FDMF6820C Fairchild Semiconductor, FDMF6820C Datasheet - Page 9

• Manufacturer Part Number: FDMF6820C
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FDMF6820C • Rev. 1.0.2
Typical Performance Characteristics
Test Conditions: V
unless otherwise specified.
Figure 14.
1.01
1.00
0.99
0.98
0.97
0.96
Figure 16.
17
16
15
14
13
12
10
3.2
3.1
3.0
2.9
2.8
2.7
2.6
11
Figure 12.
4.0
200
V
V
IN
IN
-55
= 12V, V
= 12V, V
Driver Supply Current vs. Driver Supply
250
Driver IC Junction Temperature, T
UVLO Threshold vs. Temperature
Driver Supply Voltage, V
OUT
DRV
0
4.5
Power Loss vs. Output Inductor
IN
=12V, V
= 1V, F
& V
Output Inductor, L
300
CIN
25
= 5V, F
SW
Voltage
= 300kHz, I
OUT
5.0
350
SW
55
=1V, V
= 300kHz, V
OUT
OUT
DRV
100
400
(nH)
= 0A
& V
CIN
CIN
OUT
=5V, V
5.5
J
(V)
(
125
= 1V, I
o
UVLO
C)
UVLO
450
OUT
UP
DN
DRV
150
= 30A
=5V, L
500
6.0
9
Figure 17.
Figure 15.
OUT
Figure 13.
1.04
1.03
1.02
1.01
1.00
0.99
0.98
3.0
2.5
2.0
1.5
1.0
0.5
45
40
35
30
25
20
15
10
=250nH, T
5
100
4.50
0
V
T
V
IN
A
IN
200
= 25°C
= 12V, V
= 12V, V
5
PWM Threshold vs. Driver Supply Voltage
F
Driver Supply Current vs. Output Current
SW
300
A
Driver Supply Current vs. Switching
= 1000kHz
Module Switching Frequency, F
=25°C, and natural convection cooling,
DRV
10
4.75
DRV
Driver IC Supply Voltage, V
Module Output Current, I
& V
400
& V
CIN
15
CIN
500
Frequency
= 5V, V
= 5V, V
20
600
5.00
OUT
OUT
F
= 1V, I
SW
25
= 1V
700
= 300kHz
OUT
OUT
30
800
CIN
SW
= 0A
(A)
5.25
(V)
(kHz)
900 1000 1100
35
V
V
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HIZ_PWM
IH_PWM
V
V
V
TRI_LO
IL_PWM
TRI_HI
40
5.50
45