LTC4260
4
4260fc
For more information www.linear.com/LTC4260
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25癈. V
DD
= 48V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Timer
V
TIMER(H)
TIMER Pin High Threshold
V
TIMER
Rising
l
1.2
1.235
1.28
V
V
TIMER(L)
TIMER Pin Low Threshold
V
TIMER
Falling
l
0.1
0.2
0.3
V
I
TIMER(UP)
TIMER Pin Pull-Up Current
V
TIMER
= 0V
l
80
100
120
礎
I
TIMER(DN)
TIMER Pin Pull-Down Current
V
TIMER
= 1.3V
l
1.4
2
2.6
礎
I
TIMER(RATIO)
TIMER Pin Current Ratio
I
TIMER(DN)
/I
TIMER(UP)
l
1.6
2
2.7
%
AC Parameters
t
PLH(GATE)
Input High (ON) to GATE High
Propagation Delay
C
GATE
= 1pF
l
1
3
祍
t
PHL(GATE)
Input High (OV, BD_PRST), Input Low
(ON, UV) to GATE Low Propagation Delay
C
GATE
= 1pF
l
0.5
3
祍
t
PHL(SENSE)
(V
DD
SENSE) High to GATE Low
V
DD
SENSE = 200mV, C
GATE
= 10nF
l
0.4
1
祍
ADC
Resolution (No Missing Codes)
(Note 4)
l
8
Bits
Integral Nonlinearity
V
DD
SENSE (Note 5)
SOURCE
ADIN
l
l
l
?.5
?.5
?.5
?
?.25
?.25
LSB
LSB
LSB
Offset Error
V
DD
SENSE
SOURCE
ADIN
l
l
l
?.5
?
?
LSB
LSB
LSB
Full Scale Error
(Note 6)
l
?
LSB
Total Unadjusted Error
(Note 6)
l
?
LSB
Full Scale Voltage (Code 255)
V
DD
SENSE (Note 6)
SOURCE
ADIN
l
l
l
75
100
2.50
76.5
102
2.55
78
104
2.60
mV
V
V
Conversion Rate
10
Hz
I
2
C Interface
V
ADR(H)
ADR0 to ADR2 Input High Voltage
Threshold
INTV
CC
0.6
INTV
CC
0.45
INTV
CC
0.25
V
V
ADR(L)
ADR0 to ADR2 Input Low Voltage
Threshold
0.25
0.45
0.65
V
I
ADR(IN)
ADR0 to ADR2 Input Current
ADR0 to ADR2 = 0V, 5.5V
l
80
80
礎
V
SDAI,SCL(TH)
SDAI, SCL Input Threshold
l
1.6
1.8
2
V
I
SDAI,SCL(IN)
SDAI, SCL Input Current
SCL, SDAI = 5V
l
0
?
礎
V
SDAO(OL)
SDAO Output Low Voltage
I
SDAO
= 5mA
l
0.2
0.4
V
V
ALERT(OL)
ALERT Output Low Voltage
I
ALERT
= 5mA
l
0.2
0.4
V
I
SDAO,ALERT(IN)
SDAO, ALERT Input Current
SDAO, ALERT = 5V
l
0
?
礎