Datasheet

ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
bq76PL102
www.ti.com .......................................................................................................................................... SLUS887A – DECEMBER 2008 – REVISED OCTOBER 2009
over operating free-air temperature range (unless otherwise noted)
(1)
VALUE UNIT
T
A
Operating free-air temperature (ambient) – 40 to 85 ° C
T
stg
Storage temperature – 65 to 150 ° C
Voltage on SDO Note: not VSS-referenced (V1 – 0.5) to (V2 + 0.5)
(2)
V
Voltage on SDI Limited by lower cell voltage (VSS – 0.5) to (V1 + 0.5)
(2)
V
Voltage on V1 (V1 – VSS)
(2)
Maximum cell voltage – 0.5 to 5 V
Voltage on V2 (V2 – V1)
(2)
Maximum cell voltage (not VSS-referenced) – 0.5 to 5 V
Voltage on XT1 or XT2 With respect to VSS (VSS – 0.5) to (V1 + 0.5) V
JEDEC, JESD22-A114 human-body model, R = 1500 Ω ,
ESD tolerance 2 kV
C = 100 pF
(1) 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 under Recommended Operating
Conditions is note implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) Cell numbering convention is from most negative (Cell 1) to most positive (Cell 2) and is locally referenced.
T
A
= – 40 ° C to 85 ° C (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DC CHARACTERISTICS
Two-cell configuration 2.5 3.6 4.5
V
CELL
(1) (
Cell voltage input V
2)
One-cell configuration
(2)
2.8 3.6 4.5
I
DD
Operating current (cell 2) Measuring, reporting, or balancing 250 350 µ A
I
STBY
Standby-mode current (cell 2) Idle 32 50 µ A
I
SHIP
Ship-mode current (cell 2) 10 30 µ A
I
UVM
(3)
Cell extreme undervoltage-mode current V1 < 2.8 V 0.5 1 µ A
(cell 2)
V
Startup
Minimum startup voltage, V1 and V2 2.9 V
CELL VOLTAGE MEASUREMENT CHARACTERISTICS
V1 measurement range 2.75 4.5 V
V2 measurement range 2.75 4.5 V
Analog resolution < 1 mV
25 ° C ± 3 ± 7
Accuracy (after calibration) mV
0 ° C to 85 ° C ± 10
(4)
Measurement temperature coefficient +150 µ V/ ° C
Conversion time
(5)
80 ms
INTERNAL TEMPERATURE MEASUREMENT CHARACTERISTICS
Measurement range – 30 85 ° C
Resolution 0.1 ° C
Accuracy (after calibration)
(4)
0 ° C to 85 ° C ± 2 ° C
Temperature coefficient +1.28 mV/ ° C
(1) For single-cell operation, V1 must be connected to V2.
(2) During operation after power up
(3) Condition forced by bq78PL114
(4) With respect to voltage shift induced by temperature coefficient at 85C.
(5) Does not include delay due to internode timing delays.
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