Texas Instruments BQ25123, Manual

Page: 14 / 72

8.7 Typical Characteristics
BAT (V)
BA
T
I
Q
(
P
A
)
3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6
0
2
4
6
8
10
12
D016
85
q
C
60
q
C
25
q
C
0
q
C
Figure 8-3. Active BAT, I
Q
BAT (V)
B
A
T I
Q
(
P
A
)
3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6
0.0
0.5
1.0
1.5
2.0
D017
85
q
C
60
q
C
25
q
C
0
q
C
1.8-V System Enabled (No Load)
Figure 8-4. Hi-Z BAT, I
Q
BAT (V)
BA
T
I
Q
(
P
A
)
3 3.2 3.4 3.6 3.8 4 4.2 4.4 4.6
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
D018
85
q
C
60
q
C
25
q
C
0
q
C
Figure 8-5. Ship Mode BAT, I
Q
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
D024
Figure 8-6. Blocking FET R
DS(ON)
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
D025
Figure 8-7. Battery Discharge FET R
DS(ON)
vs Temperature
Temperature (
q
C)
A
c
cu
ra
cy
-40 -10 20 50 80 110 125
-0.5%
-0.3%
-0.1%
0.1%
0.3%
0.5%
D019
4.35 V
(BATREG)
4.2 V
(BATREG)
4 V
(BATREG)
3.8 V
(BATREG)
3.6 V
(BATREG)
Figure 8-8. V
(BATREG)
Accuracy vs Temperature
BQ25123
SLUSCZ6A – JANUARY 2018 – REVISED MAY 2021
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