BQ24170 Datasheet, PDF (16/35 Pages) Texas Instruments – 1.6-MHz Synchronous Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Charger

bq24170
bq24172
SLUSAD2A – NOVEMBER 2010 – REVISED NOVEMBER 2010
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SRN
5V/div
PH
10V/div
IL
1A/div
4 ms/div
Figure 15. Battery to Ground Short Transition
96
94
94
92
92
90
90
88
VIN 15V 3 cell
88
VIN 15V 2 cell
86
86
84
84
82
82
VIN 5V BAT 3.8V
VIN 9V BAT 3.8V
80
0
0.5
1.0
1.5
2.0 2.5
3.0
3.5 4.0
Charge Current - A
Figure 16. Efficiency vs Output Current (VIN = 15V)
80
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Charge Current - A
Figure 17. Efficiency vs Output Current (VOUT = 3.8V)
16
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