BQ25120A Datasheet, PDF (15/67 Pages) Texas Instruments – Low IQ Highly Integrated Battery Charge Management Solution for Wearables and IoT

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8.7 Typical Characteristics
bq25120A
SLUSD08 – MAY 2017
12
10
8
6
4
2
85qC
25qC
60qC
0qC
0
3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6
BAT (V)
D016
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
3
Figure 3. Active BAT, I_Q
85qC
60qC
25qC
0qC
3.2 3.4 3.6 3.8 4
BAT (V)
4.2 4.4 4.6
D018
2.0
1.5
1.0
0.5
0.0
3
85qC
60qC
25qC
0qC
3.2 3.4 3.6 3.8 4
BAT (V)
1.8 V System Enabled (No Load)
4.2 4.4 4.6
D017
Figure 4. Hi-Z BAT, I_Q
700
600
500
400
300
200
100
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (qC)
D024
Figure 5. Ship Mode BAT, I_Q
400
350
300
250
200
150
100
50
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (qC)
D025
Figure 6. Blocking FET R_DS(ON) vs Temperature
0.5%
0.3%
0.1%
-0.1%
-0.3%
-0.5%
-40
-10
20
50
Temperature (qC)
4.35 V_(BATREG)
4.2 V_(BATREG)
4 V_(BATREG)
3.8 V_(BATREG)
3.6 V_(BATREG)
80
110 125
D019
Figure 7. Battery Discharge FET R_DS(ON) vs Temperature
Figure 8. V_(BATREG) Accuracy vs Temperature
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