ISL6244 Datasheet, PDF (6/25 Pages) Intersil Corporation – Multi-Phase PWM Controller

Typical Operating Performance
ISL6244
1.650
Vo+ (AMD SPEC)
1.600
1.550
1.500
Vo- (AMD SPEC)
1.450
TARGET
VBAT 8.4V
1.400
0
20
40
60
OUTPUT CURRENT (A)
FIGURE 7. ISL6244 DROOP: V_BAT = 8.4V
100
90
80
70
60
Vbat = 8.4
Vbat = 10.8
Vbat = 14.4
Vbat = 19
Vbat = 21
50
0
10
20
30
40
50
60
OUTPUT CURRENT (A)
FIGURE 9. ISL6244 EFFICIENCY vs LOAD
FIGURE 8. FOUR PHASE CURRENT BALANCE @ 52A
1.650
Vo+ (AMD SPEC)
1.600
1.550
1.500
Vo- (AMD SPEC)
1.450
TARGET
VBAT 21V
1.400
0
20
40
60
OUTPUT CURRENT (A)
FIGURE 10. ISL6244 DROOP: V_BAT = 21V
6
FN9106.3
December 28, 2004