ISL6551 Просмотр технического описания (PDF) - Renesas Electronics

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ISL6551

ZVS Full Bridge PWM Controller

Renesas Electronics 

ISL6551

Functional Block Diagram

BANDGAP

REFERENCE

BGREF 8

PKILIM 7

R_LEB 9

R_RESDLY 4

RESODLY

ISENSE 6

R_RA 5

CT 2

RD 3

EAO 14

RAMP

ADJUST

CLOCK

GENERATOR

ERROR AMP

Figure 7

EAI 13

EANI 12

DC OK

UVLO

SSHHUUTTDDOOWWNN

LLAATTCCHH

SSOOFFTT-

SSTTAARRTT

SSHHUUTTDDOOWWNN

UPPER1

DRIVER

27 VDDP1

24 UPPER1

LEB

PWM

LOGIC

UPPER2

DRIVER

23 UPPER2

LOWER1

DRIVER

26 VDDP2

22 LOWER1

CURRENT

SHARE

LOWER2

DRIVER

21 LOWER2

CIRCUITS REFERENCED TO VSS

FN9066 Rev 7.00

Oct 28, 2015

CIRCUITS REFERENCED TO PGND

EXTERNAL SINGLE POINT CONNECTION REQUIRED

FIGURE 1. FUNCTIONAL BLOCK DIAGRAM

Page 5 of 27

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