DS2741N Просмотр технического описания (PDF) - Maxim Integrated

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DS2741N

Current Monitor and Accumulator with Integrated Sense Resistor

Maxim Integrated 

Current Monitor and Accumulator with

Integrated Sense Resistor

ABSOLUTE MAXIMUM RATINGS

Voltage Range on VCC Relative to GND ...............-0.5V to +6.0V

Voltage Range on SDA, SCL,

RS+, RS-, SLP Relative to GND.....-0.5V to (VCC + 0.5V), not to

exceed +6.0V

Continuous Internal Sense Resistor Current ......................±2.7A

Pulsed Internal Sense Resistor

Current ..................................±10A for <100µs/s, <1000 pulses

Operating Temperature Range ...........................-20°C to +70°C

Storage Temperature Range .............................-55°C to +125°C

Soldering Temperature...........................Refer to the IPC/JEDEC

J-STD-020 Specification.

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

(TA = -20°C to +70°C.)

PARAMETER

SYMBOL

CONDITIONS

Supply Voltage

Input Logic-High: SCL, SDA

Input Logic-Low: SCL, SDA

VCC

(Note 1)

VIH

VIL

Input Logic-High: SLP

VIH

Input Logic-Low: SLP

Power-Up Ramp Time from

0V to VCCMIN

VIL

tRAMP

MIN

2.5

1.5

0.7 x

VCC

TYP

MAX

4.5

0.4

UNITS

V

V

V

V

0.3 x

V

VCC

25

ms

DC ELECTRICAL CHARACTERISTICS

(2.5V ≤ VCC ≤ 4.5V, TA = -20°C to +70°C.)

PARAMETER

SYMBOL

CONDITIONS

Active Current

Sleep-Mode Current

Output Logic-Low: SDA

IACTIVE

ISLEEP

VOL

SLP = SCL = SDA = VCC

SLP = 0V

IOL = 4mA (Note 1)

Internal Current-Sense Resistor

Value

RSNS +25°C

Current Resolution

ILSB

Current Full-Scale Magnitude

IFS

(Note 2)

Current-Sense Accuracy at +25°C

ATL

ISENSE at 1.5A

Current-Sense Accuracy from

0°C to +70°C

ATL

ISENSE at 1.5A

Current Sampling Rate

Accumulator Resolution

Internal Time-Base Accuracy

Current-Sense Offset

tCSR

qCA

tERR1

tERR2

(Note 3)

(Note 4)

(Note 4)

Measured with RS+ and RS- shorted

MIN TYP MAX UNITS

60

90

μA

1

2

μA

0.4

V

38

45

m

2.64

mA

2.54

2.7

A

±1

±3

%

±2

±5

%

200

μs

0.247

mAh

±1

±3

%

±6.5

-20

+20

mA

2 _______________________________________________________________________________________

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