#protection scheme

[tearsofrefugees]

Video. Any EU change to Ukrainian protection must be gradual - UNHCR deputy

Video. Kelly Clements tells Euronews that any planned changes to EU protections for Ukrainian refugees should be carried out "very gradually

[asiazbo-blog]

The minimum form chip complete works of the world become the lithium cell protection scheme

As lithium cell was employed extensively, the capacity of its market has already been up to several hundred million per month, because one's own characteristic of lithium cell, its essential lithium cell protects IC market broadly.

SIP is a development trend of IC market, the lithium cell protection scheme is no exception, but lithium cell protects IC and MOS device process difference and conformance, authenticity requirement to make SIP unfortunate, even until encapsulation technology promote, appear a large amount of pairs of Die integrate the encapsulated transition type scheme two year.

Xysemi (comparable to the core microelectronics) At crafts and patents exclusive been key for technology device architecture,be be be exactly can solve by industry and difficult problems technologicalleddedded, and accomplish greater promotion on conformance, reliability, in order to meet the trade demand of the lithium cell industry, the XB430X series products arise at the historic moment.

XB4301, XB4251 are capsulation forms of SOT23-5L, the minimum scheme only needs a peripheral device, is very suitable for use in the definite battery fender application of space. XB4301 fills protecting, overfall is protected, intact lithium cells such as overcurrent protection and short circuit protection,etc. protect the function, and have pygmy working current.

XB4301 without opposing connection function, XB4301 concentrate on MP3 and the intersection of bluetooth and application mainly at present, including some mobile phone, GPS employ ;

XB4251 support opposing connection is new product the most, main needle employ to battery of mobile phone

Traditional battery protection scheme

Traditional battery protection scheme of Fig. 1 Need two chips (one SOT23-6L is capsulated, one SOP8 is capsulated) ,Need to connect the electric capacity of 3 pieces of resistance separately.

Other on the market " The single chip " Protection scheme of the battery

Scheme A: Scheme B: Scheme C: Fig. 2 other " single chips " Protection scheme of the battery

The overwhelming majority on the market at present " The single chip " Schemes are all in fact " Two core is unified " : Seal chip and MOS tube chip of the control device to put into the same capsulation. Because two internal chips come from different manufacturers actually, the shape can't be well matched, capsulate with different shapes finally, can't with common to capsulate under the a lot of situation, B shows) ,And generally capsulate bigger, can't save the peripheral component, so in this " Two core is unified " In fact can not reach the space-saving purpose, there is no cost advantage at all too

There is a kind of form chip scheme (the scheme C in Fig. 2) on the market It is the genuine single chip scheme, but because of the technological reason, can only do positive pole to protect, protected and inconsistent with the negative pole of the traditional scheme, the user need changes all test equipment and idea and could be used. Though this scheme has reduced certain capsulation cost, the chip cost has not been reduced, there is not a genuine cost advantage while competing with great mature traditional scheme of quantity. It became its enormous obstacle of popularizing course that opposite it and incompatible positive pole of traditional scheme protected the idea.

Comparable to the battery protection scheme of the core