Rainbow-electronics DS2745 Manual de usuario descargar pdf (Pagina 2)

DS2745 Low-Cost I

C Battery Monitor

2 of 14

ABSOLUTE MAXIMUM RATINGS*

Voltage on All Pins Relative to V

-0.3V to +6V

Operating Temperature Range -40°C to +85°C

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

Soldering Temperature See IPC/JEDECJ-STD-020A

* This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation

sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

RECOMMENDED DC OPERATING CONDITIONS

(2.5V £ V

£ 5.5V; T

= 0°C to +70°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V

(Note 1) 2.5 5.5 V

Serial Data I/O Pin SDA (Note 1) -0.3 +5.5 V

Serial Clock Pin SCL (Note 1) -0.3 +5.5 V

Programmable I/O Pin PIO (Note 1) -0.3 +5.5 V

VIN Pin V

(Note 1) -0.3 V

+0.3 V

DC ELECTRICAL CHARACTERISTICS

(2.5V £ V

£ 4.5V; T

= 0°C to +70°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

70 100

Active Current I

ACTIVE

= 5.5V 105

Sleep-Mode Current I

SLEEP

SCL = SDA = V

PIO = V

1 3

Current Resolution I

LSB

1.56

mV/R

Current Full-Scale

Magnitude

(Note 1) 51.2 mV/R

Current Offset I

OERR

(Note 2) - 7.82 + 12.5

mV/R

Current Gain Error I

GERR

- 1.0 +1.0

% of

reading

Accumulated Current

Resolution

6.25

mVh/R

Accumulated Current

Offset

OERR

SNS

= V

, (Notes 4, 5) - 188 + 0

µVh/R

per day

Voltage Resolution V

LSB

4.88 mV

Voltage Full-Scale V

0 4.992 V

Voltage Error V

GERR

(Note 12) - 25 + 25 mV

Temperature Resolution T

LSB

0.125 °C

Temperature Error T

ERR

- 3 + 3 ºC

Current Sample Clock

Frequency

SAMP

18.6 kHz

Timebase Accuracy t

ERR

= 3.8V, T

= +25°C ±1

1 2 3 4 5 6 7 ... 13 14

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Rainbow-electronics DS2745 Manual de usuario Pagina 2

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