Texas Instruments BQ25120A, Руководство пользователя

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8.7 Typical Characteristics (continued)
Input Current Limit (A)
A
c
cu
ra
cy
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4
-5%
-4%
-3%
-2%
-1%
0
1%
2%
3%
4%
5%
D020
-40 q C
0 q C
25 q C
85 q C
125
q
C
Figure 8-9. ILIM Accuracy vs Input Current
Charge Current (mA)
A
c
cu
ra
cy
0 50 100 150 200 250 300
-5%
-3%
-1%
1%
3%
5%
D021
-40
q
C
0
q
C
25
q
C
85
q
C
125
q
C
Figure 8-10. Charge Current Accuracy vs Charge Current
Pre-Charge Current (mA)
Ac
cu
ra
cy
0 5 10 15 20 25 30 35 40
-10%
-8%
-6%
-4%
-2%
0
2%
4%
6%
8%
10%
D022
-40
q
C
0 q C
25
q
C
85
q
C
125
q
C
Figure 8-11. Pre-Charge Accuracy vs Pre-Charge Current
Temperature ( q C)
R
DS(
O
N)
(m
:
)
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
100
200
300
400
500
600
700
800
900
1000
D026 D024
V
IN
= 5 V
Figure 8-12. R
DS(ON)
of High Side MOSFET vs Temperature
Temperature (
q
C)
R
DS(
O
N)
(m
:
)
-40 -25 -10 5 20 35 50 65 80 95 110 125
0
50
100
150
200
250
300
350
400
D027
V
IN
= 5 V
Figure 8-13. R
DS(ON)
of Low Side MOSFET vs Temperature
Frequency (Hz)
PS
R
R
(d
B)
10 20 50 100 1000 10000 100000 1000000
0
20
40
60
80
100
120
140
160
D028
Noise Floor
1 mA 10 mA
50 mA 100 mA
Figure 8-14. LS/LDO PSRR vs Frequency
BQ25121A
SLUSDA7A – APRIL 2018 – REVISED JANUARY 2021
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