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ISL6144_07 Datasheet, PDF (11/29 Pages) Intersil Corporation – High Voltage ORing MOSFET Controller
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ISL6144
Typical Performance Curves and Waveforms (Continued)
6.000
5.875
5.750
5.625
75V
48V
10V AND 12V
5.500
5.375
5.250
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
100 120
HVREF(VZ)
1V/DIV
10V/DIV
VG
VIN
10V/DIV
IIN
10A/DIV
FIGURE 9. HVREF VOLTAGE
FIGURE 10. FIRST SUPPLY START-UP
rDS(ON) = 19mΩ, QTOT = 70nC,
EXTERNAL CGS = 33nF, VTH(HS) = 55mV
IIN2
VOUT
5A/DIV
VIN2
10V/DIV
VGS2
10V/DIV
5V/DIV
rDS(ON) = 19mΩ, QTOT = 70nC,
EXTERNAL CGS = 33nF, VTH(HS) = 55mV
IIN2
VOUT
VIN2
VGS2
5A/DIV
10V/DIV
10V/DIV
5V/DIV
FIGURE 11. HIGH SPEED TURN-OFF, VIN = 48V, COMMON
LOAD IS SMPS (CLOAD = 100µF) WITH
EQUIVALENT 4A LOAD
FIGURE 12. HIGH SPEED TURN-OFF, VIN = 48V, COMMON
LOAD IS SMPS (CLOAD = 100µF) WITH
EQUIVALENT 1.3A LOAD
11
FN9131.3
February 15, 2007
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