimension Meet ITEM 4  
(Style and Dimensions)  
Stress  
Test Method  
No defects  
12 Resistance  
to Solvents  
Per  
MIL-STD-202  
Method 215  
Not Applicable  
13 Mechanical Shock Per MIL-STD-202  
Method 213  
Meet Table A after testing.  
Meet Table A after testing.  
Condition C100g’s(0.98N), 6ms  
Half sine, 12.3ft / s  
14 Vibration  
5g's(0.049N) for 20 minutes,  
12cycles each of 3  
orientations  
Test from 10-2000Hz.  
15 Resistance  
No-heating  
Pre-heating150C + / -10 deg C, 60s to 90s  
to Soldering Heat  
Solder temperature  
260C+ / -5 deg C  
Immersion time 10s  
Meet Table A after testing.  
17 ESD  
Per AEC-Q200-002  
ESD RankRefer to Item 3. Rating.  
Meet Table A after testing.  
18 Solderbility  
Per J-STD-002  
Method bNot Applicable  
95% of the terminations is to be soldered.  
(Except exposed wire)  
19 Electrical  
Measured : Inductance  
Per UL-94  
No defects  
Characterization  
20 Flammability  
21 Board Flex  
Not Applicable  
Epoxy-PCB(1.6mm)  
Deflection 2mm(min)  
Holding time 60s  
Meet Table B after testing.  
Table B  
Appearance  
No damage  
DC resistance  
change  
Within ±10%  
22 Terminal Strength  
Per AEC-Q200-006  
A force of 17.7N  
for 60s  
Murata Deviation Request10N / 5s  
No defect  
7. Specification of Packaging  
7.1 Appearance and Dimensions of paper tape (8mm-wide)  
2.0±0.05  
1.5±00.1  
4.0±0.1  
1.75±0.1  
φ
4.0±0.1  
1.0±0.05  
(in mm)  
Direction of feed  
1.1 max.  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.6/11  
Reference Only  
7.2 Specification of Taping  
(1) Packing quantity (standard quantity)  
4,000 pcs. / reel  
(2) Packing Method  
Products shall be packed in the cavity of the base tape and sealed by top tape and bottom tape.  
(3) Sprocket hole  
The sprocket holes are to the right as the tape is pulled toward the user.  
(4) Spliced point  
Base tape and Top tape has no spliced point.  
(5) Missing components number  
Missing components number within 0.1 % of the number per reel or 1 pc., whichever is greater,  
and are not continuous. The Specified quantity per reel is kept.  
7.3 Pull Strength  
Top tape  
5N min.  
Bottom tape  
7.4 Peeling off force of cover tape  
Top tape  
165 to 180 degree  
Bottom tape  
Speed of Peeling off  
300mm/min  
F
0.1N to 0.6N  
(minimum value is typical)  
Peeling off force  
Base tape  
7.5 Dimensions of Leader-tape,Trailer and Reel  
There shall be leader-tape ( cover tape and empty tape) and trailer-tape (empty tape) as follows.  
Trailer  
Leader  
160 min.  
2.0±0.5  
Label  
190 min.  
Empty tape Cover tape  
210 min.  
φ
13.0±0.2  
φ
60+1  
-
0
Direction of feed  
φ
21.0±0.8  
+1  
-0  
9.0  
(in mm)  
13.0±1.4  
+0  
φ
180  
-3  
7.6 Marking for reel  
Customer part number, MURATA part number, Inspection number(1), RoHS marking(2), Quantity etc ・・・  
1) <Expression of Inspection No.>  
OOOO ×××  
(1) (2) (3)  
(1) Factory Code  
(2) Date  
First digit  
: Year / Last digit of year  
Second digit  
: Month / Jan. to Sep. 1 to 7, Oct. to Dec. O, N, D  
Third, Fourth digit : Day  
(3) Serial No.  
2) « Expression of RoHS marking »  
ROHS – Y ()  
(1) (2)  
(1) RoHS regulation conformity  
(2) MURATA classification number  
7.7 Marking for Outside package (corrugated paper box)  
Customer name, Purchasing order number, Customer part number, MURATA part number, RoHS Marking (2) ,  
Quantity, etc ・・・  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.7/11  
Reference Only  
7.8 Specification of Outer Case  
Outer Case Dimensions (mm)  
Standard Reel Quantity  
in Outer Case (Reel)  
W
D
H
Label  
186  
186  
93  
5
H
Above Outer Case size is typical. It depends on a quantity  
of an order.  
D
W
8.  
Caution  
8.1 Caution(Rating)  
Do not exceed maximum rated current of the product. Thermal stress may be transmitted to the product and short /  
open circuit of the product or falling off the product may be occurred.  
8.2 Fail-safe  
Be sure to provide an appropriate fail-safe function on your product to prevent a second damage that may be caused  
by the abnormal function or the failure of our product.  
8.3 Limitation of Applications  
Please contact us before using our products for the applications listed below which require especially high reliability  
for the prevention of defects which might directly cause damage to the third party's life, body or property.  
(1) Aircraft equipment  
(6) Transportation equipment (trains, ships, etc.)  
(7) Traffic signal equipment  
(8) Disaster prevention / crime prevention equipment  
(2) Aerospace equipment  
(3) Undersea equipment  
(4) Power plant control equipment  
(5) Medical equipment  
(9) Data-processing equipment  
(10) Applications of similar complexity and /or reliability  
requirements to the applications listed in the above  
9. Notice  
Products can only be soldered with reflow.  
This product is designed for solder mounting.  
Please consult us in advance for applying other mounting method such as conductive adhesive.  
9.1 Land pattern designing  
Recommended land patterns for reflow soldering are as follows:  
These have been designed for Electric characteristics and solderability.  
Please follow the recommended patterns. Otherwise, their performance which includes electrical performance or  
solderability may be affected, or result to "position shift" in soldering process.  
Chip Coil  
Land  
c
Solder resist  
A
B
C
0.6 to 0.8  
1.9 to 2.0  
0.7 to 1.0  
a
(in mm)  
b
9.2 Flux, Solder  
Use rosin-based flux.  
Includes middle activator equivalent to 0.06(wt)% to 0.1(wt)% Chlorine.  
Don’t use highly acidic flux with halide content exceeding 0.2(wt)% (chlorine conversion value).  
Don’t use water-soluble flux.  
Use Sn-3.0Ag-0.5Cu solder.  
Standard thickness of solder paste : 100μm to 150μm.  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.8/11  
Reference Only  
9.3 Reflow soldering conditions  
Pre-heating should be in such a way that the temperature difference between solder and product surface is limited to  
150°C max. Cooling into solvent after soldering also should be in such a way that the temperature difference is limited  
to 100°C max.  
Insufficient pre-heating may cause cracks on the product, resulting in the deterioration of products quality.  
Standard soldering profile and the limit soldering profile is as follows.  
The excessive limit soldering conditions may cause leaching of the electrode and / or resulting in the deterioration of  
product quality.  
Reflow soldering profile  
Temp.  
(℃)  
260℃  
230℃  
Limit Profile  
245℃±3℃  
220℃  
180  
150  
Standard Profile  
30s~60s  
60s max.  
90s±30s  
Time.(s)  
Standard Profile  
Limit Profile  
Pre-heating  
150°C180°C 90s±30s  
Heating  
above 220°C30s60s  
245°C±3°C  
above 230°C60s max.  
260°C,10s  
Peak temperature  
Cycle of reflow  
2 times  
2 times  
9.4 Reworking with soldering iron  
The following conditions must be strictly followed when using a soldering iron.  
Pre-heating  
150°C,1 min  
350°C max.  
80W max.  
φ3mm max.  
3(+1,-0)s  
Tip temperature  
Soldering iron output  
Tip diameter  
Soldering time  
Time  
2 times  
NoteDo not directly touch the products with the tip of the soldering iron in order to prevent the crack on the products  
due to the thermal shock.  
9.5 Solder Volume  
Solder shall be used not to be exceed the upper limits as shown below.  
Accordingly increasing the solder volume, the mechanical stress to Chip is also increased.  
Exceeding solder volume may cause the failure of mechanical or electrical performance.  
Upper Limit  
Recommendable(t)  
1/3TtT  
T
Tthickness of product  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.9/11  
Reference Only  
9.6 Product’s location  
The following shall be considered when designing and laying out P.C.B.'s.  
(1) P.C.B. shall be designed so that products are not subject to the mechanical stress due to warping the board.  
Products direction]  
a
Products shall be located in the sideways  
direction (Length:ab) to the mechanical  
b
stress.  
Poor example  
Good example  
(2) Components location on P.C.B. separation.  
It is effective to implement the following measures, to reduce stress in separating the board.  
It is best to implement all of the following three measures; however, implement as many measures  
as possible to reduce stress.  
Contents of Measures  
Stress Level  
(1) Turn the mounting direction of the component parallel to  
the board separation surface.  
A
A
A
>
>
>
D 1  
B
(2) Add slits in the board separation part.  
(3) Keep the mounting position of the component away from  
the board separation surface.  
C
C
B
Seam  
1 A > D is valid when stress is added vertically to  
the perforation as with Hand Separation.  
If a Cutting Disc is used, stress will be diagonal to  
the PCB, therefore A > D is invalid.  
D
A
a
b
Slit  
<
Length:a b  
(3) Mounting Components Near Screw Holes  
When a component is mounted near a screw hole,  
it may be affected by the board deflection that occurs  
during the tightening of the screw. Mount the component  
in a position as far away from the screw holes as possible.  
Screw Hole  
Recommended  
9.7 Cleaning Conditions  
Products shall be cleaned on the following conditions.  
(1) Cleaning temperature shall be limited to 60°C max. (40°C max for IPA)  
(2) Ultrasonic cleaning shall comply with the following conditions with avoiding the resonance phenomenon at  
the mounted products and P.C.B.  
Power20 W / l max.  
Frequency28kHz to 40kHz  
Time5 min max.  
(3) Cleaner  
1. Alcohol type cleaner  
Isopropyl alcohol (IPA)  
2. Aqueous agent  
PINE ALPHA ST-100S  
(4) There shall be no residual flux and residual cleaner after cleaning.  
In the case of using aqueous agent, products shall be dried completely after rinse with de-ionized water in  
order to remove the cleaner.  
(5) Other cleaning  
Please contact us.  
9.8 Resin coating  
The inductance value may change due to high cure-stress of resin to be used for coating/molding products.  
An open circuit issue may occur by mechanical stress caused by the resin, amount/cured shape of resin, or operating  
condition etc. Some resin contains some impurities or chloride possible to generate chlorine by hydrolysis under some  
operating condition may cause corrosion of wire of coil, leading to open circuit.  
So, please pay your careful attention when you select resin in case of coating/molding the products with the resin.  
Prior to use the coating resin, please make sure no reliability issue is observed by evaluating products mounted on  
your board.  
9.9 Caution for use  
Sharp material such as a pair of tweezers or other material such as bristles of cleaning brush , shall not be touched  
to the winding portion to prevent the breaking of wire.  
Mechanical shock should not be applied to the products mounted on the board to prevent the breaking of the core.  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
9.10 Notice of product handling at mounting  
P.10/11  
Reference Only  
In some mounting machines,when picking up components support pin pushes up the components from the bottom of base  
tape. In this case, please remove the support pin. The support pin may damage the components and break wire.  
In rare case ,the laser recognition can not recognize this component. Please contact us when you use laser recognition.  
(There is no problem with the permeation and reflection type.)  
9.11 Handling of a substrate  
After mounting products on a substrate, do not apply any stress to the product caused by bending or twisting to the  
substrate when cropping the substrate, inserting and removing a connector from the substrate or tightening screw to  
the substrate.  
Excessive mechanical stress may cause cracking in the product.  
Bending  
Twisting  
9.12 Storage and Handing Requirements  
(1) Storage period  
Use the products within 12 months after delivered.  
Solderability should be checked if this period is exceeded.  
(2) Storage conditions  
Products should be stored in the warehouse on the following conditions.  
Temperature -10°C to 40°C  
Humidity  
15% to 85% relative humidity No rapid change on temperature and humidity  
Don't keep products in corrosive gases such as sulfur,chlorine gas or acid, or it may cause oxidization of  
electrode, resulting in poor solderability.  
Products should not be stored on bulk packaging condition to prevent the chipping of the core and the breaking  
of winding wire caused by the collision between the products.  
Products should be stored on the palette for the prevention of the influence from humidity, dust and so on.  
Products should be stored in the warehouse without heat shock, vibration, direct sunlight and so on.  
(3) Handling Condition  
Care should be taken when transporting or handling product to avoid excessive vibration or mechanical shock.  
10.  
Note  
(1)Please make sure that your product has been evaluated in view of your specifications with our product being mounted  
to your product.  
(2)You are requested not to use our product deviating from the reference specifications.  
(3)The contents of this reference specification are subject to change without advance notice.  
Please approve our product specifications or transact the approval sheet for product specifications before ordering.  
MURATA MFG.CO., LTD  
SpecNo.JELF243A-9116B-01  
P.11/11  
Reference Only  
<Electrical Performance:Measuring Method of Inductance / Q>  
(1) Residual elements and stray elements of test fixture can be described by F-parameter shown in following.  
2
1
I
I
A
C
B
D
A
C
B
D
V1  
I1  
V2  
I 2  
Zx  
Zm  
=
V
2
V1  
Test Head  
Test fixture  
Product  
(2) The impedance of chip coil Zx and measured value Zm can be described by input/output current/voltage.  
V1  
I 1  
V2  
I 2  
Zm=  
Zx=  
(3) Thus,the relation between Zx and Zm is following;  
Zm-β  
where, α= D / A =1  
Zx= α  
1-ZmΓ  
β= B / D =Zsm-(1-Yom Zsm)Zss  
Γ= C / A =Yom  
Zsmmeasured impedance of short chip  
Zss residual impedance of short chip (0.771nH)  
Yommeasured admittance when opening the fixture  
(4) Lx and Qx shall be calculated with the following equation.  
Im(Zx)  
Im(Zx)  
Re(Zx)  
LxInductance of chip coil  
QxQ of chip coil  
Lx=  
,
Qx =  
2πf  
f Measuring frequency  
MURATA MFG.CO., LTD  

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