LTC2942CDCB-TRMPBF View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC2942CDCB-TRMPBF Datasheet PDF : 16 Pages
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LTC2942
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2)
SYMBOL PARAMETER
tHD,DATI(MIN) Minimum Data Hold Time Input
tHD,DATO Data Hold Time Output
tof
Data Output Fall Time
CONDITIONS
(Notes 7, 8)
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 pins are positive, all voltages are referenced to
GND unless otherwise specified
Note 3: ISUPPLY = ISENSE+ + ISENSE–
Note 4: The equivalent charge of an LSB in the accumulated charge
register depends on the value of RSENSE and the setting of the internal
prescaling factor M:
qLSB
= 0.085mAh • 50mΩ
RSENSE
•
M
128
See Choosing RSENSE and Choosing Coulomb Counter Prescaler M section
for more information. 1mAh = 3.6C (Coulombs).
MIN
TYP
l
l
0.3
l 20 + 0.1 • CB
MAX UNITS
0
μs
0.9
μs
300
ns
Note 5: Deviation of qLSB from its nominal value.
Note 6: The quantization step of the 14-bit ADC in voltage mode and
10-bit ADC in temperature mode is not to be mistaken with the LSB of the
combined 16-bit voltage registers (I, J) and 16-bit temperature registers
(M, N).
Note 7: CB = Capacitance of one bus line in pF (10pF ≤ CB ≤ 400pF). See
Voltage and Temperature Registers section for more information.
Note 8: Guaranteed by design, not subject to test.
TIMING DIAGRAM
SDA
SCL
tHD, STA
START
CONDITION
tSU, DAT
tHD, DATO,
tHD, DATI
tof
tSU, STA
tHD, STA
tSU, STO
tBUF
2942 F01
REPEATED START
CONDITION
Figure 1. Definition of Timing on I2C Bus
STOP
CONDITION
START
CONDITION
2942f
4
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