ISL6121_14 Datasheet, PDF (6/11 Pages) Intersil Corporation – Single Supply Integrated Current Limiting Controller

ISL6121
Typical Performance Curves (Continued)
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
3 4 5 6 7 8 9 10 1 12
FAULT CURRENT (A)
FIGURE 8. CR SETTLING TIME vs FAULT CURRENT
ENABLE
VOUT
C_L = 100µF
C_L = 0.1µF, 10µF
VOUT (1V/DIV.)
TIME (200µs/DIV.)
FIGURE 9. SLOW TURN-OFF vs C_LOAD
C_L = 10µF
C_L=100µF
C_L = 0.1µF
VOUT
VOUT (1V/DIV.)
TIME (400µs /DIV.)
FIGURE 10. FAST TURN-OFF vs C_LOAD
ENABLE
VOUT
VOUT
IOUT
12ms
TIME (2ms/DIV.)
FIGURE 11. ISL6121 TURN-ON INTO 3A OC
ENABLE
FAULT
VOUT
FAULT
ENABLE
IOUT
TIME (1ms/DIV.)
FIGURE 12. ISL6121 TURN-ON INTO A 6ms MOMENTARY OC
6
VOUT
TIME (2ms /DIV.)
FIGURE 13. VENDOR TURN-ON INTO A 6ms MOMENTARY OC
FN9004.2
November 12, 2004