ISL62386 Datasheet, PDF (10/20 Pages) Intersil Corporation – High-Efficiency, Quad Output System Power Supply Controller for Notebook Computers

Typical Performance (Continued)
1) CH1: 5V 1ms
2) CH2: 2V 1ms
3) CH3: 5V 1ms
EN1
V_O1
V_O2
ISL62386
1) CH1: 5V 1ms
2) CH2: 2V 1ms
3) CH3: 5V 1ms
EN2
V_O1
V_O2
FIGURE 17. DELAYED START, V_IN = 12V, V_O1 = 3.3V, V_O2 = 5V,
EN2 = FLOAT, NO LOAD
1) CH1: 5V 1ms
2) CH2: 5V 1ms
3) CH3: 2V 1µs
4) CH4: 5V 1µs
V_O1
V_O2
PGOOD
LDO3
FIGURE 18. DELAYED START, V_IN = 12V, V_O1 = 3.3V, V_O2 = 5V,
EN1 = FLOAT, NO LOAD
1) CH1: 2V 100µs
2) CH2: 5V 100µs
3) CH3: 5A 100µs
V_O1
PGOOD
I_O1
FIGURE 19. DELAYED START , V_IN = 12V, V_O1 = 3.3V,
V_O2 = 5V, EN1 = 1, EN2 = FLOAT, NO LOAD
1) CH1: 5V 200µs
2) CH2: 5V 200µs
3) CH3: 500mV 200µs
4) CH4: 5V 200µs
V_O1
V_O2
FB1
PGOOD
FIGURE 20. OVERCURRENT PROTECTION, V_IN = 12V,
V_O1 = 3.3V
1) CH1: 1V 10µs
2) CH2: 5V 10µs
3) CH3: 10V 10µs
4) CH4: 5V 10µs
V_O1
LGATE1
PHASE1
PGOOD
FIGURE 21. UNDERVOLTAGE PROTECTION, FAULT ON
SMPS1, V_IN = 12V, V_O1 = 3.3V, V_O2 = 5V, NO
LOAD
10
FIGURE 22. OVERVOLTAGE PROTECTION, AUTO-RESTART
WHEN FAULT IS CLEARED. V_IN = 12V, NOMINAL
V_O1 = 3.3V, NO LOAD, DEM OPERATION
FN6831.0
February 4, 2009