LTC4261 datasheet(9/82 Pages) AD

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LTC4284

Rev. B

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

Shunt Regulator Voltage vs

Input Current

VZ Input Current vs Temperature

INTVCC Voltage vs Load Current

GATE Output High Voltage vs

Leakage Current

GATE Pull-Down Current vs

SENSE Input Voltage

GATE Turn-Off Time vs

SENSE Input Voltage

I2C TIMING DIAGRAM

tSP

tBUF

tSU,STO

tSP

tHD,STA

START

CONDITION

STOP

CONDITION

tSU,STA

tHD,DATI

tHD,DATO

REPEATED START

CONDITION

REPEATED START

CONDITION

tSU,DAT

SDA

SCL

tHD,STA

4284 TD

VIN INPUT CURRENT (mA)

11.0

11.2

11.4

11.6

11.8

12.0

4284 G01

IGATE (µA)

–10 –20 –30 –40 –50 –60 –70

4284 G04

VZ = 15V

VIN = 10.5V

TEMPERATURE (°C)

–50 –25

100 125

4284 G02

VILIM = 15mV

VGATE = 7V

FAST PULL-DOWN

CURRENT LIMIT

SENSE INPUT VOLTAGE (mV)

100

0.001

0.01

0.1

4284 G05

IIN = 35mA

LOAD CURRENT (mA)

4.96

4.98

5.00

5.02

5.04

5.06

5.08

4284 G03

VILIM = 15mV

GATE FALLING FROM 11.5V TO 3V

FAST PULL-DOWN

CGATE = 100nF

GATE OPEN

SENSE INPUT VOLTAGE (mV)

100

0.01

0.1

100

4284 G06

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