BQ25120A Datasheet, PDF (16/67 Pages) Texas Instruments – Low IQ Highly Integrated Battery Charge Management Solution for Wearables and IoT

bq25120A
SLUSD08 – MAY 2017
Typical Characteristics (continued)
5%
4%
3%
2%
1%
0
-1%
-2%
-40qC
-3%
0qC
25qC
-4%
85qC
125qC
-5%
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4
Input Current Limit (A)
D020
10%
8%
6%
4%
2%
0
-2%
-4%
-6%
-8%
-10%
0
Figure 9. ILIM Accuracy vs Input Current
-40qC
0qC
25qC
85qC
125qC
5 10 15 20 25 30 35 40
Pre-Charge Current (mA)
D022
Figure 11. Pre-Charge Accuracy vs Pre-Charge Current
400
350
300
250
200
150
100
50
0
-40 -25 -10 5
V_IN = 5 V
20 35 50 65 80 95 110 125
Temperature (qC)
D027
Figure 13. R_DS(ON) of Low Side MOSFET vs Temperature
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5%
-40qC
0qC
3%
25qC
85qC
125qC
1%
-1%
-3%
-5%
0
50
100
150
200
250
300
Charge Current (mA)
D021
Figure 10. Charge Current Accuracy vs Charge Current
1000
900
800
700
600
500
400
300
200
100
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
Temperature (qC)
D0246
V_IN = 5 V
Figure 12. R_DS(ON) of High Side MOSFET vs Temperature
160
Noise Floor
10 mA
100 mA
140
1 mA
50 mA
120
100
80
60
40
20
0
10 20 50 100
1000
10000
Frequency (Hz)
100000
1000000
D028
Figure 14. LS/LDO PSRR vs Frequency
16
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