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LTC2970IUFD Datasheet(PDF) 6 Page - Linear Technology

Part # LTC2970IUFD
Description  Dual I2C Power Supply Monitor and
Download  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC2970IUFD Datasheet(HTML) 6 Page - Linear Technology

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LTC2970/LTC2970-1
6
29701fc
29701 TD
SDA
SCL
START
CONDITION
tBUF
tr
tSU;STO
STOP
CONDITION
tHD;STA
tSU;DAT
tSU;STA
REPEATED START
CONDITION
tHIGH
tHD;DAT
tSP
tHD;STA
tLOW
tf
tf
START
CONDITION
tr
The I2C Bus Specification
Note 4: Integral nonlinearity (INL) is defined as the deviation of a code
from a straight line passing through the actual endpoints (0V and 6V)
of the transfer curve. The deviation is measured from the center of the
quantization band.
Note 5: Nonlinearity is defined from the first code that is greater than or
equal to the maximum offset specification to code 255 (full-scale).
Note 6: Maximum capacitive load, CB, for SCL and SDA is 400pF. Data and
clock risetime (tr) and falltime (tf) are: (20 + 0.1 • CB)(ns) < tr < 300ns and
(20 + 0.1 • CB)(ns) < tf < 300ns. CB = capacitance of one bus line in pF.
SCL and SDA external pull-up voltage, VIO, is 3V < VIO < 5.5V.
Note 7: This specification is guaranteed by design.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified.
Note 3: TUE (%) is defined as:
%
(•
/
)
Gain Error
INL
V LSB V
V
OS
IN
+
+
500
100
μ
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tSETUP_TRACK Tracking IDAC Disconnect Delay
LTC2970-1 Only: After the tracking
algorithm asserts CPIO_CFG high, the
LTC2970-1 will wait this amount of time
before starting to decrement Chn_a_
delay_track[9:0]. Used while tracking
power supplies off.
32
ms
tDEC_TRACK
Tracking IDAC Decrement Rate
LTC2970-1 Only: The LTC2970-1 changes
Chn_a_delay_track[9:0] at this rate.
88
μs/LSB
The denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C.
ELECTRICAL CHARACTERISTICS
TIMING DIAGRAM


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