NCE2953_NCEP15T11D Introduction

The power mos used on electric vehicles is a three-dimensional structure. Low-power mos is a planar 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.

As the switch tube of the driving part, the main focus of the MOS tube is the withstand voltage, current withstand value and switching speed. The MOS tube is a voltage-driven device. As long as an appropriate voltage is applied between the gate G and the source S, the conduction path between the source S and D will be formed.

NCE2953_NCEP15T11D

NCE0240

MOS tube 3306 product features 1. RDS(on)=7mΩ@VGS=10V 2. Lead-free green equipment 3. Low resistance switch to reduce conduction loss 4. High avalanche current.

NCE3019AS NCE3045G NCE3400AY NCE30ND07S NCE8601B.

NCE2025I NCE2025S NCE2030K NCE2030U NCE2030.

Figure four types of MOSFETs and their graphical symbols. According to the two points of the conductive channel and the process of channel formation, MOS tubes can be divided into: P-channel enhancement MOS tubes, P-channel depletion MOS tubes, N-channel enhancement MOS tubes and N-channel depletion MOS tubes . Power MOSFETs are generally rarely used in P-channel. Since the mobility of holes is lower than that of electrons, the on-resistance of P-channel transistors is larger than that of N-channel transistors for the same channel size. .

NCE2953_NCEP15T11D

NCEP1545K

NCE3075Q NCE3015S NCE3400E NCE3065K NCE3095AK.

. For example, electronic fuel injection system, anti-lock brake control, anti-skid control, traction control, electronically controlled suspension, electronically controlled automatic transmission, electronic power steering, etc. The electronic device that can be used independently in the environment has no direct relationship with the performance of the car itself.

Another technique is to intermittently improve the structure of the MOSFET and use a straight V-groove structure. FIG. 3 is a cross-sectional view of the structure of a V-channel MOSFET. In order to avoid the problems of too small current-carrying capacity and large on-resistance of MOSFET, two techniques are generally used in high-power MOSFETs. One is to connect millions of low-power MOSFET unit cells in parallel to improve the current-carrying capacity of MOSFET. .

. 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.

NCE2953_NCEP15T11D

The main functions of the lithium battery protection board are: 1 overcharge protection, 2 short circuit protection, 3 over current protection, 4 over discharge protection, 5 normal state.

NCE8205B NCE8205 NCE8205i NCE8205E NCE9926.

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