FDMF6823A Fairchild Semiconductor, FDMF6823A Datasheet - Page 9

• Manufacturer Part Number: FDMF6823A
• Manufacturer: Fairchild Semiconductor

© 2011 Fairchild Semiconductor Corporation
FDMF6823A • Rev. 1.0.2
Typical Performance Characteristics
Test Conditions: V
unless otherwise specified.
Figure 14.
1.005
1.000
0.995
0.990
0.985
0.980
0.975
Figure 16.
26
24
22
20
18
16
14
3.2
3.1
3.0
2.9
2.8
2.7
2.6
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
CIN
300
25
= 5V, F
SW
Voltage
= 300kHz, I
OUT
5.0
SW
55
350
=1V, V
= 300kHz, V
OUT
DRV
OUT
100
= 0A
& V
400
(nH)
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.
1.03
1.02
1.01
1.00
0.99
0.98
0.97
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
70
60
50
40
30
20
10
=250nH, T
100
4.50
0
V
T
V
IN
A
IN
200
= 25°C
= 12V, V
5
= 12V, V
PWM Threshold vs. Driver Supply Voltage
Driver Supply Current vs. Output Current
F
SW
300
10
A
Driver Supply Current vs. Switching
Module Switching Frequency, F
= 1000kHz
=25°C, and natural convection cooling,
DRV
4.75
DRV
Driver IC Supply Voltage, V
15
Module Output Current, I
& V
400
& V
CIN
CIN
20
500
Frequency
= 5V, V
= 5V, V
25
600
5.00
OUT
OUT
F
SW
= 1V, I
30
= 1V
= 300kHz
700
35
OUT
OUT
800
CIN
SW
= 0A
(A)
5.25
(V)
40
(kHz)
900 1000 1100
V
V
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IH_PWM
HIZ_PWM
45
V
V
V
TRI_LO
TRI_HI
IL_PWM
50
5.50
55