BQ24040_16 Datasheet, PDF (10/38 Pages) Texas Instruments – Single Cell Li-Ion and Li-Pol Battery Charger With Auto Start

bq24040, bq24041, bq24045
SLUS941F – SEPTEMBER 2009 – REVISED MARCH 2015
7.7 Typical Operational Characteristics (Protection Circuits Waveforms)
SETUP: bq24040 typical applications schematic; V_IN = 5V, V_BAT = 3.6V (unless otherwise indicated)
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546
544
542
540
538
536
534
532
530
528
0
Kiset
Low to High Currents
(may occur in recharge to fast charge transion)
High to Low Currents
(may occur in Voltage Regulation - Taper Current)
.15 0.2
0.4
0.6
0.8
I_O - Output Current - A
4.212
4.21
V_O at 0°C
R_OUT = 100 Ω
4.208
4.206
4.204
4.202
V_O at 25°C
V_O at 85°C
4.2
4.198
4.196
4.5
5
5.5
6
6.5
V_I - Input Voltage DC - V
Figure 1. Kiset for Low and High Currents
4.2
4.199
4.198
4.197
V_reg at 25°C
V_reg at 85°C
4.196
4.195
4.194
V_reg at 0°C
4.193
4.192
0
0.2
0.4
0.6
0.8
1
I_O - Output current - A
Figure 2. Line Regulation
4.352
4.35
4.348
4.346
4.344
V_REG at 0°C
V_REG at 85°C
V_REG at 25°C
V_REG at 125°C
4.342
4.34
0
100 200 300 400 500 600 700 800 900
I_LOAD - Current - mA
Figure 3. Load Regulation Over Temperature
4.3450
4.3445
4.3440
4.3435
4.3430
4.3425
4.3420
V_REG at 0°C
V_REG at 25°C
V_REG at 25°C
4.3415
4.5
5
5.5
6
6.5
7
V_IN - Input Voltage - V
Figure 5. Line Regulation
Figure 4. Load Regulation
363.4
363.2
363
362.8
362.6
I_O at 25°C
I_O at 85°C
362.4
362.2
362
I_O at 0°C
361.8
2.5
3
3.5
4
4.5
V_O - Output Voltage - V
Figure 6. Current Regulation Over Temperature
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