BYP36511Z_UPA1872BGR Introduction

Assuming that the carriers of the conductive channel are electrons, it is called an N-channel; assuming that the carriers are holes, it is called a P-channel. According to the carrier of the conduction channel, it can be divided into N channel and P channel. A MOS tube is a semiconductor device in which unipolar carriers participate in conduction.

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BYP36511Z_UPA1872BGR

BYM3312-X

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.

BYN41020A BYM41019A BYM41063 BYM429 BYN4286 BYT4222 BYN4224 BYC4213 BYM4225.

Barrier capacitance: In power semiconductors, when the N-type and P-type semiconductors are combined, the electrons of the N-type semiconductor will partially diffuse into the holes of the P-type semiconductor due to the concentration difference, so they will form on both sides of the junction surface. Space charge area (the electric field formed by the space charge area will resist the diffusion movement, and finally make the diffusion movement reach equilibrium);

BYS31511 BYH32025A BYS32026A BYP32027A BYF32028A BYF32018A BYD32011Z BYF32090 BYJ32056 BYP32011A

BYP36511Z_UPA1872BGR

AM9945N-T1-PF

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. .

BYM8615 BYH8638 BYN8610A BYM8628 BYN8222 BYM31020 BYS31010 BYJ3104 BYH3105 BYP3109.

Diffusion capacitance: When a forward voltage is applied, the non-equilibrium minority carrier concentration near the interface of the depletion layer is high, far from the non-equilibrium minority carrier concentration is low, and the concentration gradually decays from high to 0 until it reaches zero. The process of charge accumulation and release in this phenomenon is the same as that of capacitor charging and discharging, which is called diffusion capacitance. When the applied forward voltage increases, the concentration of unbalanced minority carriers increases and the concentration gradient also increases, and when the applied voltage decreases, the change is opposite.

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. .

BYP36511Z_UPA1872BGR

The functions of the MOS tube in the protection board are: 1. Detect overcharge, 2. Detect over-discharge, 3. Detect over-current during charging, 4. Detect over-current during discharge, 5. Detect over-current during short circuit.

NCE25TD135LP NCE1608N NCE18ND11U NCE3134 NCE20ND07U.

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