LTC4221IGN datasheet(10/28 Pages) LINER

номер детали	LTC4221IGN

подробное описание детали	Dual Hot Swap Controller/ Power Sequencer with Dual Speed, Dual Level Fault Protection

PDF	28 Pages

Scroll/Zoom	100%

производитель	LINER [Linear Technology]

домашняя страница	http://www.linear.com

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10 / 28 page

LTC4221

4221f

BLOCK DIAGRA

26V

9.5µA

109.5µA

CPO2

VCC2

CUR_LIMIT2

FPD2

–

CHARGE

PUMP 1

CHARGE

PUMP 2

UVLO

OSCILLATOR

VCC1

VCC2

CPO1

CPO2

0.821V

ON1

COMPARATOR

SYSTEM

CONTROL

LOGIC

0.4V

VCC1

ON1

–

ON2

COMPARATOR

FILTER

COMPARATOR

TMRHI

COMPARATOR

FAULT

COMPARATOR

0.821V

FTRHI

TMRHI

TIMER

1.234V

FAULT_LO

105µA

1.8µA

–

1.24V

0.816V

–

0.617V

–

OV1

COMPARATOR

FB1

COMPARATOR

0.822V

–

ON2

FILTER

VCC1

3.8µA

VCC1

FAULT

GND

GATE1

26V

PWRGD1

CHANNEL ONE

20µA1.9µA

VCC1

9.5µA

12V

109.5µA

CPO1

VCC1

CUR_LIMIT1

FPD1

TMRLO

COMPARATOR

TMRLO

0.4V

–

SLOW

COMPARATOR 1

CHANNEL 1

CONTROL

LOGIC

SLOWHI1

9mV TO 25mV

FASTHI1

VCC1

–

FAST

COMPARATOR 1

GATELO1

COMPARATOR

GATELO1

0.4V

–

SENSE1

–

VCC1

100mV

–

FB1

0.617V

–

OV2

COMPARATOR

FB2

COMPARATOR

0.822V

–

VCC2

GATE2

PWRGD2

4221 BD

CHANNEL TWO

–

SLOW

COMPARATOR 2

CHANNEL 2

CONTROL

LOGIC

SLOWHI2

9mV TO 25mV

FASTHI2

VCC2

–

FAST

COMPARATOR 2

GATELO2

COMPARATOR

GATELO2

0.4V

–

SENSE2

–

VCC2

100mV

–

FB2 12

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