BQ24314CDSGR Datasheet, PDF (9/22 Pages) Texas Instruments – OVERVOLTAGE AND OVERCURRENT PROTECTION IC AND Li+ CHARGER FRONT-END PROTECTION IC

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bq24314C
SLUSAV3 – AUGUST 2012
TYPICAL OPERATING PERFORMANCE (continued)
UNDERVOLTAGE LOCKOUT
vs
FREE-AIR TEMPERATURE
2.75
2.7
2.65
V_IN Increasing
2.6
2.55
2.5
2.45
V_IN Decreasing
2.4
-50 -30 -10 10 30 50 70
Temperature - °C
Figure 12.
90 110 130
280
260
240
220
200
180
160
140
120
100
0
DROPOUT VOLTAGE (IN to OUT)
vs
FREE-AIR TEMPERATURE
V_IN = 4 V
V_IN = 5 V
50
100
150
Temperature - °C
Figure 13.
OVERVOLTAGE THRESHOLD PROTECTION
vs
FREE-AIR TEMPERATURE
5.88
5.86
5.84
5.82
V_IN Increasing
5.8
V_IN Decreasing
5.78
-50 -30 -10
10
30 50
70
Temperature - °C
90 ₁₁₀ 130
Figure 14.
INPUT OVERCURRENT PROTECTION
vs
ILIM RESISTANCE
1600
1400
1200
1000
800
600
400
200
0
0
10 20 30 40 50 60 70 80 90 100
R_ILIM - kW
Figure 15.
Copyright © 2012, Texas Instruments Incorporated
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