Manual

DS2741
Current Monitor and Accumulator with
Integrated Sense Resistor
4 _______________________________________________________________________________________
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
DS2741 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (μA)
4.03.53.0
10
20
30
40
50
60
70
0
2.5 4.5
SLP = SDA = SCL = V
CC
T
A
= +25°C
SLEEP-MODE CURRENT
vs. SUPPLY VOLTAGE
DS2741 toc02
SUPPLY VOLTAGE (V)
SLEEP-MODE CURRENT (μA)
4.03.53.0
0.5
1.0
1.5
2.0
0
2.5 4.5
SDA = SCL = V
CC
SLP = GND
T
A
= +25°C
SUPPLY CURRENT
vs. TEMPERATURE
DS2741 toc03
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
605040302010-10 0
10
20
30
40
50
60
70
0
-20 70
SLP = SDA = SCL = V
CC
= +3.5V
SUPPLY CURRENT
vs. SCL FREQUENCY
DS2741 toc04
SCL FREQUENCY (kHz)
SUPPLY CURRENT (μA)
35030025020015010050
10
20
30
40
50
60
70
0
0 400
SLP = SDA = SCL = V
CC
= +3.5V
T
A
= +25°C
DISTRIBUTION OF CURRENT-SENSE
OFFSET
DS2741 toc05
CURRENT-SENSE OFFSET (mA)
POPULATION OF PARTS
-1 2 5 8-7 -4
10
20
30
40
50
60
70
80
90
0
-10
247 SAMPLES
INITIAL CURRENT-SENSE ACCURACY
DISTRIBUTION
DS2741 toc06
CURRENT-SENSE ACCURACY (%)
POPULATION OF PARTS
1.61.00.4-0.2-0.8-1.4
10
20
30
40
50
60
0
-2.0
I
SENSE
AT 1.5A
247 SAMPLES
Typical Operating Characteristics
(V
CC
= +2.5V to +4.5V, T
A
= -20°C to +70°C, unless otherwise noted.)