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DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication

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EEPROM RELIABILITY SPECIFICATION

= 2.5V to 5.5V, T

= -20°C to +70°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

EEPROM Copy Time t

EEC

10 ms

EEPROM Copy Endurance N

EEC

= +50°C 50,000 cycles

ELECTRICAL CHARACTERISTICS: 1-Wire Interface, Standard

= 2.5V to 5.5V, T

= -20°C to +70°C, unless otherwise noted.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Time Slot t

SLOT

60 120

μs

Recovery Time t

REC

μs

Write-0 Low Time t

LOW0

60 120

μs

Write-1 Low Time t

LOW1

1 15

μs

Read-Data Valid t

RDV

μs

Reset-Time High t

RSTH

480

μs

Reset-Time Low t

RSTL

480 960

μs

Presence-Detect High t

PDH

15 60

μs

Presence-Detect Low t

PDL

60 240

μs

ELECTRICAL CHARACTERISTICS: 1-Wire Interface, Overdrive

= 2.5V to 5.5V, T

= -20°C to +70°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Time Slot t

SLOT

6 16

μs

Recovery Time t

REC

μs

Write-0 Low Time t

LOW0

6 16

μs

Write-1 Low Time t

LOW1

1 2

μs

Read-Data Valid t

RDV

μs

Reset-Time High t

RSTH

μs

Reset-Time Low t

RSTL

48 80

μs

Presence-Detect High t

PDH

2 6

μs

Presence-Detect Low t

PDL

8 24

μs

Note 1: All voltages are referenced to V

Note 2: Factory-calibrated accuracy. Higher accuracy can be achieved by in-system calibration by the user.

Note 3: Accumulation bias and offset bias registers set to 00h. NBEN bit set to 0.

Note 4: Parameters guaranteed by design.

Note 5: CP pin externally driven to 10V.

Note 6: Overvoltage and undervoltage delays (t

OVD

, t

UVD

) are reduced to 0s if the OV or UV condition is detected within 100ms of entering

Active mode.

Note 7: t

UVD

MIN determined by stepping the voltage on V

from V

+ 250mV to V

- 250mV.

1 2 3 4 5 6 7 8 9 ... 37 38

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