5
dc1989abf
DEMO MANUAL DC1989A-B
Quick start proceDure
Figure 8. Thermal Performance at V
IN
= 12V, V
OUT0
= 1V, I
OUT0
= 75A, T
A
= 23.8°C, Air Flow 200LFM
V
OUT0
(20MHz BW) [50mV/DIV]
37.5A TO 75A LOAD STEP
V
OUT0
(20MHz BW) [10mV/DIV]
Figure 6. Output Voltage V
OUT0
vs Load Current
(V
OUT0
RANGE = 0)
Figure 9. Current Sharing at V
IN
= 12V, V
OUT0
= 1V
(Based on the Current Readback)
Figure 7. Output Voltage Ripple at V
IN
= 12V,
V
OUT0
= 1V, I
OUT0
= 75A
Figure 10. Total Current Readback vs Load
Current at V
IN
= 12V, V
OUT0
= 1V
0
10
20
30
75
50
40
5
15
25
45
60 65 70
55
35
LOAD CURRENT (A)
PHASE CURRENT (A)
14
12
8
10
6
2
4
0
–2
I
OUT_PHASE#1
I
OUT_PHASE#2
I
OUT_PHASE#3
I
OUT_PHASE#4
I
OUT_PHASE#5
I
OUT_PHASE#6
LOAD CURRENT (A)
0
TOT
AL CURRENT READBACK (A)
80
50
40
70
60
30
10
20
0
10
20
30
75
50
40
5
15
25
45
60 65 70
55
35
