BQ294502 Datasheet, PDF (6/18 Pages) Texas Instruments – Overvoltage Protection for 2-Series and 3-Series Cell Li-Ion Batteries

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SLUSAJ3C – SEPTEMBER 2011 – REVISED MAY 2012
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DC CHARACTERISTICS (continued)
Typical values stated where T_A = 25°C and VDD = 10.8 V, MIN/MAX values stated where T_A = –40°C to 110°C and V_DD =
3 V to 15 V (unless otherwise noted).
Symbol
Parameter
Condition
Min
Typ
Max Unit
Voltage Protection Threshold VCx
1.24
t_{DELAY_CTM}
Fault Detection
Delay Time in
Test Mode
Fixed delay (Internal settings)
15
ms
TYPICAL CHARACTERISTICS
1.3
1.2
1.1
1
0.9
0.8
0.7
-40
0
25
60
110
Temperature Deg C
Figure 2. I_CC Current Consumption Versus Temperature
4.370
4.360
4.350
4.340
4.330
Min
Max
Mean
4.320
4.310
–40
0
25
60
110
Temperature Deg C
Figure 3. bq294502 Overvoltage Threshold (OVT) vs. Temp
6
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