Functional Characteristics
Over Current Threshold Characteristics
4.4
Over Current Threshold Characteristics
Figure 14: Over Current (V
) vs. Input Voltage
IOVER
V
Peak Value)
IN
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0
1
1
2
2
3
3
4
4
5
5
VIN (V)
Test Conditions:
VFB = 2.4V
CGate = 1nF
V_Isns = 0V
VDD = 12V
FSW = 118kHz
Figure 15: Over Current (V
) vs. Temperature
IOVER
450
VIN = 1.5V
VIN = 2.25V
400
350
300
250
200
150
100
50
VIN = 3V
VIN = 3.7V
0
-40
-20
0
20
40
60
80
Temperature ( C)
ꢀ
Test Conditions:
VFB = 2.4V
CGate = 1nF
V_Isns = 0V
VDD = 12V
FSW = 118kHz
Copyright © 2009 Marvell
Doc. No. MV-S104983-01 Rev. A
Page 25
October 5, 2009, Preliminary
Document Classification: Proprietary