Datasheet

DS2746 Low-Cost 2-Wire Battery Monitor
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ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground -0.3V to +6V
Operating Temperature Range
-40°C to +85°C
Storage Temperature Range
-55°C to +125°C
Soldering Temperature
See IPC/JEDECJ-STD-020A
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(V
DD
= 2.5V to 4.5V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
DD
(Note 1) +2.5 +4.5 V
Data I/O Pins SCL, SDA (Note 1) -0.3 +5.5 V
Programmable I/O Pin PIO (Note 1) -0.3 +5.5 V
V
IN
, AIN0, AIN1 Pin
V
IN
, AIN0,
AIN1
(Note 1) -0.3 V
DD
+ 0.3 V
DC ELECTRICAL CHARACTERISTICS
(V
DD
= 2.5V to 4.5V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
70 100
Active Current I
ACTIVE
V
DD
= 4.5V 105
A
V
DD
= 2.0V,
SCL, SDA = Vss
0.5 1.0
Sleep-Mode Current I
SLEEP
SCL, SDA = Vss 1 3
A
Current Resolution I
LSB
6.25
V
Current Full-Scale Magnitude I
FS
(Note 1) ±51.2 mV
Current Offset I
OERR
(Note 2) -12.5 +12.5
V
Current Gain Error I
GERR
(Note 11) -1.5 +1.5
% of
reading
V
DD
= 3.6V at +25°C -1 +1
T
A
= 0C to +70C
-2 +2
%
Timebase Accuracy t
ERR
T
A
= -20C to +70C
-3 +3
V
DD
= V
IN
= 3.6V -10 +10
Voltage Error V
GERR
-20 +20
mV
Input Resistance
V
IN
, AIN0, AIN1
R
IN
15 MΩ
AIN0, AIN1 Error AIN
GERR
(Note 10) -8 +8 LSB
V
OUT
Output Drive I
O
= 1mA V
DD
-0.1 V
V
OUT
Precharge Time t
PRE
V
ODIS
bit = 0 13.3 14.2 ms
Input Logic High:
SCL, SDA
V
IH
(Note 1) 1.5 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: I
PD
V
DD
= 4.2V, 0.2
A