参数资料
型号: MTB1306
厂商: MOTOROLA INC
元件分类: JFETs
英文描述: TMOS POWER FET 75 AMPERES
中文描述: 75 A, 30 V, 0.0085 ohm, N-CHANNEL, Si, POWER, MOSFET
文件页数: 5/8页
文件大小: 176K
代理商: MTB1306
5
Motorola TMOS Power MOSFET Transistor Device Data
Figure 8. Gate–To–Source and Drain–To–Source
Voltage versus Total Charge
Figure 9. Resistive Switching Time
Variation versus Gate Resistance
RG, GATE RESISTANCE (OHMS)
1.0
10
100
10,000
100
t
tr
tf
td(off)
td(on)
1000
VDD = 15 V
ID = 75 A
VGS = 5.0 V
TJ = 25
°
C
10
18
V
15
12
9.0
0
7.5
5.0
0
QG, TOTAL GATE CHARGE (nC)
V
10
10
20
30
40
TJ = 25
°
C
ID = 75 A
VDS
VGS
60
0
Q1
Q2
QT
Q3
6.0
3.0
50
2.5
DRAIN–TO–SOURCE DIODE CHARACTERISTICS
The switching characteristics of a MOSFET body diode
are very important in systems using it as a freewheeling or
commutating diode. Of particular interest are the reverse re-
covery characteristics which play a major role in determining
switching losses, radiated noise, EMI and RFI.
System switching losses are largely due to the nature of
the body diode itself. The body diode is a minority carrier de-
vice, therefore it has a finite reverse recovery time, trr, due to
the storage of minority carrier charge, QRR, as shown in the
typical reverse recovery wave form of Figure 15. It is this
stored charge that, when cleared from the diode, passes
through a potential and defines an energy loss. Obviously,
repeatedly forcing the diode through reverse recovery further
increases switching losses. Therefore, one would like a
diode with short trr and low QRR specifications to minimize
these losses.
The abruptness of diode reverse recovery effects the
amount of radiated noise, voltage spikes, and current ring-
ing. The mechanisms at work are finite irremovable circuit
parasitic inductances and capacitances acted upon by high
di/dts. The diode’s negative di/dt during ta is directly con-
trolled by the device clearing the stored charge. However,
the positive di/dt during tb is an uncontrollable diode charac-
teristic and is usually the culprit that induces current ringing.
Therefore, when comparing diodes, the ratio of tb/ta serves
as a good indicator of recovery abruptness and thus gives a
comparative estimate of probable noise generated. A ratio of
1 is considered ideal and values less than 0.5 are considered
snappy.
Compared to Motorola standard cell density low voltage
MOSFETs, high cell density MOSFET diodes are faster
(shorter trr), have less stored charge and a softer reverse re-
covery characteristic. The softness advantage of the high
cell density diode means they can be forced through reverse
recovery at a higher di/dt than a standard cell MOSFET
diode without increasing the current ringing or the noise gen-
erated. In addition, power dissipation incurred from switching
the diode will be less due to the shorter recovery time and
lower switching losses.
0.75
0.50
VSD, SOURCE–TO–DRAIN VOLTAGE (VOLTS)
0.55
0.60
0.65
0
4.0
10
12
I
VGS = 0 V
TJ = 25
°
C
Figure 10. Diode Forward Voltage versus Current
2.0
6.0
0.70
8.0
0.45
20
16
18
14
相关PDF资料
PDF描述
MTB15N06E TMOS POWER FET 15 AMPERES
MTB15N06V TMOS POWER FET 15 AMPERES
MTB16N25E TMOS POWER FET 16 AMPERES
MTB20N20E TMOS POWER FET 20 AMPERES 200 VOLTS
MTB2N60E TMOS POWER FET 2.0 AMPERES 600 VOLTS
相关代理商/技术参数
参数描述
MTB1-30PAL2-01 制造商:ITT Interconnect Solutions 功能描述:Conn Unshrouded Header PIN 30 POS 1.27mm Solder RA Thru-Hole
MTB1-30PAL79 制造商:ITT Interconnect Solutions 功能描述:MTB1-30PAL79 / 095308-0026 / MICRO
MTB1-30PAL80 制造商:ITT Interconnect Solutions 功能描述:Conn Unshrouded Header PIN 30 POS 1.27mm Solder RA Thru-Hole
MTB1-30PH001 制造商:ITT Interconnect Solutions 功能描述:MTB1-30PH001 - Bulk
MTB1-30PH029-01 制造商:ITT Interconnect Solutions 功能描述:MTB1-30PH029-01 - Bulk