LTC4366 datasheet(7/32 Pages) AD

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LTC7862

Rev 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

Maximum Current Sense

Threshold vs ITH Voltage

RUN/OVLO Threshold

vs Temperature

OVLO RISING

RUN RISING

RUN FALLING

OVLO FALLING

TEMPERATURE (°C)

–75 –50 –25 0

25 50 75 100 125 150

1.00

1.05

1.10

1.15

1.20

1.25

1.30

1.35

1.40

7862 G11

5% DUTY CYCLE

VITH (V)

0.2

0.4

0.6

0.8

1.0

1.2

1.4

–40

–20

100

7862 G10

DRVCC Line Regulation

Quiescent Current vs Temperature

Oscillator Frequency

vs Temperature

SS Pull-Up Current

vs Temperature

Shutdown Current vs Temperature

Shutdown Current

vs Input Voltage

VIN = 12V

TEMPERATURE (°C)

–75 –50 –25 0

25 50 75 100 125 150

7862 G13

VIN = 6.3V

INPUT VOLTAGE (V)

0 15 30 45 60 75 90 105 120 135 150

7862 G14

FREQ = 0V

FREQ = INTVCC

TEMPERATURE (°C)

–75 –50 –25 0

25 50 75 100 125 150

300

350

400

450

500

550

600

7862 G16

TEMPERATURE (°C)

–75 –50 –25 0

25 50 75 100 125 150

8.0

8.5

9.0

9.5

10.0

10.5

11.0

11.5

12.0

7862 G17

Boost Charge Pump Voltage

vs SW Voltage in Pass-Through

Mode

FREQ = 350kHz

10MΩ BETWEEN BOOST AND SW

DRVUV = 0V

150°C

25°C

–55°C

SW VOLTAGE (V)

0 5 10 15 20 25 30 35 40 45 50 55 60 65

7862 G18

DRVUV = INTVCC

DRVUV = 0V

TEMPERATURE (°C)

–75 –50 –25 0

25 50 75 100 125 150

0.5

1.0

1.5

2.0

7862 G15

TA = 25°C, unless otherwise noted.

EXTVCC = 0V

DRVUV = 0V

DRVUV = INTVCC

INPUT VOLTAGE (V)

0 15 30 45 60 75 90 105 120 135 150

7862 G12

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