LTC4261 datasheet(11/74 Pages) AD

11 / 74 page

LTC4283

Rev. B

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

TMR Pull-Up Current vs DRNS

Voltage

TMR Pull-Up Current vs SENSE

Input Voltage

ADIO Output Low Voltage vs Load

Current

PGIO Output Low Voltage vs Load

Current

VREF Output Voltage vs Load

Current

ADC Full-Scale Error vs

Temperature

CURRENT

LIMIT

100% VILIM

98% VILIM

50% VILIM

20% VILIM

10% VILIM

VDRNS (V)

0.6

1.2

1.8

2.4

100

200

300

400

4283 G10

∆VSENSE1 =

TA = –40°C

TA = 25°C

TA = 85°C

TA = 125°C

LOAD CURRENT (mA)

0.20

0.40

0.60

0.80

1.00

4283 G13

VILIM = 15mV

VDRAIN > VD,FET(TH)

POWER GOOD LATCHED

CURRENT LIMIT

VDRNS = 1.8V

VDRNS = 1.2V

VDRNS = 0.6V

VDRNS = 0V

∆VSENSE1 (mV)

100

150

200

250

4283 G11

LOAD CURRENT (µA)

–400

–200

200

400

600

1.022

1.023

1.024

1.025

1.026

4283 G14

TA = –40°C

TA = 25°C

TA = 85°C

TA = 125°C

LOAD CURRENT (mA)

0.20

0.40

0.60

0.80

4283 G12

TEMPERATURE (°C)

–50 –25

100 125

–0.2

–0.1

0.1

0.2

0.3

4283 G15

Voltage ADC Total Unadjusted

Error (TUE) vs Code

Current ADC Total Unadjusted

Error (TUE) vs Code

12-Bit Voltage ADC INL vs Code

INPUT = VRTNS

RESOLUTION = 12-BIT

CODE

1024

2048

3072

4096

–0.10

–0.05

0.05

0.10

4283 G16

INPUT = SENSE+ – SENSE–

RESOLUTION = 12-BIT

CODE

1024

2048

3072

4096

–0.10

–0.05

0.05

0.10

4283 G17

INPUT = VRTNS

CODE

1024

2048

3072

4096

–1.0

–0.8

–0.6

–0.4

–0.2

0.0

0.2

0.4

0.6

0.8

1.0

4283 G18

LTC4261 Datasheet(PDF) 11 Page - Analog Devices

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