BQ27750 Datasheet, PDF (14/34 Pages) Texas Instruments – Impedance Track Battery Gas Gauge and Protection Solution for 1-Series Cell Li-Ion Battery Packs

bq27750
SLUSCM7 – JUNE 2017
Typical Characteristics (continued)
452
450
448
446
444
442
440
438
436
434
432
±40 ±20 0
20 40 60 80
Temperature (ƒC)
Threshold setting is 465 µs.
100
120
C014
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480
460
440
420
400
±40 ±20 0
20 40 60 80 100 120
Temperature (ƒC)
C015
Threshold setting is 465 µs (including internal delay).
Figure 12. Short Circuit Charge Current Delay Time vs.
Temperature
2.4984
2.49835
2.4983
2.49825
2.4982
2.49815
2.4981
2.49805
2.498
±40 ±20 0
20 40 60
Temperature (ƒC)
80 100 120
C016
Figure 14. V_CELL Measurement at 2.5-V vs. Temperature
4.24805
Figure 13. Short Circuit Discharge 1 Delay Time vs.
Temperature
3.49825
3.4982
3.49815
3.4981
3.49805
3.498
±40 ±20 0
20 40 60
Temperature (ƒC)
This is the V_CELL average for single cell.
80 100 120
C017
Figure 15. V_CELL Measurement at 3.5-V vs. Temperature
99.25
4.248
99.20
4.24795
99.15
4.2479
99.10
4.24785
99.05
4.2478
±40 ±20 0
20 40 60
Temperature (ƒC)
This is the V_CELL average for single cell.
80 100 120
C018
Figure 16. V_CELL Measurement at 4.25-V vs. Temperature
99.00
±40 ±20 0
I_SET = 100 mA, RSNS= 1 Ω
20 40 60
Temperature (ƒC)
80 100 120
C019
Figure 17. I measured vs. Temperature
14
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