Rainbow-electronics DS2761 Manual de usuario descargar pdf (Pagina 24)

DS2761

24 of 24

ELECTRICAL CHARACTERISTICS:

1-WIRE INTERFACE (-20°C to +70°C, 2.5V £ V

£ 5.5V)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Time Slot t

SLOT

60 120 ms

Recovery Time t

REC

1 ms

Write 0 Low Time t

LOW0

60 120 ms

Write 1 Low Time t

LOW1

115ms

Read Data Valid t

RDV

15 ms

Reset Time High t

RSTH

480 ms

Reset Time Low t

RSTL

480 960 ms

Presence Detect High t

PDH

15 60 ms

Presence Detect Low t

PDL

60 240 ms

SWAP Timing Pulse Width t

SWL

0.2 120 ms

SWAP Timing Pulse Falling

Edge to

DC Release

SWOFF

SWAP Timing Pulse Rising Edge

DC Engage

SWON

DQ Capacitance C

60 pF

EEPROM RELIABILITY SPECIFICATION (-20°C to +70°C, 2.5V £ V

£ 5.5V)

PARAMETER SYMBOL MIN TYP MAX UNITS NOTES

Copy to EEPROM Time t

EEC

210 ms

EEPROM Copy Endurance N

EEC

25000 cycles 11

NOTES

1) All voltages are referenced to V

2) See the

Ordering Information section to determine the corresponding part number for each V

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 V

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 DS2761 compensates for the internal sense resistor’s

temperature coefficient of 3700ppm/

°C to an accuracy of ±500ppm/°C. The DS2761 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 t

ERR

is at 3.6V and +25°C.

11) Four year data retention at +70

°C.

12) Typical load capacitance on

DC and CC is 1000pF.

13) Test conditions are PLS = 4.1V, V

= 2.5V. Maximum current for conditions of PLS = 15V,

= 0V is 10mA.

1 2 ... 19 20 21 22 23 24

Comentarios a estos manuales

Sin comentarios

Rainbow-electronics DS2761 Manual de usuario Pagina 24

Comentarios a estos manuales

Relacionado con productos y manuales para Panel De Control Rainbow-electronics DS2761