Datasheet

16
bq2050
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 1.44 1.47 1.50 V SB
V
EDV1
First empty warning 1.49 1.52 1.55 V SB
V
SRO
SR sense range -300 - 2000 mV SR, V
SR
+ V
OS
V
SRQ
Valid charge 210 - -
µ
VV
SR
+ V
OS
(see note)
V
SRD
Valid discharge - - -200
µ
VV
SR
+ V
OS
(see note)
V
MCV
Maximum single-cell voltage 2.20 2.25 2.30 V SB
Note: V
OS
is affected by PC board layout. Proper layout guidelines should be followed for optimal performance.
See “Layout Considerations.”
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 bq2050 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 operation
should be limited to the Recommended DC Operating Conditions detailed in this data sheet. Exposure to con
-
ditions beyond the operational limits for extended periods of time may affect device reliability.