BQ24085_17 Datasheet, PDF (9/42 Pages) Texas Instruments – 750-mA Single-Chip Li-Ion and Li-Pol Charge Management IC With Thermal Regulation

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7.8 Typical Characteristics
Measured using the typical application circuit shown previously.
450
400
350
300
250
200
150
100
50
0
0
40
80
120
160
Die Temperature (^oC)
Figure 1. Thermal Regulation
40.5
40.45
40.4
40.35
40.3
85°C
40.25
40.2
25°C
40.15
0°C
40.1
40.05
40
2
2.20 2.40 2.60 2.80
3
Battery Voltage - V
Figure 3. Pre-Charge Current vs Battery Voltage
195
V_(BAT) = 4.1 V
190
185
V_(BAT) = 3.5 V
180
0
200
400
600
800
Fast-Charge Current - mA
Figure 5. KSET Linearity vs Fast-Charge Current
bq24085, bq24086, bq24087, bq24088
SLUS784E – DECEMBER 2007 – REVISED DECEMBER 2015
25
20
15
10
5
0
0 50 100 150 200 250 300 350 400 450
Actual Charge Current
due to thermal regulation - mA
Figure 2. DTC Operation
405
404
403
402
25°C
401
0°C
400
399
85°C
398
397
396
395
3
3.20 3.40 3.60 3.80
4
Battery Voltage - V
Figure 4. Fast-Charge Current vs Battery Voltage
230
V_(BAT) = 2.5 V
220
210
200
190
180
0
20
40
60
80
Pre-Charge Current - mA
Figure 6. KSET Linearity vs Pre-Charge Current
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