BQ2112 Datasheet, PDF (5/7 Pages) Texas Instruments – NiCd or NiMH Gas Gauge Module with Slow-Charge Control

bq2112
Absolute Maximum Ratings
Symbol
Parameter
Minimum Maximum Unit
Conditions
V_CC
Relative to V_SS
-0.3
All other pins Relative to VSS
-0.3
P_SR
Continuous sense resis-
-
tor power dissipation
-
I_CHG
Continuous charge/
discharge current
-
+7.0
V bq2012
+7.0
V bq2012
3
W Thru-hole sense resistor
1
W Surface mount sense resistor
3.0
A
T_OPR
T_STR
Operating temperature
0
Storage temperature
-40
+70
°C Commercial
+85
°C
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.
DC Electrical Characteristics (TA = TOPR)
Symbol
Parameter
Minimum
Typical
Maximum
Unit Conditions/Notes
NumCell
Number of series cells in bat-
tery pack
4
-
12
-
BAT+
Positive terminal of pack
GND NumCell * 1.2V NumCell * 1.8V V
BAT-
Negative terminal of pack
GND -
0.3
-
GND+2.0
V
I_CC
Supply current at BAT+ ter-
minal (no external loads)
-
200
R_DQ
Internal pull-down
500k
-
IOL
Open-drain sink current DQ,
EMPTY, CHG
-
-
300
µA
-
Ω¹
5.0
mA¹
V_OL
Open-drain output low,
DQ, EMPTY, CHG
-
-
V_IHDQ DQ input high
2.5
-
V_ILDQ
DQ input low
-
-
V_OS
Voltage offset
-
-
0.5
V¹ IOL < 5mA
-
V¹
0.8
V¹
150
µ V¹
Note:
1. Characterized on PCB, IC 100% tested.
5