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LMZ23610: LMZ23610

CHIKWANG SONG
Prodigy 40 points
Part Number: LMZ23610

Our customerhad drying process due to the above table but the LMZ23610 had big quality problem .

LMZ23610 was showned with  milky leakeage as like little humid from the juction of moulding body.

Some LMZ23610 did not run  in the PCB sddrmbly after SMT process .

We bought total 750pcs of LMZ23610 on Feb. 2017 from you.

Could youplease let me get your Opinion on th above issue and how to do ?

Thanks

 

  • 0
    TI__Mastermind 18940 points

    Hello Chikwang,

    I am not sure I understand the question.

    Do you have a picture you can share? 

    The table you mention did not appear on your post. 

    Regards, 

    Denislav

  • 0 in reply to Denislav Petkov
    Prodigy 40 points
    Dear Denislav,
    Thank you for your prompt response . What I mentioned concerning about the Drying Processing is suugested by your company acrticles .
    " SNAA214B LMZ1 and LMZ2 Power Module Designe Summary " Texas Instruments Page4 1/19/2016 "
    Now Our customer is getting angry because TI does not make any feedback from this quality issue and something wrong.
    including any TI people .

    Please let me get how to solve this quality issue and answer on Milky leakage after Drying Process due to your summary.

    Thanks and best regards,
  • 0 in reply to CHIKWANG SONG
    TI__Mastermind 18940 points
    Hello Chikwang,

    Page 4 of the application note you mention above describes the bake requirements for parts that did not get mounted within the floor life duration. If the floor life time (device out of the bag) is exceeded, then a bake is required to get any excess moisture out of the package prior to soldering.

    I am not aware of any "milky" leakage during this baking process.

    Could you please attach a picture of what you are observing?

    Regards,
    Denislav
  • 0 in reply to Denislav Petkov
    TI__Mastermind 18940 points
    Hello Chikwang,

    I contacted some of our packaging folks.

    Here are a couple of requests from them:

    1. Can you help to get a closer pictures of the residue?

    Without analysis on the actual units, it is very difficult to make any conclusion.

    2. Do you think we can have some sample back for analysis? If yes, I can provide an address.

    Regards,
    Denislav
  • 0
    Prodigy 40 points
    Dear Akshay,

    ​

    I would like to know if there is any discussion about our answer.
    Please give us a quick opinion on that.
    So much time has passed so far
    We are waiting too much now



    Thanks & Regards,

    CHI KWANG SONG

    Email: bdcksong@naver.com

    Phone: 82-2-858-2146

    Mobile:82-10-6277-2148











    -----Original Message-----
    From: "송치광"<bdcksong@naver.com>
    To: "Mehta,Akshay"<Akshay.Mehta@ti.com>; "Chow,Wing Hong"<w-chow@ti.com>;
    Cc: "Tran,Roger"<Roger.Tran@ti.com>; "tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers)"<tiem_cqe@list.ti.com>; "Mostapah,Nor Adilah"<Nor.Adilah.Binti.Mostapah@ti.com>; "Tan,Tricia"<Tricia.Tan@ti.com>; "Petkov,Denislav"<Denislav.Petkov@ti.com>;
    Sent: 2017-06-21 (수) 21:18:38
    Subject: RE: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD





    Dear Akshay,
    OK, Let me talk about the investigating process of our customer side as folllows.



    Question 1: “Is the defect for the range : 0~900[㏀] / 2[uF] over) isn’t it?”

    Answer: Are you seeing Vout to GND shorts (0 ohms) on the modules? Or are you seeing open (900kohms)? If the VOUT to GND are shorted then there is a problem. Do the devices that have “leakage” have VOUT to GND short (0 ohms)? You said you have 380 pieces with electrical failure. What test have you run to deduce electrical failure? Have they exhibited VOUT to GND short?





    Answer - Following figure is measured value for 3 point of LMZ23610 under assmbling SMT Procssing with other components when we found some electrical failure.
    Incase of Resistance가 4[Ω] , 6.9[Ω] / Capacitance, our equipment cannot display any value ( maybe infinite value ).
    Therefore, we had to check the capacitance value and resistance value of other pin of LMZ23610 to find the good product among them.
    As we had very stable value of each pin for LMZ 23610 when we bougt the right goods , but this case ( the goods 750pcs we bougt from E2E ) has not been shown stable value as follow.
    it is very big difference from mean value.











    Capacitance(uF) Resisance Resisance Serial
    Vout Enable(4) SS(8) 　
    1802 24.8M 4ohm 48
    1850 1.2M 280Kohm 92
    1490 1.2M 163K 83
    OL 28M 4.8M 309
    OL 25.6M 5M 456
    1480 1.2M 5M 173
    1779 6.9 463K 143





    Questions 2: “. If yes, what is the reason and is problem ?”

    Answer: I am not sure what defects there are. If you are seeing VOUT to GND shorts, do you see them before you solder these devices on the boards? Or do you see them after you solder them on the boards? Or are you seeing them on loose units? If there are no shorts between VOUT and GND do you see some other abnormality?



    Answer - we have used 3 kinds of measureing condition as follows
    1) measured before SMT processing
    2) measured after SMT processing
    3) measured by loading power .
    then, We had found same value from the above three condition .





    Question 3: “If your baking process condition 125 degree / 48 hours or more higher temperature , Does LMZ23610 has thermal shock or internal demage? (Peak Reflow Temperature 245℃)”
    Answer: There shouldn’t be any damage resulting from the baking process.



    Opinion on this issue .

    I'm sure there is relative any thing between your Baking Process and this 750 pcs of TI LMZ23610 delivered on Feb.
    because there was no problem on 28 pcs evaluation sample when this development engineering sage. ( Baking 70 degree under 4hours ).
    But for Mass production stage in this year , we have changed T1 Baking condition ( 125 degree under 48 hours , then, there have started finding mass defects from our line process.
    Then, we have started to sort " good "or " defect" under of above three kinds of measuring investigating by us.
    So, we have found many defects from line process and replace them by New LMZ23610 from other supply Chain source . No more defect is there.

    For your reference , the below is the value of New LMZ23610 from other Supply Chain Source





















    SMT START 10K~M UNIT (17 years product, 125degree, 6hours) note
    Capacitance(uF) Resisance Resisance Resisance Resisance 125degree 24hours New 17 years product,
    PCB Board 50PCS SerialNuber Vout Enable(4) FB(7) SS(8) SH(9)
    131 1531 27.8M 1.47K 4.9M 8.7M
    132 1558 28.7M 1.47K 5.1M 8.7M
    133 1575 29.4M 1.47K 5.2M 8.7M
    134 1722 30.1M 1.47K 5M 8.7M
    135 1560 30.9M 1.47K 5.2M 8.7M
    136 1542 28.4M 1.47K 5.2M 8.7M
    137 1595 30M 1.47K 5.1M 8.7M
    138 1473 31.5M 1.47K 5.1M 8.7M
    139 1630 27.4M 1.47K 5M 8.7M
    140 1591 30.9M 1.47K 5.1M 8.7M
    141 1591 30.7M 1.47K 5.2M 8.7M
    142 1605 32M 1.47K 5M 8.74M
    143 1566 28.2M 1.47K 4.9M 8.7M
    144 1547 30.5M 1.47K 5.2M 8.7M
    145 1538 28.4M 1.47K 4.9M 8.7M
    146 1538 32M 1.47K 5.1M 8.7M
    147 4504 2.706M 1.47K 2.5M 2.9M
    148 1509 29.5M 1.47K 5.2M 8.8M
    149 1590 31.1M 1.47K 5.3M 8.8M
    150 1550 28.1M 1.47K 5.1M 8.8M
    151 1539 29.8M 1.47K 5.2M 8.8M
    152 1627 31M 1.47K 5.4M 8.8M
    153 1557 31.2M 1.47K 5.2M 8.8M
    154 1579 28.8M 1.47K 5.1M 8.8M
    155 1594 29.2M 1.47K 5.1M 8.8M
    156 1543 34.03M 1.47K 5.1M 8.8M
    157 1592 27M 1.47K 5.3M 8.8M
    158 1590 29M 1.47K 5.2M 8.8M
    159 1573 29.4M 1.47K 5M 8.8M
    160 1584 32M 1.47K 5.3M 8.8M
    161 1579 31.9M 1.47K 5.3M 8.9M
    162 1573 30.5M 1.47K 5.1M 8.9M
    163 1531 29.9M 1.47K 5.1M 8.8M
    164 1584 33.5M 1.48K 5M 8.9M
    165 1817 31.7M 1.47K 5.2M 8.8M
    166 1533 31.5M 1.47K 5.4M 8.8M
    167 1580 28.7M 1.47K 5.4M 8.8M
    168 1631 29.3M 1.47K 5.4M 8.9M
    169 1503 27.8M 1.47K 5.2M 8.9M
    170 1606 29.6M 1.47K 5.1M 8.9M
    171 1559 29.3M 1.47K 5M 8.9M
    172 1613 30.9M 1.47K 5.5M 8.9M
    173 1602 29.7M 1.47K 5.4M 8.9M
    174 1528 31M 1.47K 5.5M 8.9M
    175 1529 25.9M 1.47K 5.1M 8.9M
    176 1613 32.7M 1.47K 5.5M 8.9M
    177 1607 31.1M 1.47K 5.4M 8.9M
    178 1515 33.7M 1.47K 5.2M 8.9M
    179 1616 27.9M 1.47K 5.2M 8.9M
    180 1545 32.1M 1.47K 5.2M 8.9M



    Thanks & Regards,

    CHI KWANG SONG

    Email: bdcksong@naver.com

    Phone: 82-2-858-2146

    Mobile:82-10-6277-2148

    -----Original Message-----
    From: "Mehta, Akshay"<Akshay.Mehta@ti.com>
    To: "송치광"<bdcksong@naver.com>; "Chow, Wing Hong"<w-chow@ti.com>;
    Cc: "Tran, Roger"<Roger.Tran@ti.com>; "tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers)"<tiem_cqe@list.ti.com>; "Mostapah, Nor Adilah"<Nor.Adilah.Binti.Mostapah@ti.com>; "Tan, Tricia"<Tricia.Tan@ti.com>; "Petkov, Denislav"<Denislav.Petkov@ti.com>;
    Sent: 2017-06-21 (수) 03:47:42
    Subject: RE: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD



    Hello,

    I apologize, but I am not clear on what the questions are. Here is what I understand from the presentation sent previously.



    Question 1: “Is the defect for the range : 0~900[㏀] / 2[uF] over) isn’t it?”

    Answer: Are you seeing Vout to GND shorts (0 ohms) on the modules? Or are you seeing open (900kohms)? If the VOUT to GND are shorted then there is a problem. Do the devices that have “leakage” have VOUT to GND short (0 ohms)? You said you have 380 pieces with electrical failure. What test have you run to deduce electrical failure? Have they exhibited VOUT to GND short?



    Questions 2: “. If yes, what is the reason and is problem ?”

    Answer: I am not sure what defects there are. If you are seeing VOUT to GND shorts, do you see them before you solder these devices on the boards? Or do you see them after you solder them on the boards? Or are you seeing them on loose units? If there are no shorts between VOUT and GND do you see some other abnormality?



    Question 3: “If your baking process condition 125 degree / 48 hours or more higher temperature , Does LMZ23610 has thermal shock or internal demage? (Peak Reflow Temperature 245℃)”

    Answer: There shouldn’t be any damage resulting from the baking process.





    Regards,

    Akshay





    From: 송치광 [mailto:bdcksong@naver.com]
    Sent: Tuesday, June 20, 2017 6:56 AM
    To: Mehta, Akshay
    Cc: Chow, Wing Hong; Tran, Roger; tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers); Mostapah, Nor Adilah; Tan, Tricia
    Subject: FW: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD




    Hi Akshay Mehta




    To solve our problem

    Quick answers to questions from Wing Hong Chow

    We want active measures for our needs.



    I think there is a problem in the field



    Please cooperate.



    " See the below"




    Hi Denislav,



    Song is sending some units back to TIEM, I believe this shipment without TI Commercial Invoice and also who should this shipment ATTN to,

    I am not sure what is the issue behind and why this straight come back to TIEM, is this related to customer complaint from Innowireless?



    Please help Song and if related to customer complaint please also noticed and involve RCQE, go through TI trouble report and procedure before get back to Factory.



    Let me know if I am wrong also please brief this event. Thanks.




    Thanks & Regards,

    Wing Hong Chow

    Email: w-chow@ti.com

    Phone: +6016-5680639/ Ext.: 5383

    IP Phone: 479-5976




    Purchasing Site

    http://e2e.ti.com./


    PO No.

    ORDER NUMBER : 1371496


    Part No.

    [Part# or Description: LMZ23610TZ/NOPB


    Ship Date:

    02/22/2017




    Sent: 2017-02-23 (목) 04:09:31
    Subject: TI store: Your Order Items have been Shipped.






    Shipment Notification





    Texas Instruments






    Dear CHIKWANG SONG :

    Thank you again for shopping at the TI Store. We have delivered one or more of your ordered items.

    For physical shipments, you can find the carrier name and tracking number of your item(s) below. Please note that orders with multiple items may be shipped in separate boxes at no additional shipping charge to you. If you have any remaining items, we will send you another confirmation e-mail when those items are shipped.

    Thank You.
    TI Store




    ORDER SUMMARY



    Order Number:

    1371496


    Ordered on:

    2/22/2017 3:04:22 AM


    Ordered by:

    CHIKWANG SONG


    Order Total:

    12682.50


    Order Status:

    View Online







    Billing Address:


    HIGH TECHNOLOGY CO.,LTD


    CHIKWANG SONG


    #505 SEOBUSAET-GIL 534 GEUMCHEON-GU



    KR










    SHIPMENT INFORMATION



    Shipment 1 of 1


    Ship To:

    Shipment Method:


    HIGH TECHNOLOGY CO.,LTD


    CHIKWANG SONG

    Ship Date: 02/22/2017


    #505 SEOBUSAET-GIL 534 GEUMCHEON-GU

    Carrier: FEDX


    Tracking Number:


    KR

    709551104054 *

    *This tracking number may reflect shipping through our US or European import hub (see Tracking Number Detailsbelow for additional information).





    ORDER CONTENTS





    Qty

    SKU

    Description

    Price


    750

    LMZ23610TZ/NOPB

    LMZ23610TZ/NOPB-10A SIMPLE SWITCHER® Power Module with 36V Maximum Input Voltage and Current Sharing

    12682.50







    ORDER TOTALS



    Subtotal:

    12682.50


    Tax:

    0.00


    Shipping and Handling:

    0.00




    Discounts:

    0.00


    Coupons:

    0.00


    Total:

    12682.50




    Thank you for shopping with us!


    abstract wave pattern






    Thanks & Regards,

    CHI KWANG SONG

    Email: bdcksong@naver.com

    Phone: 82-2-858-2146

    Mobile:82-10-6277-2148

    -----Original Message-----
    From: "Chow, Wing Hong"<w-chow@ti.com>
    To: "Tran, Roger"<Roger.Tran@ti.com>; "Petkov, Denislav"<Denislav.Petkov@ti.com>; "bdcksong@naver.com"<bdcksong@naver.com>;
    Cc: "tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers)"<tiem_cqe@list.ti.com>; "Mostapah, Nor Adilah"<Nor.Adilah.Binti.Mostapah@ti.com>; "Tan, Tricia"<Tricia.Tan@ti.com>;
    Sent: 2017-06-16 (금) 12:56:01
    Subject: FW: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD



    Hi Denislav,



    Song is sending some units back to TIEM, I believe this shipment without TI Commercial Invoice and also who should this shipment ATTN to,

    I am not sure what is the issue behind and why this straight come back to TIEM, is this related to customer complaint from Innowireless?



    Please help Song and if related to customer complaint please also noticed and involve RCQE, go through TI trouble report and procedure before get back to Factory.



    Let me know if I am wrong also please brief this event. Thanks.




    Thanks & Regards,

    Wing Hong Chow

    Email: w-chow@ti.com

    Phone: +6016-5680639/ Ext.: 5383

    IP Phone: 479-5976







    From: 송치광 [mailto:bdcksong@naver.com]
    Sent: Friday, June 16, 2017 11:40 AM
    To: Chow, Wing Hong
    Cc: tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers); Mostapah, Nor Adilah; Tan, Tricia
    Subject: FW: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD








    HI Wing Hong Chow



    Thank you for your feedback .

    I regret to inform you that residue is mot likely solder you said.

    I'd like to inform you that I already sent the some sample for your TI investigation in Malaysia as your clolleague's suggestion.

    the EMS No. is ES 178 933 643 KR

    now the goods is one customs's clerence and your Mayasia collegue will get them for investigating.

    Please could you make duble checking with Petkov and Malaysia Collegue's investigation Center for them.



    By the way, I'm saying to you due to the below against your question .

    1. Is there any Electrical failure after SMT processing /

    >>>> Yes, we found 380pcs .

    2, Is there any malfunctioning in the filed ?

    >>>> the finished producct of our customer shipped to End customer as filed , So, I don't have get any number malfnctyiong q'ty but I'm very scared .

    after gettingsome report from our customer, I will let you know.



    Thanks and best regards,



    -----Original Message-----
    From: "Petkov, Denislav"<Denislav.Petkov@ti.com>
    To: "송치광"<bdcksong@naver.com>;
    Cc: "Tran, Roger"<Roger.Tran@ti.com>;
    Sent: 2017-06-07 (수) 00:55:23
    Subject: RE: LMZ23610 issue



    Hello Song,



    Here is the address where you can ship units for analysis. Please include any relevant documentation you have.



    Texas Instruments Electronic Melaka.

    Batu Berendam Free Trade Zone

    75350 Melaka, Malaysia.



    ATTN: Nor Adilah Binti Mostapah

    Phone: +606-2515-607



    Question: Did you have any electrical issues with these parts?



    Regards,

    Denislav



    -----Original Message-----
    From: "Chow, Wing Hong"<w-chow@ti.com>
    To: "bdcksong@naver.com"<bdcksong@naver.com>;
    Cc: "tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers)"<tiem_cqe@list.ti.com>; "Mostapah, Nor Adilah"<Nor.Adilah.Binti.Mostapah@ti.com>; "Tan, Tricia"<Tricia.Tan@ti.com>;
    Sent: 2017-06-16 (금) 11:56:42
    Subject: Shipment



    Hi Song,



    As per discussed, please provide your shipping details, we will use your info to approach our receiving to confirm if they reject any shipments from you.

    Just to add our shipping details here in case you need:



    ATTN: Nor Adilah Binti Mostapah

    Phone: +606-2515-607

    Texas Instruments Electronic Melaka.

    Batu Berendam Free Trade Zone

    75350 Melaka, Malaysia.





    Thanks & Regards,

    Wing Hong Chow

    Email: w-chow@ti.com

    Phone: +6016-5680639/ Ext.: 5383

    IP Phone: 479-5976
  • 0 in reply to CHIKWANG SONG
    Prodigy 40 points
    Dear Akshay,





    Could you please pay attention to the outstanding quality issue LMZ2360?
    because our customer has got crazy disaster situation now.

    I'm looking forward to hearing the comment of yours as soon as possible.




    ​ Thanks and best regards,






    CHI KWANG SONG
    Email: bdcksong@naver.com
    Phone: 82-2-858-2146
    Mobile:82-10-6277-2148



    -----Original Message-----
    From: "Mehta, Akshay"<Akshay.Mehta@ti.com>
    To: "송치광"<bdcksong@naver.com>; "Chow, Wing Hong"<w-chow@ti.com>;
    Cc: "Tran, Roger"<Roger.Tran@ti.com>; "tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers)"<tiem_cqe@list.ti.com>; "Mostapah, Nor Adilah"<Nor.Adilah.Binti.Mostapah@ti.com>; "Tan, Tricia"<Tricia.Tan@ti.com>; "Petkov, Denislav"<Denislav.Petkov@ti.com>;
    Sent: 2017-06-29 (목) 01:56:05
    Subject: RE: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD



    Hello,

    I apologize for the delay, but we are looking in the back end at your issue.



    Regards,

    Akshay





    From: 송치광 [mailto:bdcksong@naver.com]
    Sent: Tuesday, June 27, 2017 1:03 AM
    To: Mehta, Akshay; Chow, Wing Hong
    Cc: Tran, Roger; tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers); Mostapah, Nor Adilah; Tan, Tricia; Petkov, Denislav
    Subject: RE: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD










    Dear Akshay,

    ​

    I would like to know if there is any discussion about our answer.
    Please give us a quick opinion on that.
    So much time has passed so far
    We are waiting too much now



    Thanks & Regards,

    CHI KWANG SONG

    Email: bdcksong@naver.com

    Phone: 82-2-858-2146

    Mobile:82-10-6277-2148











    -----Original Message-----
    From: "송치광"<bdcksong@naver.com>
    To: "Mehta,Akshay"<Akshay.Mehta@ti.com>; "Chow,Wing Hong"<w-chow@ti.com>;
    Cc: "Tran,Roger"<Roger.Tran@ti.com>; "tiem_cqe@list.ti.com - Mail list for TIEM CQE (May contain non-TIers)"<tiem_cqe@list.ti.com>; "Mostapah,Nor Adilah"<Nor.Adilah.Binti.Mostapah@ti.com>; "Tan,Tricia"<Tricia.Tan@ti.com>; "Petkov,Denislav"<Denislav.Petkov@ti.com>;
    Sent: 2017-06-21 (수) 21:18:38
    Subject: RE: LMZ23610 issue HIGHTECHNOLOGY CO ., LTD




    Dear Akshay,


    OK, Let me talk about the investigating process of our customer side as folllows.




    Question 1: “Is the defect for the range : 0~900[㏀] / 2[uF] over) isn’t it?”

    Answer: Are you seeing Vout to GND shorts (0 ohms) on the modules? Or are you seeing open (900kohms)? If the VOUT to GND are shorted then there is a problem. Do the devices that have “leakage” have VOUT to GND short (0 ohms)? You said you have 380 pieces with electrical failure. What test have you run to deduce electrical failure? Have they exhibited VOUT to GND short?




    Answer - Following figure is measured value for 3 point of LMZ23610 under assmbling SMT Procssing with other components when we found some electrical failure.


    Incase of Resistance가 4[Ω] , 6.9[Ω] / Capacitance, our equipment cannot display any value ( maybe infinite value ).


    Therefore, we had to check the capacitance value and resistance value of other pin of LMZ23610 to find the good product among them.


    As we had very stable value of each pin for LMZ 23610 when we bougt the right goods , but this case ( the goods 750pcs we bougt from E2E ) has not been shown stable value as follow.


    it is very big difference from mean value.





    Capacitance(uF)

    Resisance

    Resisance

    Serial


    Vout

    Enable(4)

    SS(8)


    1802

    24.8M

    4ohm

    48


    1850

    1.2M

    280Kohm

    92


    1490

    1.2M

    163K

    83


    OL

    28M

    4.8M

    309


    OL

    25.6M

    5M

    456


    1480

    1.2M

    5M

    173


    1779

    6.9

    463K

    143





    Questions 2: “. If yes, what is the reason and is problem ?”


    Answer: I am not sure what defects there are. If you are seeing VOUT to GND shorts, do you see them before you solder these devices on the boards? Or do you see them after you solder them on the boards? Or are you seeing them on loose units? If there are no shorts between VOUT and GND do you see some other abnormality?




    Answer - we have used 3 kinds of measureing condition as follows


    1) measured before SMT processing


    2) measured after SMT processing


    3) measured by loading power .


    then, We had found same value from the above three condition .





    Question 3: “If your baking process condition 125 degree / 48 hours or more higher temperature , Does LMZ23610 has thermal shock or internal demage? (Peak Reflow Temperature 245℃)”


    Answer: There shouldn’t be any damage resulting from the baking process.




    Opinion on this issue .


    I'm sure there is relative any thing between your Baking Process and this 750 pcs of TI LMZ23610 delivered on Feb.


    because there was no problem on 28 pcs evaluation sample when this development engineering sage. ( Baking 70 degree under 4hours ).


    But for Mass production stage in this year , we have changed T1 Baking condition ( 125 degree under 48 hours , then, there have started finding mass defects from our line process.


    Then, we have started to sort " good "or " defect" under of above three kinds of measuring investigating by us.


    So, we have found many defects from line process and replace them by New LMZ23610 from other supply Chain source . No more defect is there.



    For your reference , the below is the value of New LMZ23610 from other Supply Chain Source





    SMT START

    10K~M UNIT

    (17 years product, 125degree, 6hours)

    note


    Capacitance(uF)

    Resisance

    Resisance

    Resisance

    Resisance

    125degree 24hours New 17 years product,


    PCB Board 50PCS

    SerialNuber

    Vout

    Enable(4)

    FB(7)

    SS(8)

    SH(9)


    131

    1531

    27.8M

    1.47K

    4.9M

    8.7M


    132

    1558

    28.7M

    1.47K

    5.1M

    8.7M


    133

    1575

    29.4M

    1.47K

    5.2M

    8.7M


    134

    1722

    30.1M

    1.47K

    5M

    8.7M


    135

    1560

    30.9M

    1.47K

    5.2M

    8.7M


    136

    1542

    28.4M

    1.47K

    5.2M

    8.7M


    137

    1595

    30M

    1.47K

    5.1M

    8.7M


    138

    1473

    31.5M

    1.47K

    5.1M

    8.7M


    139

    1630

    27.4M

    1.47K

    5M

    8.7M


    140

    1591

    30.9M

    1.47K

    5.1M

    8.7M


    141

    1591

    30.7M

    1.47K

    5.2M

    8.7M


    142

    1605

    32M

    1.47K

    5M

    8.74M


    143

    1566

    28.2M

    1.47K

    4.9M

    8.7M


    144

    1547

    30.5M

    1.47K

    5.2M

    8.7M


    145

    1538

    28.4M

    1.47K

    4.9M

    8.7M


    146

    1538

    32M

    1.47K

    5.1M

    8.7M


    147

    4504

    2.706M

    1.47K

    2.5M

    2.9M


    148

    1509

    29.5M

    1.47K

    5.2M

    8.8M


    149

    1590

    31.1M

    1.47K

    5.3M

    8.8M


    150

    1550

    28.1M

    1.47K

    5.1M

    8.8M


    151

    1539

    29.8M

    1.47K

    5.2M

    8.8M


    152

    1627

    31M

    1.47K

    5.4M

    8.8M


    153

    1557

    31.2M

    1.47K

    5.2M

    8.8M


    154

    1579

    28.8M

    1.47K

    5.1M

    8.8M


    155

    1594

    29.2M

    1.47K

    5.1M

    8.8M


    156

    1543

    34.03M

    1.47K

    5.1M

    8.8M


    157

    1592

    27M

    1.47K

    5.3M

    8.8M


    158

    1590

    29M

    1.47K

    5.2M

    8.8M


    159

    1573

    29.4M

    1.47K

    5M

    8.8M


    160

    1584

    32M

    1.47K

    5.3M

    8.8M


    161

    1579

    31.9M

    1.47K

    5.3M

    8.9M


    162

    1573

    30.5M

    1.47K

    5.1M

    8.9M


    163

    1531

    29.9M

    1.47K

    5.1M

    8.8M


    164

    1584

    33.5M

    1.48K

    5M

    8.9M


    165

    1817

    31.7M

    1.47K

    5.2M

    8.8M


    166

    1533

    31.5M

    1.47K

    5.4M

    8.8M


    167

    1580

    28.7M

    1.47K

    5.4M

    8.8M


    168

    1631

    29.3M

    1.47K

    5.4M

    8.9M


    169

    1503

    27.8M

    1.47K

    5.2M

    8.9M


    170

    1606

    29.6M

    1.47K

    5.1M

    8.9M


    171

    1559

    29.3M

    1.47K

    5M

    8.9M


    172

    1613

    30.9M

    1.47K

    5.5M

    8.9M


    173

    1602

    29.7M

    1.47K

    5.4M

    8.9M


    174

    1528

    31M

    1.47K

    5.5M

    8.9M


    175

    1529

    25.9M

    1.47K

    5.1M

    8.9M


    176

    1613

    32.7M

    1.47K

    5.5M

    8.9M


    177

    1607

    31.1M

    1.47K

    5.4M

    8.9M


    178

    1515

    33.7M

    1.47K

    5.2M

    8.9M


    179

    1616

    27.9M

    1.47K

    5.2M

    8.9M


    180

    1545

    32.1M

    1.47K

    5.2M

    8.9M