BYS364_UPA2753GR Introduction

The power mos used on electric vehicles is a three-dimensional structure. The mos tube we have seen is actually composed of thousands of small mos tubes in parallel. You may think that one or a few bad moss should easily appear in thousands of small mos. In fact, it is not that easy. , the current manufacturing process basically guarantees the high consistency of various parameters of these small units. Low-power mos is a planar structure.

A few days ago, Vishay Intertechnology, Inc. announced that it has expanded its TNPU e3 series of automotive-grade high-precision thin-film flat chip resistors with new devices with a temperature coefficient (TCR) as low as 2 ppm/K, in 0603, 0805 and 1206 form factors.

BYS364_UPA2753GR

BYH6318

As for why not to use depletion-type MOS tubes, it is not recommended to get to the bottom of it. . For these two enhanced MOS tubes, NMOS is more commonly used.

There are three parasitic capacitance parameters in the MOS tube specification, namely: input capacitance Ciss, output capacitance Coss, and reverse transfer capacitance Crss. What do the three capacitance parameters represent in the body of the tube? How did it form? .

BYN41020A BYM41019A BYM41063 BYM429 BYN4286 BYT4222 BYN4224 BYC4213 BYM4225.

BYC4322 BYM4310 BYM4322 BYM4316 BYC4312 BYM438 BYS441 BYN4458 BYE4625Z BYM4612 .

BYS364_UPA2753GR

AO4944

NCE3075Q NCE3015S NCE3400E NCE3065K NCE3095AK.

When the UDS increases to a certain value, the drain PN junction breaks down, the leakage current increases rapidly, and the curve turns upward and enters the breakdown region. Power MOSFETs are used in power conversions such as switching power supplies and inverters, and they work in two regions, the cut-off region and the breakdown region. . The full area (UDS>UGS-UT) guarded in the above three areas is the full area, also known as the constant current area or the amplification area. The breakdown region is in the region of considerable drain-source voltage UDS, and the drain current is approximately constant.

When the low UDS separate pinch off voltage is large, the MOS tube is equivalent to a resistance, and this resistance decreases with the increase of UGS. Cut-off area (UGS). Growth slows as the conduction channel approaches pinch off. Figure 1. Drain output characteristics of MOS transistors The output characteristics of field effect transistors can be divided into four regions: variable resistance region, cut-off region, breakdown region and constant current region. Variable resistance region (UDS In this region, ID increases linearly as UDS increases.

The parasitic capacitance structure of the MOS tube is as follows. Among them, the width of polysilicon, the width of the channel and the trench, the thickness of the G oxide layer, and the doping profile of the PN junction are all factors that affect the parasitic capacitance. .

BYS364_UPA2753GR

NCE30TD120UT NCE40TD120UT NCE40TD120VT NCE30TD120BP NCE25TD120BT.

The performance parameters of NCE3401 are still good, suitable for load switching or pulse width modulation applications, and the impedance value is relatively low, and the new clean energy MOS tube has the characteristic process technology of shielded gate power and super junction power MOSFET. The parameter performance and sample delivery performance can be almost the same as foreign MOS tubes, such as the same used in lithium battery protection boards, NCE3401, AO3401, IRLML5203TR, DMP3098L-7, I think the functions can be satisfied in comparison, and the price is moderate NCE3401 is more suitable.

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