IR3094PBF 데이터 시트보기 (PDF) - International Rectifier

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IR3094PBF

3 PHASE PWM CONTROLLER FOR POINT OF LOAD

International Rectifier 

VCC

ROSC

FB

LGND

SETBIAS

4 X IROSC

BIASOUT

UVL

-

+

7.5V START 1.243

7.0V STOP

5VUVL

PWRGD

4.36V START

4.17V STOP

UVL

-

+

IROSC

Oscillator

CLK1 CLK1

CLK2 CLK2

CLK3 CLK3

OCSET

IROSC

245mV

OVER CURRENT

-

IAVE

+

DELAY

4V

SS

OFF

60U

6U

ON

55U

3V

10k

ENABLE

1.5V

Discharge Comparator

-

+

0.265V

-

+

FAULT LATCH

U37

S

Q

R

OR4

SET DOMINANT

REF BUFFER

-

+

IROSC

0.85V

EAOUT

OVPSNS

-

+

0.6V

Sof tStart_Clamp

1.1V

STARTUP OVP Comparator

0.48V

OVP Comparator

150mV

VDAC

OVP

75U

ON

75U

60k

VCC

5VUVL

OVP LATCH

S

Q

QB

R

SET DOMINANT

RESET DOMINANT

CLK1

S

PWM COMPARATOR

Q

-

QB

R

+

RSFF

IROSC/2

9p

0.6V

- Error_Amp

+

+ DISABLE

0% DUTY CYCLE

0.575V

SYNC LATCH

RESET DOMINANT

CLK2

S

PWM COMPARATOR Q

-

QB

R

+

RSFF

S

Q

QB

R

SET DOMINANT

0.75*VDAC

CO1 + PRESET

9p

CO2 -

0 TO IROSC*3/4

Share Adjust Error Amp

IROSC/2

0.6V

+

H FORCES IROSC/2

-

IAVE

CO3

summer

CO2

summer

CO1

summer

RESET DOMINANT

CLK3

S

PWM COMPARATOR

Q

-

QB

R

+

RSFF

IROSC

X23.5

X23.5

X23.5

CO1 + PRESET

9p

CO3 -

0.6V

0 TO IROSC*3/4

Share Adjust Error Amp

INTERNAL

REFERENCE

5VREF

VOSNS-

VREF

CSINM3 CSINP3 CSINM2 CSINP2 CSINM1 CSINP1

DRIVE

GATEHI

IN

OL_IN

PGND OL_OUT

GateHI

DRIVE

OL_IN OL_OUT

IN

GATELO

PGND

GateLO

DRIVE GATEHI

IN

OL_IN

PGND OL_OUT

GateHI

DRIVE

OL_IN OL_OUT

IN

GATELO

PGND

GateLO

VCCH1

GATEH1

PGND1

VCCL1_2

GATEL1

VCCH2

GATEH2

PGND2

GATEL2

SCOMP2

DRIVE GATEHI

IN

OL_IN

PGND OL_OUT

GateHI

DRIVE

OL_IN OL_OUT

IN

GATELO

PGND

GateLO

VCCH3

GATEH3

PGND3

VCCL3

GATEL3

SCOMP3

VDRP

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