LTC4155 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC4155

Dual-Input Power Manager/ 3.5A Li-Ion Battery Charger with I2C Control and USB OTG

Linear Technology 

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LTC4155

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C (Note 2). VBUS = 5V, BATSNS = 3.7V,

DVCC = 3.3V, RCLPROG1 = RCLPROG2 = 1.21k, RPROG = 499Ω, unless otherwise noted.

Undervoltage Lockout Thresholds

vs Temperature

4.30

4.25

RISING UVLO NOT MAX

4.20

RISING UVLO MAX

4.15

4.10

FALLING UVLO NOT MAX

4.05

FALLING UVLO MAX

4.00

OVP Charge Pump Output

vs Input Voltage

10

9

8

7

Battery Conditioner Current vs

Battery Voltage and Temperature

0.20

–45°C

–30°C

–15°C

0.15

0°C

15°C

30°C

45°C

0.10

60°C

75°C

90°C

105°C

0.05

120°C

135°C

3.95

–40

–15 10

35

60

85

TEMPERATURE (°C)

4155 G19

6

3.5 4.0 4.5 5.0 5.5 6.0 6.5

INPUT VOLTAGE (V)

4155 G20

0

3.6 3.7 3.8 3.9 4.0 4.1 4.2

BATTERY VOLTAGE (V)

4155 G21

Battery Drain Current

vs Battery Voltage

4

SHIP-AND-STORE MODE, DVCC = 0V

SHIP-AND-STORE MODE, DVCC = 3.3V

DVCC = 0V

3

DVCC = 3.3V

2

1

CLPROG Voltage vs VBUS Current

1.4

3A INPUT CURRENT LIMIT MODE

1.2

1.0

0.8

0.6

0.4

0.2

0

2.4 2.7 3.0 3.3 3.6 3.9 4.2

BATTERY VOLTAGE (V)

4155 G22

CLPROG Voltage vs VOUT Current

1.4

3A INPUT CURRENT LIMIT MODE

1.2

1.0

0.8

0.6

0.4

0.2

0

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5

VOUT CURRENT (A)

4155 G24

0

0 0.5 1.0 1.5 2.0 2.5 3.0 3.5

VBUS CURRENT (A)

4155 G23

VOUT Voltage vs VOUT Current

4.4

3A

4.2

MODE

4.0

900mA MODE

3.8

500mA

3.6 MODE

VBATSNS = 3.7V

BATTERY CHARGER DISABLED

3.4

0

1

2

3

VOUT CURRENT (A)

4

4155 G33

4155fc

11

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