Data Sheet

© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
FDMF6705B • Rev. 1.0.3 8
FDMF6705B - Extra-Small, High-Performance, High-Frequency DrMOS Module
Typical Performance Characteristics
Test Conditions: V
IN
=12 V, V
OUT
=1.0 V, V
CIN
=5 V, V
DRV
=5 V, L
OUT
=320 nH, T
A
=25°C, and natural convection cooling,
unless otherwise specified.
Figure 6. Safe Operating Area Figure 7. Module Power Loss vs. Output Current
Figure 8. Module Power Loss vs. Output Current Figure 9. Module Power Loss vs. Switching
Frequency
Figure 10. Normalized Power Loss vs. Input Voltage Figure 11. Normalized Power Loss vs. Driver
Supply Voltage
0
5
10
15
20
25
30
35
40
45
0 25 50 75 100 125 150
Module Output current, I
OUT
(A)
PCB Temperature (°C)
f
SW
= 300kHz
f
SW
= 1MHz
V
IN
= 12V, V
OUT
= 1.0V
Θ
JPCB
= 3.5°C/W
0
1
2
3
4
5
6
7
8
9
10
11
0 5 10 15 20 25 30 35 40
Module Power Loss (W)
Output Current, I
OUT
(A)
300kHz
500kHZ
800kHz
1MHz
V
IN
= 12V, V
OUT
= 1V
0
1
2
3
4
5
6
7
8
9
10
11
12
0 5 10 15 20 25 30 35 40
Module Power Loss (W)
Output Current, I
OUT
(A)
300kHz
500kHz
800kHz
1MHz
V
IN
= 19V, V
OUT
= 1V
1
2
3
4
5
6
7
8
9
200 300 400 500 600 700 800 900 100
0
Module Power Loss (W)
Module Switching Frequency, f
SW
(kHz)
Vin = 19V, Iout = 30A
Vin = 12V, Iout = 30A
Vin = 19V, Iout = 20A
Vin = 12V, Iout = 20A
0.95
1.00
1.05
1.10
1.15
1.20
4 6 8 10121416182
0
Normalized Module Power Loss
Module Input Voltage, V
IN
(V)
I
OUT
= 30A, f
SW
= 300kHz
0.90
0.95
1.00
1.05
1.10
1.15
4.50 4.75 5.00 5.25 5.50
Normalized Module Power Loss
Driver Supply Voltage, V
DRV
and V
CIN
(V)
V
IN
= 12V, I
OUT
= 30A, f
SW
= 300kHz