Datasheet

DS2786 Stand-Alone OCV-Based Fuel Gauge
3 of 22
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
OUT
Precharge Time t
PRE
13.2 13.7 14.2 ms
Temperature Error T
ERR
-3 +3 °C
Input Logic High:
SCL, SDA
V
IH
(Note 1) 1.4 V
Input Logic Low:
SCL, SDA
V
IL
(Note 1) 0.6 V
Output Logic Low:
SDA
V
OL
I
OL
= 4mA (Note 1) 0.4 V
Pulldown Current:
SCL, SDA
I
PD
V
DD
= 4.2V,
V
PIN
= 0.4V
0.2 1.0
A
V
PROG
Pulldown R
VPROG
20 kΩ
Input Capacitance:
SCL, SDA
C
BUS
50 pF
Bus Low Timeout t
SLEEP
(Note 3) 1.5 2.2 S
EEPROM Programming
Voltage
V
PROG
14 15 V
EEPROM Programming
Current
I
PROG
2 mA
EEPROM Programming
Time
t
PROG
3.1 14 ms
EEPROM Copy
Endurance
100 writes
ELECTRICAL CHARACTERISTICS: 2-WIRE INTERFACE
(2.5V  V
DD
 4.5V, T
A
= -20C to +70C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SCL Clock Frequency
f
SCL
(Note 4) 0 400 kHz
Bus Free Time Between
a STOP and START
Condition
t
BUF
1.3 µs
Hold Time (Repeated)
START Condition
t
HD:STA
(Note 5) 0.6 µs
Low Period of SCL Clock
t
LOW
1.3 µs
High Period of SCL Clock
t
HIGH
0.6 µs
Setup Time for a
Repeated
START Condition
t
SU:STA
0.6 µs
Data Hold Time
t
HD:DAT
(Notes 6, 7) 0 0.9 µs
Data Setup Time
t
SU:DAT
(Note 6) 100 ns
Rise Time of Both SDA
and SCL Signals
t
R
20 + 0.1C
B
300 ns
Fall Time of Both SDA
and SCL Signals
t
F
20 + 0.1C
B
300 ns
Setup Time for STOP
Condition
t
SU:STO
0.6 µs