BYP331_SI4804CDY-T1-E3 Introduction

Today I will introduce to you a domestic FET that is suitable for lithium battery protection boards and can replace MOS tubes such as AO3401: NCE3401.

MOS tubes like NCE80H12 convert the DC power in the battery into AC power when the electric vehicle is running normally, thereby driving the motor to run.

BYP331_SI4804CDY-T1-E3

BYH6660

NCE3019AS NCE3045G NCE3400AY NCE30ND07S NCE8601B.

BYP31538 BYP31510 BYP31575 BYH31574 BYD31523A BYH31532 BYM31580 BYH31519 BYS31535 BYM31545 .

NCE30H11K NCE3402B NCE30H10AK NCE2304 NCE3404.

The reason is that the on-resistance is small and it is easy to manufacture. Therefore, in the application of switching power supply and motor drive, NMOS is generally used.

BYP331_SI4804CDY-T1-E3

SI4370DY-T1-E3

NCE3075Q NCE3015S NCE3400E NCE3065K NCE3095AK.

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.

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.

BYP331_SI4804CDY-T1-E3

The lithium battery is mainly composed of two blocks, the battery cell and the lithium battery protection board PCM.

The lithium battery of electric vehicles can work normally, largely thanks to the lithium battery protection board.

relevant information