RT9519A Datasheet, PDF (9/17 Pages) Richtek Technology Corporation – Linear Single Cell Li-lon Battery Charger with Auto Power Path Management

RT9519A
I_CHG Thermal Regulation vs. Temperature
600
USB 500 Mode
500
400
300
200
100
VIN = 5V, VBAT = 3.7V, VVP = 3.3V
0
-50 -25 0
25 50 75
Temperature (°C)
100 125
Precharge Current vs. Battery Voltage
100
96
92
88
84
80
2.0
VIN = 5V, VVP = 3.3V, RISETA = 0.6kΩ
2.2
2.4
2.6
2.8
3.0
Battery Voltage (V)
Battery Regulation Voltage vs. Temperature
4.30
4.28
4.26
4.24
4.22
4.20
4.18
4.16
4.14
4.12
4.10
VIN = 5V, VVP = 3.3V
-50 -35 -20 -5 10 25 40 55 70 85
Temperature (°C)
Fastcharge Current vs. Battery Voltage
1040
1030
1020
1010
1000
3.00
VIN = 5V, VVP = 3.3V, RISETA = 0.6kΩ
3.22
3.44
3.66
3.88
4.10
Battery Voltage (V)
DS9519A-02 April 2011
www.richtek.com
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