乾野电子主营范围:超结MOSFET,中低压MOSFET,高压MOSFET,51单片机系列。
MOSFET的参数介绍
Parameter |
Symbol |
Limit |
Unit |
Drain-Source Voltage |
VDS |
-55 |
V |
Gate-Source Voltage |
VGS |
±20 |
V |
Drain Current-Continuous |
ID |
-30 |
A |
Drain Current-Continuous(TC=100℃) |
ID (100℃) |
-21 |
A |
Pulsed Drain Current |
IDM |
110 |
A |
Maximum Power Dissipation |
PD |
90 |
W |
Derating factor |
|
0.72 |
W/℃ |
Single pulse avalanche energy (Note 5) |
EAS |
420 |
mJ |
Parameter |
Symbol |
Condition |
Min |
Typ |
Max |
Unit |
Off Characteristics |
||||||
Drain-Source Breakdown Voltage |
BVDSS |
VGS=0V ID=-250μA |
-55 |
- |
- |
V |
Zero Gate Voltage Drain Current |
IDSS |
VDS=-55V,VGS=0V |
- |
- |
1 |
μA |
Gate-Body Leakage Current |
IGSS |
VGS=±20V,VDS=0V |
- |
- |
±100 |
nA |
On Characteristics (Note 3) |
||||||
Gate Threshold Voltage |
VGS(th) |
VDS=VGS,ID=-250μA |
-2 |
-3 |
-4 |
V |
Drain-Source On-State Resistance |
RDS(ON) |
VGS=-10V, ID=-15A |
- |
30 |
40 |
mΩ |
Forward Transconductance |
gFS |
VDS=-25V,ID=-16A |
8 |
- |
- |
S |
Dynamic Characteristics (Note4) |
MOSFET在数位电路上应用的另外一大优势是对直流(DC)讯号而言,MOSFET的栅极端阻抗为无限大(等效于开路),也就是理论上不会有电流从MOSFET的栅极端流向电路里的接地点,而是完全由电压控制栅极的形式。这让MOSFET和他们最主要的竞争对手BJT相较之下更为省电,而且也更易于驱动。在CMOS逻辑电路里,除了负责驱动芯片外负载(off-chip load)的驱动器(driver)外,每一级的逻辑门都只要面对同样是MOSFET的栅极,如此一来较不需考虑逻辑门本身的驱动力。相较之下,BJT的逻辑电路(例如最常见的TTL)就没有这些优势。MOSFET的栅极输入电阻无限大对于电路设计工程师而言亦有其他优点,例如较不需考虑逻辑门输出端的负载效应(loading effect)。
乾野电子主营范围:超结MOSFET,中低压MOSFET,高压MOSFET,51单片机系列。 MOSFET的参数介绍 Parameter Symbol Limit Unit Drain-Source Voltage VDS -55 V Gate-Source Voltage VGS ±20 V Drain Current-Continuous ID -30 A Drain Current-Continuous(TC=100℃) ID (100℃) -21 A Pulsed Drain Current IDM ...
乾野电子主营范围:超结MOSFET,中低压MOSFET,高压MOSFET,51单片机系列。 MOSFET的参数介绍 Parameter Symbol Limit Unit Drain-Source Voltage VDS -55 V Gate-Source Voltage VGS ±20 V Drain Current-Continuous ID -30 A Drain Current-Continuous(TC=100℃) ID (100℃) -21 A Pulsed Drain Current IDM ...