DS2751 查看數據表（PDF） - Maxim Integrated
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DS2751 Datasheet PDF : 19 Pages
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EEPROM RELIABILITY SPECIFICATION
(TA = 2.5V £ VDD £ 5.5V, -20°C to +70°C.)
PARAMETER
SYMBOL CONDITIONS
Copy to EEPROM Time tEEC
EEPROM Copy
Endurance
NEEC (Note 12)
DS2751
MIN
25,000
TYP
2
MAX
10
UNITS
ms
cycles
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
Note 11:
Note 12:
All voltages are referenced to VSS.
Operating VIN > 4.5V relative to VSS, or VIN > VDD + 0.3V can induce errors in voltage,
temperature, or current measurements.
Self heating due to output pin loading and sense resistor power dissipation can alter the
reading from ambient conditions.
Although the Voltage Register is large enough to report values larger than 4.75V, the internal
compensation for circuit variations can reduce the maximum reportable voltage to as low as
4.75V.
Voltage offset measurement is with respect to 4.35V at +25°C.
Internal current-sense resistor configuration.
External current-sense resistor configuration.
The Current Register supports measurement magnitudes up to 2.56A using the internal sense-
resistor option and 64mV with the external resistor option. Compensation of the internal
sense-resistor value for process and temperature variation may reduce the maximum
reportable magnitude to 1.9A.
Current offset error null to ±1 LSb typically requires a one time 3.5s in-system calibration by
user.
Current gain-error specification applies to gain error in converting the voltage difference at
IS1 and IS2, and excludes any error remaining after the DS2751 compensates for the internal
sense-resistor’s temperature coefficient of 3700ppm/°C to an accuracy of ±500ppm/°C. The
DS2751 does not compensate for external sense resistor characteristics, and any error terms
arising from the use of an external sense resistor should be taken into account when
calculating total current measurement error.
Typical value for tERR valid at 3.6V and +25°C.
Four year data retention at +70°C.
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