LTC4280
4
4280f
ELECTRICAL CHARACTERISTICS
The l denotes the speci cations which apply over the full operating
temperature range, otherwise speci cations are at T
A
= 25癈. V
DD
= 12V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Other Pin Functions
V
GPIO(OL)
GPIO Pin Output Low Voltage
I
GPIO
= 5mA
l
0.25
0.5
V
I
GPIO(OH)
GPIO Pin Input Leakage Current
V
GPIO
= 15V
l
0
?
糀
I
SOURCE
SOURCE Pin Input Current
SOURCE = 15V
l
40
80
120
糀
t
P(GATE)
Input (ON, OV, UV, EN) to GATE Off
Propagation Delay
l
3
5
約
t
D(GATE)
Turn-On Delay
ON
UV, OV, EN
Overcurrent Auto-Retry
l
l
l
50
2.5
1
100
5
2
150
75
約
ms
s
V
TIMERL(TH)
Timer Low Threshold
l
0.17
0.2
0.23
V
V
TIMERH(TH)
Timer High Threshold
l
1.2
1.235
1.26
V
I
TIMER(UP)
TIMER Pin Pull-Up Current
l
80
100
120
糀
I
TIMER(DOWN)
TIMER Pin Pulldown Current for OC Auto-Retry
l
1.4
2
2.6
糀
I
TIMER(UP/DOWN)
TIMER Current Up/Down Ratio
l
40
50
60
V
FILTER(TH)
FILTER High Threshold
l
1.2
1.235
1.27
V
I
FILTER
FILTER Timer Current
During OC FILTER = 0.5V
l
7.5
10
12.5
糀
After OC FILTER = 0.5V
l
1
2
3.5
糀
During Startup FILTER = 0.5V
l
.03
0.6
1.2
mA
ADC
RES
Resolution (No Missing Codes)
l
8
Bits
INL
Integral Nonlinearity
V
DD
SENSE (Note 5)
SOURCE
ADIN
l
l
l
2
1.25
1.25
0.5
0.2
0.2
2
1.25
1.25
LSB
LSB
LSB
V
OS
Offset Error (Note 4)
V
DD
SENSE
SOURCE
ADIN
l
l
l
?.0
?.0
?.0
LSB
LSB
LSB
TUE
Total Unadjusted Error
V
DD
SENSE
SOURCE
ADIN
l
l
l
?.5
?.0
?.0
LSB
LSB
LSB
FSE
Full-Scale Error
V
DD
SENSE
SOURCE
ADIN
l
l
l
?.5
?.0
?.0
LSB
LSB
LSB
V
FS
Full-Scale Voltage (255 " V
LSB
)
V
DD
SENSE
SOURCE
ADIN
l
l
l
37.625
15.14
1.205
38.45
15.44
1.23
39.275
15.74
1.255
mV
V
V
R
ADIN
ADIN Pin Sampling Resistance
V
ADIN
= 1.28V
l
1
2
M?/DIV>
I
ADIN
ADIN Pin Input Current
V
ADIN
= 1.28V
l
0
?.1
糀
Conversion Rate
10
Hz
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