ISL6402 INTERSIL [Intersil Corporation], ISL6402 Datasheet - Page 8

• Manufacturer Part Number: ISL6402
• Description: 300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller
• Manufacturer: INTERSIL [Intersil Corporation]

Typical Performance Curves
(Oscilloscope Plots Are Taken Using the ISL6402EVAL4A Evaluation Board, VIN = 12V, Unless Otherwise Noted)
FIGURE 3. REFERENCE VOLTAGE VARIATION OVER
I
V
PHASE1 10V/DIV
L1
OUT1
0.5A/DIV, AC COUPLED
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
3.31
0.85
0.84
0.83
0.82
0.81
0.79
0.78
0.77
0.75
0.76
3.4
3.3
20mV/DIV, AC COUPLED
0.8
-40
FIGURE 1. PWM1 LOAD REGULATION
0
TEMPERATURE
FIGURE 5. PWM1 WAVEFORMS
0.5
-20
1
LOAD CURRENT (A)
1.5
TEMPERATURE (°C)
0
8
2
20
2.5
40
3
3.5
60
4
80
4.5
ISL6402
FIGURE 4. SOFT-START WAVEFORMS WITH PGOOD
I
PGOOD 5V/DIV
V
V
V
V
L2
PHASE2 10V/DIV
OUT3
OUT1
OUT2
OUT2
0.5A/DIV, AC COUPLED
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
3.31
2V/DIV
2V/DIV
2V/DIV
3.4
3.3
20mV/DIV, AC COUPLED
FIGURE 2. PWM2 LOAD REGULATION
0
FIGURE 6. PWM2 WAVEFORMS
0.5
1
LOAD CURRENT (A)
1.5
2
2.5
3
3.5
November 8, 2004
4
FN9123.3
4.5