Datasheet

28
bq2040
Recommended DC Operating Conditions (T
A
= T
OPR
)
Symbol Parameter Minimum Typical Maximum Unit Notes
V
CC
Supply voltage 3.0 4.25 6.5 V
V
CC
excursion from < 2.0V to
≥
3.0V initializes the unit.
V
REF
Reference at 25°C 5.7 6.0 6.3 V I
REF
= 5
µ
A
Reference at -40°C to +85°C 4.5 - 7.5 V I
REF
= 5
µ
A
R
REF
Reference input impedance 2.0 5.0 - M
Ω
V
REF
= 3V
I
CC
Normal operation
- 90 135
µ
AV
CC
= 3.0V
- 120 180
µ
AV
CC
= 4.25V
- 170 250
µ
AV
CC
= 5.5V
V
SB
Battery input 0 - V
CC
V
R
SBmax
SB input impedance 10 - - M
Ω
0 < V
SB
< V
CC
I
DISP
DISP input leakage - - 5
µ
AV
DISP
= V
SS
I
LVOUT
V
OUT
output leakage -0.2 - 0.2
µ
A EEPROM off
V
SR
Sense resistor input -0.3 - 2.0 V
V
SR
<V
SS
= discharge;
V
SR
> V
SS
= charge
R
SR
SR input impedance 10 - - M
Ω
-200mV < V
SR
< V
CC
V
IH
Logic input high
0.5 ∗ V
CC
-
V
CC
V ESCL, ESDA
1.4 - 5.5 V SMBC, SMBD
V
IL
Logic input low
0-
0.3 ∗ V
CC
V ESCL, ESDA
-0.5 0.6 V SMBC, SMBD
V
OL
Data, clock output low - - 0.4 V I
OL
=350
µ
A, SMBC, SMBD
I
OL
Sink current 100 - 350
µ
AV
OL
≤
0.4V, SMBC, SMBD
V
OLSL
LED
X
output low, low V
CC
- 0.1 - V
V
CC
= 3V, I
OLS
≤
1.75mA
LED
1
–LED
4
V
OLSH
LED
X
output low, high V
CC
- 0.4 - V
V
CC
= 6.5V, I
OLS
≤
11.0mA
LED
1
–LED
4
V
OHVL
V
OUT
output, low V
CC
V
CC
- 0.3 - - V V
CC
= 3V, I
VOUT
= -5.25mA
V
OHVH
V
OUT
output, high V
CC
V
CC
- 0.6 - - V V
CC
= 6.5V, I
VOUT
= -33.0mA
I
VOUT
V
OUT
source current -33 - - mA At V
OHVH
= V
CC
- 0.6V
I
OLS
LED
X
sink current 11.0 - mA At V
OLSH
= 0.4V
Note: All voltages relative to V
SS
.