LM9061N National Semiconductor, LM9061N Datasheet - Page 12

• Manufacturer Part Number: LM9061N
• Description: Power MOSFET Driver with Lossless Protection
• Manufacturer: National Semiconductor

Figure 8 shows a method of increasing the MOSFET Turn
Application Hints
INCREASING MOSFET TURN ON TIME
The ability of the LM9061 to quickly turn on the MOSFET is
an important factor in the management of the MOSFET
power dissipation Caution should be exercised when at-
tempting to increase the MOSFET Turn On time by limiting
the Gate drive current The MOSFET average dissipation
and the LM9061 Delay time must be recalculated with the
extended switching transition time
On time without affecting the Turn Off time In this method
the Gate is charged at an exponential rate set by the added
external Gate resistor and the MOSFET Gate capacitances
Although the LM9061 will drive MOSFETs from any manu-
facturer National Semiconductor offers a wide range of
power MOSFETs Figure 9 shows a small sample of the
devices available
(Continued)
FIGURE 8 Increasing MOSFET Turn On Time
12
Dual
NDS9936
NDS9945
NDP706A
NDP706B
NDP708A
NDB708A
NDP606A
NDP606B
NDP608A
NDB608A
NDP508A
NDB508A
NDP408A
NDS9410
FIGURE 9 Recommended DMOS Power MOSFETs
Part
3 5A
75A
70A
60A
60A
48A
42A
36A
36A
19A
19A
11A
7A
5A
I
D
V
60V
60V
80V
80V
60V
60V
80V
80V
80V
80V
80V
30V
30V
60V
DSS
TL H 12317 – 16
R
0 015
0 018
0 022
0 022
0 025
0 028
0 042
0 042
0 080
0 080
0 160
0 03
0 05
0 10
DS(ON)
Package
TO-220
TO-220
TO-220
TO-263
TO-220
TO-220
TO-220
TO-263
TO-220
TO-263
TO-220
SO-8
SO-8
SO-8