RT9519A Просмотр технического описания (PDF) - Richtek Technology

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RT9519A

Linear Single Cell Li-lon Battery Charger with Auto Power Path Management

Richtek Technology 

RT9519A

ICHG 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

9

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