Datasheet

16
bq2014
Absolute Maximum Ratings
Symbol Parameter Minimum Maximum Unit Notes
V
CC
Relative to V
SS
-0.3 7.0 V
All other pins Relative to V
SS
-0.3 7.0 V
REF Relative to V
SS
-0.3 8.5 V Current limited by R1 (see Figure 1)
V
SR
Relative to V
SS
-0.3 7.0 V
Minimum 100
Ω
series resistor should
be used to protect SR in case of a
shorted battery (see the bq2014 appli
-
cation note for details).
T
OPR
Operating tempera
-
ture
0 70 °C Commercial
Note: Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional opera
-
tion should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Expo
-
sure to conditions beyond the operational limits for extended periods of time may affect device reliability.
DC Voltage Thresholds (T
A
= T
OPR
; V = 3.0 to 6.5V)
Symbol Parameter Minimum Typical Maximum Unit Notes
V
EDVF
Final empty warning, default 0.92 0.95 0.98 V SB
V
EDV1
First empty warning, default 1.02 1.05 1.08 V SB
V
SR1
Discharge compensation threshold -120 -150 -180 mV SR
V
SRO
SR sense range -300 - 2000 mV SR
V
OVLD
Overload threshold -220 -250 -280 mV SR
V
SRQ
Valid charge 375 - -
µ
VV
SR
+ V
OS
(see note 1)
V
SRD
Valid discharge - - -300
µ
VV
SR
+ V
OS
(see note 1)
V
MCV
Maximum single-cell voltage 2.20 2.25 2.30 V SB
V
BR
Battery removed/replaced
- 0.1 0.25 V SB pulled low
2.20 2.25 2.30 V SB pulled high
Notes: 1. Default value; value set in DMF register. V
OS
is affected by PC board layout. Proper layout guide
lines should be followed for optimal performance.
2. To ensure correct threshold determination and proper operation, V
CC
> V
SB
+ 1.5V