ISL78226 Datasheet, PDF (30/94 Pages) Intersil Corporation – Cycle-by-cycle peak current limiting

ISL78226
Typical Performance Curves All the performance curves are taken from the Evaluation Board (ISL78226EVAL1Z)
unless otherwise noted.
97
97
96
96
95
95
94
94
93
BAT48 = 36V
93
BAT12 = 10V
BAT48 = 48V
BAT12 = 12V
92
92
BAT48 = 56V
BAT12 = 16V
91
91
90
0
20 40 60 80 100 120 140 160 180 200
BAT12 LOAD CURRENT (A)
FIGURE 8. BUCK EFFICIENCY (6-PHASE, BUCK MODE, DE MODE,
PHASE DROP ENABLED, F_clk = 100kHz)
90
0
5
10
15
20
25
30
35
BAT48 LOAD CURRENT (A)
FIGURE 9. BOOST EFFICIENCY (6-PHASE, BOOST MODE, DE MODE,
PHASE DROP ENABLED, F_clk = 100kHz)
12.10
12.08
12.06
12.04
12.02
12.00
11.98
11.96
11.94
11.92
11.90
0
BAT48=36V
BAT48=48V
BAT48=56V
20 40 60 80 100 120 140 160 180 200
BAT12 LOAD CURRENT (A)
FIGURE 10. BAT12 OUTPUT VOLTAGE (6-PHASE, BUCK MODE, DE
MODE, PHASE DROP ENABLED, F_clk = 100kHz)
12.10
12.08
12.06
12.04
12.02
12.00
11.98
11.96
11.94
11.92
11.90
0
+25°C
-40°C
+75°C
+125°C
20 40 60 80 100 120 140 160 180 200
BAT12 LOAD CURRENT (A)
FIGURE 11. BAT12 OUTPUT VOLTAGE VS TEMPERATURE (6-PHASE,
BUCK MODE, DE MODE, PHASE DROP ENABLED,
F_clk = 100kHz)
2.40
2.30
2.20
2.10
2.00
1.90
BAT48=36V
1.80
BAT48=48V
1.70
BAT48=56V
1.60
1.50
0
20 40 60 80 100 120 140 160 180 200
BAT12 LOAD CURRENT (A)
FIGURE 12. BUCK IMON VOLTAGE (6-PHASE, BUCK MODE, DE MODE,
PHASE DROP ENABLED, F_clk = 100kHz)
100
99
98
97
96
95
+25°C
94
93
-40°C
92
+75°C
91
+125°C
90
0
5
10
15
20
25
30
35
BAT48 LOAD CURRENT (A)
FIGURE 13. EFFICIENCY, BAT12 = 12V (6-PHASE, BOOST MODE, DE
MODE, PHASE DROP ENABLED, F_clk = 100kHz)
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FN8887.0
November 7, 2016