LTC4061-4.4_15 datasheet(5/20 Pages) LINER

Part #	LTC4061-4.4

Description	Standalone Linear Li-Ion Battery Charger with Thermistor Input

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Manufacturer	LINER [Linear Technology]

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LTC4061-4.4

5

406144fb

TEMPERATURE (

°C)

–50 –25

0

400

1000

0

50

75

40614.4 G13

40614.4 G14

200

800

600

25

100 125

RPROG = 1.25k

ONSET OF THERMAL

REGULATION

RPROG = 2k

VCC (V)

4.0

8.0

5.0

6.0

7.0

104

102

100

98

96

4.5

5.5

6.5

7.5

TEMPERATURE (

°C)

–50

4.36

4.34

4.32

4.30

4.28

4.26

4.24

–25

0

25

50

40614.4 G15

75

100

TEMPERATURE (

°C)

–50

500

450

400

350

300

250

–25

0

25

50

40614.4 G16

75

100

VCC = 4V

IBAT = 200mA

TEMPERATURE (

°C)

–50

1.7

1.6

1.5

1.4

1.3

1.2

–25

0

25

50

40614.4 G12

75

100

CTIMER = 0.1µF

VCC = 8V

VCC = 4.5V

VCC = 8V

VCC = 4.5V

VCC = 5V

VBAT = 4V

C/5 = 5V

RPROG = 10k

40614.4 G11

VCC (V)

4.0

8.0

5.0

6.0

7.0

1.60

1.55

1.50

1.45

1.40

1.35

1.30

4.5

5.5

6.5

7.5

CTIMER = 0.1µF

–50

–25

0

25

50

75

100

TEMPERATURE (

°C)

195

190

185

180

175

170

165

40614.4 G10

CTIMER = 0.1µF

VCC = 4.5V

VCC = 8V

40614.4 G17

40614.4 G18

TEMPERATURE (

°C)

–50

25

75

–25

0

50

100

3.900

3.875

3.850

3.825

3.800

3.775

3.750

3.725

3.700

VBAT (V)

0

3.0

900

800

700

600

500

400

300

200

100

0

0.5

4.5

1.0 1.5 2.0 2.5

3.5 4.0

NTC Fault Pulsing Frequency

vs VCC

NTC Fault Pulsing Frequency

vs Temperature

Charge Current vs Ambient

Temperature with Thermal

Regulation

Charge Current vs Supply Voltage

Recharge Threshold Voltage vs

Temperature

Power FET “ON” Resistance vs

Temperature

Internal Charge Timer vs

Temperature

Undervoltage Lockout Voltage vs

Temperature

Charge Current vs Battery Voltage

TYPICAL PERFOR A CE CHARACTERISTICS T

A = 25°C unless otherwise noted.

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