DS2741 Maxim Integrated Products, DS2741 Datasheet - Page 3

• Manufacturer Part Number: DS2741
• Description: Current Monitor and Accumulator
• Manufacturer: Maxim Integrated Products

TEMPERATURE SENSOR CHARACTERISTICS
(V
AC ELECTRICAL CHARACTERISTICS: I
(2.5V ≤ V
Note 1: All voltages are referenced to GND. Currents entering the IC are specified positive and currents exiting the IC are negative.
Note 2: Compensation of the internal sense resistor value for initial tolerance and temperature coefficient of -20°C to +70°C can
Note 3: Current sampling ceases for 2.5ms every 144ms to allow the ADC to measure temperature.
Note 4: Typical value for t
Note 5: Interface timing shown is for fast-mode (400kHz) operation. This device is also backward compatible with standard-mode
Note 6: C
Temperature Error
SCL Clock Frequency
Bus Free Time Between STOP
and START Conditions
Hold Time (Repeated) START
Condition
Low Period of SCL
High Period of SCL
Data Hold Time
Data Setup Time
START Setup Time
SDA and SCL Rise Time
SDA and SCL Fall Time
STOP Setup Time
SDA and SCL Capacitive
Loading
CC
= +2.5V to +4.5V, T
reduce the maximum reportable magnitude to 2.5A.
specified for -20°C to +70°C.
I
CC
2
PARAMETER
PARAMETER
B
C timing.
—Total capacitance of one bus line in pF; timing referenced to 0.1 x V
≤ 4.5V, T
_______________________________________________________________________________________
A
= -20°C to +70°C, timing referenced to V
A
Current Monitor and Accumulator with
ERR1
= -20°C to +70°C, unless otherwise noted.)
is specified at 3.6V and +25°C, max value is specified for 0°C to +50°C. Max value for t
SYMBOL
SYMBOL
t
t
t
t
t
HD:STA
HD:DAT
SU:DAT
SU:STA
SU:STO
t
t
f
t
HIGH
LOW
SCL
BUF
C
t
t
R
F
B
(Note 5)
(Note 6)
(Note 6)
(Note 6)
2
Integrated Sense Resistor
C INTERFACE
CONDITIONS
IL(MAX)
CONDITIONS
and V
IH(MIN)
CC
. See Figure 4.)
and 0.9 x V
0.1C
0.1C
CC
20 +
20 +
MIN
MIN
100
1.3
0.6
1.3
0.6
0.6
0.6
0
0
.
B
B
TYP
TYP
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MAX
MAX
400
300
300
400
0.9
±5
ERR2
UNITS
UNITS
is
kHz
°C
pF
μs
μs
μs
μs
μs
ns
μs
ns
ns
μs
3