LP3910 Datasheet, PDF (16/72 Pages) Texas Instruments – Power Management IC for Hard-Drive-Based Portable Media Players

LP3910
SNVS481M – NOVEMBER 2006 – REVISED DECEMBER 2015
7.21 Typical Characteristics
T_A = 25°C unless otherwise noted
7.21.1 Battery-Charger Characteristics
4.25
4.24
4.23
4.22
4.21
4.20
4.19
4.18
4.17
4.16
4.15
-50
0
50
100
150
JUNCTION TEMPERATURE (°C)
Figure 1. V_TERM 4.2 V vs Temperature
-7.50
-7.70
-7.90
-8.10
-8.30
-8.50
125°C
25°C
-20°C
4.0
4.5
5.0
5.5
6.0
CHG_DET PIN VOLTAGE (V)
Figure 3. TS Pin Current vs CHG_DET
55.0
25°C
53.0
51.0
0°C
49.0
125°C
47.0
45.0
1.0
1.5
2.0
2.5
VBATT(V)
Prequal I_PROG = 500 mA
3.0
CHG_DET = 5 V
Figure 5. IU vs VBATT
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-7.50
-7.70
-7.90
-8.10
-8.30
-8.50
-20
10
40
70 100 130
TEMPERATURE (°C)
Figure 2. TS Pin Current vs Temperature
540
520
0°C
500
125°C
25°C
480
460
440
2.75 3.00 3.25 3.50 3.75 4.00 4.25
CHG_DET = 5 V
VBATT (V)
CC
Figure 4. CHG vs VBATT
56.0
54.0
0°C
25°C
52.0
50.0
125°C
48.0
4.0
4.5
5.0
5.5
6.0
USBPWR (V)
V_BATT = 2.5 V Prequal
Figure 6. ICHG vs USBPWR
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