6. Test and Measurement Procedures
6.1 Test Conditions
Unless otherwise specified, the standard atmospheric conditions for measurement/test as:
a. Ambient Temperature: 20±15℃
b. Relative Humidity: 65%±20%
c. Air Pressure: 86 KPa to 106 KPa
If any doubt on the results, measurements/tests should be made within the following limits:
a. Ambient Temperature: 20±2℃
b. Relative Humidity: 65%±5%
c. Air Pressure: 86KPa to 106 KPa
6.2 Visual Examination
a. Inspection Equipment: 30X magnifier
6.3 Electrical Test
6.3.1 DC Resistance (DCR)
a. Refer to Item 5.
b. Test equipment: HIOKI3540 or equivalent.
6.3.2 Inductance (L)
a. Refer to Item 5.
b. Test equipment: Agilent4287A+Agilent16197A or equivalent.
c. Test signal: -13dBm or 10mA
d. Test frequency refers to Item 3.
6.3.3 Q Factor (Q)
a. Refer to Item 5.
b. Test equipment: Agilent4287A+Agilent16197A or equivalent.
c. Test signal: -13dBm or 10mA
d. Test frequency refers to Item 5.
6.3.4 Self-Resonant Frequency (SRF)
a. Refer to Item 5.
b. Test equipment: Agilent4991B+Agilent16197A and HP 8753E or equivalent.
c. Test signal: -20dBm or 50mV
6.3.5 Saturation Current (IDC)
a. Refer to Item 5.
b. Test equipment : Electric Power, Electric current meter, Agilent4991A+Agilent16197A or equivalent.
c. Measurement method :
1. Set test current to be 0 mA.
2. Measure initial chip inductance.
3. Gradually increase voltage and measure chip inductance for corresponding current.
d. Definition of Saturation Current (IDC): IDC is direct electric current as chip inductance drop just 10% from its value
without current.
6.3.6 Rated Current (Irms)
e. Refer to Item 5.
f.
Test equipment (see Fig.6.3.4-1): Electric Power, Electric current meter, Thermometer.
g. Measurement method (see Fig. 6.3.4-1):
1. Set test current to be 0 mA.
2. Measure initial temperature of chip surface.
3. Gradually increase voltage and measure chip temperature for corresponding current.
h. Definition of Rated Current (Irms): Irms is direct electric current as chip surface temperature rose just 15℃ against
chip initial surface temperature (Ta) (see Fig. 6.3.4-2).
Ta+15
Ta
0
Rated current
Irms (mA)
Fig. 6.3.4-2
Fig. 6.3.4-1
Specifications subject to change without notice. Please check our website for latest informations.
WWW.CJIANG.TW