LTC3722EGN-1-TRPBF データシートの表示（PDF） - Linear Technology

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LTC3722EGN-1-TRPBF

Synchronous Dual Mode Phase Modulated Full Bridge Controllers

Linear Technology 

BLOCK DIAGRAM

LTC3722-1/LTC3722-2

LTC3722-2 Voltage Mode SYNC Phase-Shift PWM

VCC

UVLO

18

12

VREF

14

CT

SYNC SPRG DPRG SBUS

24

1

13

5

10

VCC UVLO

10.25V = ON

6V = OFF

FB

–

6

ERROR

AMPLIFIER

+

+

1.2V

COMP

4

–

5V

R1

50k

2

RAMP – +

650mV

5V

REF AND LDO

1.2V

REF GOOD

SYSTEM

UVLO

VCC

GOOD

–

+

PHASE

MODULATOR

OSC

1 = ENABLE

0 = DISABLE

Q

T

QB

QB R

VREF

QS

SS

12µA

7

SHUTDOWN

CURRENT

LIMIT

+

FAULT

LOGIC

650mV –

M2

R QB

S

PASSIVE

DELAY

SYNC

RECTIFIER

DRIVE

LOGIC

ACTIVE

DELAY

CS

3

BLANK +

23

300mV –

PULSE BY PULSE

GND

CURRENT LIMIT

PDLY

9

OUTA

21

OUTB

20

OUTE

16

OUTF

15

OUTC

19

OUTD

17

ADLY

11

372212 BD02

PGND

22

For more information www.linear.com/LTC3722

372212fb

9

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