二极体测试简介-CARL

1、new products2/21/2022.1二極體測試簡介二極體測試簡介J.F.YANG DATE: MAY/24Next2/21/20222討論主題討論主題物理特性簡介應用簡介介紹各項參數測試方法PrevNext2/21/20223PN JUNCTION WITH NO EXTERNAL BIAS物理特性物理特性-無偏壓無偏壓Back2/21/20224PN JUNCTION WITH REVERSE EXTERNAL BIAS物理特性物理特性-逆向偏壓逆向偏壓BackPrev2/21/20225PN JUNCTION WITH FORWARD EXTERNAL BIAS物理特性物理特性-

2、順向偏壓順向偏壓BackPrev2/21/20226應用簡介應用簡介100V Schottky Applications高頻開關式電源供應器Free wheeling diodes極性保護裝置電池充電器監視器AC/DC 轉換器DC/DC 轉換器Back2/21/20227電壓穩定器電壓基準器應用簡介應用簡介Zener Diode BackPrev2/21/20228應用簡介應用簡介TVSDC電源供應保護器AC電源供應保護器電子線路過電壓保護EMI限制繼電器及接觸器反電動勢保護基本應用線路GoBackPrev2/21/20229參數項目參數項目(1)RC TEST CLIP CONTACT CH

3、ECKSOP D.U.T. OPEN/SHORT POLARITYIR REVERSE LEAKAGE CURRENTVF FORWARD VOLTAGEVR REVERSE VOLTAGEDVF 熱效應順向電壓差測試Back2/21/202210參數項目參數項目(2)VC CLAMPING VOLTAGE，TVS PRODUCTTRR RVERSE RECOVERY TIMEVFD SKY SURGE SURGE CURRENTZZT/ZZK DYNAMIC IMPEDANCEPrev2/21/202211RC測試方法 : Kelvin Contact I=500maR=V/IPW=4+0.

4、3+4 msCRACRKBack2/21/202212SOP測試方法 : 類似VF測試方法V3.00V = OpenPW=6.3+0.3+6.3 msIF=100maVBack2/21/202213IR逆向漏電流測試SOP 判定後,從陽極加上負電壓少數電子從陰極流向陽極PW=4+IRPW+4 ms+HVIR-HVBack2/21/202214IR CURVE -V-I定電壓測試逆向漏電流Prev2/21/202215VF順向電壓測試PW=4+VFPW+4 msIFVFBack2/21/202216VF CURVE +I+VPrev2/21/202217VR逆向崩潰電壓測試從陽極加上負定電流,電

5、流值達到設定值時記錄二極體兩端電壓PW=4+VRPW+4 ms+HVIZ-HVVRBack2/21/202218VR CURVE -V-I定電流測試逆向崩潰電壓Prev2/21/202219DVF熱效應順向電壓差測試IF 大電流,加熱用 , 10AIM 小電流 測量VF , 10mAPW=4+VFPW+4 msIFVFIMBack2/21/202220DVF TIMING IM IF(Heating)IMPW : IM=2ms IF=75msDVF=/VF1-VF2/400usRead VF21.0msRead VF1Prev2/21/202221VCCLAMPING VOLTAGE從陽極加上

6、負定電流,電流值達到設定值時記錄二極體兩端電壓PW=4+VCPW+4 ms+HVIZ-HVVRBack2/21/202222VC CURVE (1)SQUARE WAVEPW : IP=0.3msVC = V PeakV CURVEIP CURVEPrevNext400W,600W,1500W,500W0.55j , 0.80j , 2.10j , 7.00jEnergy=KVcIt1.0 mSSQUARE WAVE :K=12/21/202223VC CURVE (2)EXP. WAVE (10 x1000)PW : DEPENDING ON WAVEVC = V PeakIP CURVE1

7、0us IP1000usPrevEnergy=KVcItExp. Wave: K=1.42/21/202224TRR RG1 CURCUIT REVERSE RECOVERY TIMEIF=500maIR=1.00AIrr=0.25IRBack2/21/202225TRR WAVE FORM REVERSE RECOVERY TIMEIRTRRIrr=0.25 IR0VPrev2/21/202226VFD WAVE FORM VIVFD 效應曲線正常VF曲線Back2/21/202227VFD TEST TIMING 100us400usVFD14ms4ms600usVFD2VFD=/VFD1

8、-VFD2/Prev2/21/202228SKY SURGE從陽極加上負定電流,電流值達到設定值時記錄二極體兩端電壓+HVIZ-HVVRBack2/21/202229Sky SurgeTEST TIMING1000us2us10 TIMESPrev2/21/202230ZZT/ZZK+HVIZ+Iac-HVVZBack1. 崩潰動態阻抗崩潰動態阻抗 (ZZT) 測試測試:在測試的IZ電流上再疊加一AC電流 (1KHz, IAC(RMS)=10% x IZ) 計算出動態阻抗ZZT.1. 2. 崩潰轉折點動態阻抗崩潰轉折點動態阻抗 (ZZK) 測試測試:在所設定IZK電流條件下,疊加一AC電流 (

9、1KHz, IAC(RMS)=10% x IZK) 計算出動態阻抗ZZK.2/21/202231ZZk,ZZtCURVE Prev-V-IIz+iacIz+iacZZKZZt0.250mA+0.025mADCAC 1KHz2/21/202232I ac 1kHzI dcIZ+I acD.U.T.VZ+VacLow PassFilterI acRectifyHigh PassFilterVac (RMS)V ac I ac=ZZkTEST FLOWPrev2/21/202233DATA SHEET 2/21/202234WEI-MIN TESTERBF610C BS610 VF600C FR600 TVS600C