DS2760AX datasheet(25/25 Pages) MAXIM

25 / 25 page

DS2760

ELECTRICAL CHARACTERISTICS:

1-WIRE INTERFACE

(-20

°C to +70°C; 2.5V £ VDD £ 5.5V)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Time Slot

tSLOT

120

Recovery Time

tREC

Write 0 Low Time

tLOW0

120

Write 1 Low Time

tLOW1

Read Data Valid

tRDV

Reset Time High

tRSTH

480

Reset Time Low

tRSTL

480

960

Presence Detect High

tPDH

Presence Detect Low

tPDL

240

SWAP timing pulse width

tSWL

0.2

120

SWAP timing pulse

falling edge to DC release

tSWOFF

SWAP timing pulse rising

edge to DC engage

tSWON

DQ Capacitance

CDQ

EEPROM RELIABILITY SPECIFICATION

(-20

°C to +70°C; 2.5V £ VDD £ 5.5V)

PARAMETER

SYMBOL

MIN

TYP

MAX

UNITS

NOTES

Copy to EEPROM Time

tEEC

EEPROM Copy Endurance

NEEC

25000

cycles

NOTES

1) All voltages are referenced to VSS.

2) See “Ordering Information” section of datasheet to determine corresponding part number for each VOV value.

3) Internal current sense resistor configuration.

4) External current sense resistor configuration.

5) Self heating due to output pin loading and sense resistor power dissipation can alter the reading from ambient conditions.

6) Voltage offset measurement is with respect to VOV at +25°C.

7) 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 can

reduce the maximum reportable magnitude to 1.9A.

8) Current offset error null to ±1LSB typically requires 3.5s in-system calibration by user.

9) Current gain error specification applies to gain error in converting the voltage difference at IS1 and IS2, and excludes any

error remaining after the DS2760 compensates for the internal sense resistor’s temperature coefficient of 3700ppm/

°C to

an accuracy of

±500ppm/°C. The DS2760 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.

10) Typical value for tERR is at 3.6V and +25

°C.

11) 4-year data retention at +70

°C.

12) Typical load capacitance on

DC and CC is 1000pF.

13) Test conditions are PLS = 4.1V, VDD = 2.5V. Maximum current for conditions of PLS = 15V, VDD =0V is 10mA.

14) Error at time of shipment from Dallas Semiconductor is 3% max. Board mounting processes may cause the current gain

error to widen to as much as 10% for devices with the internal sense resistor option. Contact factory for on-board

recalibration procedure for devices with the internal sense resistor option to improve accuracy.

DS2760AX Datasheet(PDF) 25 Page - Maxim Integrated Products

DS2760AX Datasheet(HTML) 25 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Datasheet Download

Link URL