SC402B
5
Electrical Characteristics (continued)
Parameter
Conditions
Min  Typ  Max  Units
Power Good (continued)
Power Good start-up Delay Threshold on SS pin
SS voltage when PGOOD goes high
64
%VDD
Fault (noise immunity) Delay Time
(2)
5
Leakage
1    礎
Power Good On-Resistance
10
&
Fault Protection
Valley Current Limit
(3)
VDD = 5V, R
ILIM
 = 6810, T
J
 = 0 to +125 癈
8.5    10   11.5
A
VDD = 3V, R
ILIM
 = 6810
9
I
LIM
 Source Current
10
I
LIM
Comparator Offset
With respect to AGND
-10    0    +10   mV
Output Under-Voltage Fault
V
FB
 with respect to internal 600mV reference,
8 consecutive clocks
-25
%
Smart Power-save Protection Threshold
(2)
V
FB
 with respect to internal 600mV reference
+10
%
Over-Voltage Protection Threshold
V
FB
 with respect to internal 600mV reference
+20
%
Over-Voltage Fault Delay
(2)
 
5
Over-Temperature Shutdown
(2)
10癈 hysteresis
150
Logic Inputs/Outputs
Logic Input High Voltage
ENL
1.0
V
Logic Input Low Voltage
ENL
0.4    V
EN/PSV Input for PSAVE Operation
 (2)
VDD = 5V
2.2
5    V
EN/PSV Input for Forced Continuous Operation
 (2)
1
2    V
EN/PSV Input for Disabling Switcher
0
0.4    V
EN/PSV Input Bias Current
EN/PSV= VDD or AGND
-10
+10   糀
ENL Input Bias Current
ENL = V
IN
 = 28V
10    18    糀
FBL, FB Input Bias Current
FBL, FB = VDD or AGND
-1
+1    糀
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