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1V to 16V, Single-Channel, Hot-Swap Controllers
with Precision Current-Sensing Output
ELECTRICAL CHARACTERISTICS (continued)
(V PWR = V IN = 12V, R SENSE = 4m I , R FCOMP = R SCOMP = 2k I , R GATE = 1k I , C GATE = 330nF, C REG = 1 F F, unless otherwise noted.
Typical Values at V PWR = V IN = 3.3V, T A = +25 N C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
CURRENT-SENSE AMPLIFIER
Input Common-Mode Range
Input Offset Error
V IN - V SENSE
1.5
0.1
V
mV
Transconductance Gain
g M
10mV P (V IN - V SENSE ) P 50mV,
-40 N C P T A P +85 N C
10mV P (V IN - V SENSE ) P 50mV,
0 N C P T A P +25 N C
2457
2467
2500
2500
2537
2532
F S
Set V IN - V SENSE = 50mV, measure I CSOUT ,
V CSOUT = 25mV (-40 N C P T A P +85 N C)
122.1
125
128
Combined Gain and Offset
Accuracy
Set V IN - V SENSE = 50mV, measure I CSOUT ,
V CSOUT = 25mV (0 N P T A P +25 N C)
Set V IN - V SENSE = 10mV, measure I CSOUT ,
V CSOUT = 25mV (-40 N C P T A P +85 N C)
Set V IN - V SENSE = 10mV, measure I CSOUT ,
V CSOUT = 25mV (0 N P T A P +25 N C)
123.5
22.5
24.0
125
25
25
126.5
27.6
26.0
F A
2mV < (V IN - V SENSE ) < 10mV
(-40 N C P T A P +85 N C),
% error = (I CSOUT - (V IN - V SENSE ) x
0.0025)/(10mV x 0.0025)
2mV < (V IN - V SENSE ) < 10mV
(0 N C P T A P +25 N C),
% error = (I CSOUT - (V IN - V SENSE ) x
-10
-4.21
+10
+4.21
% of
10mV
Full-Scale
Output
0.0025)/(10mV x 0.0025)
2mV < (V IN - V SENSE ) < 25mV
Total Full-Scale Error
(-40 N C P T A P +85 N C),
% error = (I CSOUT - (V IN - V SENSE ) x
0.0025)/(25mV x 0.0025)
2mV < (V IN - V SENSE ) < 25mV
(0 N C P T A P +25 N C),
% error = (I CSOUT - (V IN - V SENSE ) x
-4.1
-1.68
+4.1
+1.68
% of
25mV
Full-Scale
Output
0.0025)/(25mV x 0.0025)
2mV < (V IN - V SENSE ) < 50mV
(-40 N C P T A P +85 N C),
% error = (I CSOUT - (V IN - V SENSE ) x
0.0025)/(50mV x 0.0025)
2mV < (V IN - V SENSE ) < 50mV
(0 N C P T A P +25 N C),
% error = (I CSOUT - (V IN - V SENSE ) x
-2.34
-1.18
+2.3
+0.9
% of
50mV
Full-Scale
Output
0.0025)/(50mV x 0.0025)
Output Common-Mode Range
CSOUT voltage range
0
2.5
V
POWER-GOOD
PG Delay
t dPG
50
ms
PG Threshold Rising
PG Threshold Hysteresis
V THRPG
V IN - V SOURCE falling
100
100
mV
mV
3
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