
LTC4261/LTC4261-2
4
42612fd
For more information www.linear.com/LTC4261
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Timer
V
TMR(H)
TMR Pin High Threshold V
TMR
Rising
l
2.43 2.56 2.69 V
V
TMR(L)
TMR Pin Low Threshold V
TMR
Falling
l
40 75 110 mV
I
TMR(UP)
TMR Pin Pull-Up Current Turn-On and Auto-Retry (Except OC) Delays,
V
TMR
= 0.2V
l
–7 –10 –13 µA
Power Good, PGI Check and OC Auto-Retry
Delays, V
TMR
= 0.2V
l
–3.5 –5 –6.5 µA
I
TMR(DN)
TMR Pin Pull-Down Current Delays Except PGI Check or OC Auto-Retry,
V
TMR
= 2.56V
l
6 12 20 mA
PGI Check and OC Auto-Retry Delays,
V
TRM
= 2.56V
l
3 5 7 µA
Output Pins
V
PWRGD
PG, PGIO Pins Output Low I
PG
, I
PGIO
= 3mA
I
PG
, I
PGIO
= 500µA
l
l
0.8
0.15
1.6
0.4
V
V
I
PWRGD
PG, PGIO Pins Leakage Current PG, PGIO = 80V
l
0 ±10 µA
ADC
Resolution (No Missing Codes) (Note 5)
l
10 Bits
INL Integral Nonlinearity SENSE
l
±0.5 ±2.5 LSB
ADIN2/OV, ADIN
l
±0.25 ±1.25 LSB
V
OS
Offset Error SENSE
l
±1.75 LSB
ADIN2/OV, ADIN
l
±1.25 LSB
Full-Scale Voltage SENSE
l
62.8 64 65.2 mV
ADIN2/OV, ADIN
l
2.514 2.560 2.606 V
Total Unadjused Error SENSE
l
±1.8 %
ADIN2/OV, ADIN
l
±1.6 %
Conversion Rate
l
5.5 7.3 9 Hz
R
ADIN
ADIN, ADIN2 Pins Input Resistance ADIN, ADIN2 = 1.28V
l
2 10
MW
I
ADIN
ADIN, ADIN2 Pins Input Current ADIN, ADIN2 = 2.56V
l
0 ±2 µA
I
2
C Interface
V
ADR(H)
ADR0, ADR1 Input High Threshold
l
INTV
CC
– 0.8
INTV
CC
– 0.5
INTV
CC
– 0.3
V
V
ADR(L)
ADR0, ADR1 Input Low Threshold
l
0.3 0.5 0.8 V
I
ADR(IN)
ADR0, ADR1 Input Current ADR0, ADR1 = 0V, 5V
l
±80 µA
ADR0, ADR1 = 0.8V, (INTV
CC
– 0.8V)
l
±10 µA
V
ALERT(OL)
ALERT Pin Output Low Voltage I
ALERT
= 4mA
l
0.2 0.4 V
V
SDAO(OL)
SDAO Pin Output Low Voltage I
SDAO
= 4mA
l
0.2 0.4 V
I
SDAO,ALERT(IN)
SDAO, ALERT Input Current SDAO, ALERT = 5V
l
0 ±5 µA
V
SDAI,SCL(TH)
SDAI, SCL Input Threshold
l
1.6 1.8 2 V
I
SDAI,SCL(IN)
SDAI, SCL Input Current SDAI, SCL = 5V
l
0 ±2 µA
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at I
IN
= 5mA, T
A
= 25°C. (Note 2)
ELECTRICAL CHARACTERISTICS
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