ACT412
Rev 1, 30-Oct-13
ELECTRICAL CHARACTERISTICS CONT’D
(VDD = 18V, LM = 0.5mH, RCS = 0.75ꢀ, VOUT = 13V, NP = 68, NS =12, NA = 17, TA = 25°C, unless otherwise specified,12V0.4A applica-
tion)
PARAMETER
SYMBOL TEST CONDITIONS
MIN
TYP
MAX UNIT
Protection
CS Short Waiting Time
2
2.25
0.1
1.75
190
1.75
135
20
3
µs
V
CS Short Detection Threshold
CS Open Threshold Voltage
Abnormal OCP Blanking Time
Inductance Short CS Threshold Voltage
Thermal Shutdown Temperature
Thermal Hysteresis
0.15
V
ns
V
˚C
˚C
V
VFBUVLO
IFBUVLO
0.28
0.2
20
Vo Short Detection Threshold
Line UVLO
mA
µA
mA
V
Line UVLO Hysteresis
Line OVP
IFBOVP
2.4
3
VFB Over Voltage Protection
Valley Detection
Valley Detection Time Window
VCOMP = 0.45V
3.3
µs
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