ISL78600 Datasheet, PDF (15/22 Pages) Intersil Corporation – Multi-Cell Li-Ion Battery Manager

ISL78600
Typical Performance Curves (Continued)
50
40
30
20
10
0
-3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0 2.5 3.0
READING ERROR (mV)
FIGURE 4A. INITIAL CELL VOLTAGE ACCURACY AT 3.3V, +25°C
HISTOGRAM
35
30
25
20
15
10
5
0
-3.0 -2.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0
READING ERROR (mV)
FIGURE 4B. CELL READING ERROR FROM 114 EVALUATION
BOARDS AT 3.3V, +25°C HISTOGRAM
400
300
200
100
0
-100
-200
-300
-400 ₀
10
20
30
40
50
60
PACK VOLTAGE (V)
FIGURE 5A. PACK VOLTAGE READING ERROR FROM -20°C TO +60°C
600
400
200
0
-200
-400
-600 ₀
10
20
30
40
50
60
PACK VOLTAGE (V)
FIGURE 5B. PACK VOLTAGE READING ERROR FROM -40°C TO +105°C
35
30
25
20
15
10
5
0
-50 -40 -30 -20 -10 0 10 20 30 40 50
READING ERROR (mV)
FIGURE 6. INITIAL PACK VOLTAGE ACCURACY AT 39.6V, +25°C
HISTOGRAM
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4
3
-20°C
2
-40°C
1
0
+105°C
+85°C
-1
-2
+60°C
-3
+25°C
-4
-5
0
10
20
30
40
50
60
PACK VOLTAGE (V)
FIGURE 7. IC TEMPERATURE ERROR vs PACK VOLTAGE
FN7672.6
January 20, 2015