MC44605(2000) データシートの表示（PDF） - ON Semiconductor

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MC44605
(Rev.:2000)

High Safety, Latched Mode, GreenLine PWM Controller for (Multi) Synchronized Applications

ON Semiconductor 

MC44605

Block Diagram

Demagnetization

Detection Input 8

Demagnetization Vdemag out

Management

Output V DT

Iref

Rref

16

Vref i ref

Reference

Block

Vcc enable

Supply

Initialization

Block

VCC

1

UVLO1

UVLO2

18 V

2 VC

C T 10

Synchronization

and EHTOVP

9

Input

Oscillator

VS

Sf

Vcs

Current

I sense Sense

Disout

Set Q

PWM

Latch

Reset

Buffer 3 Output

4 Gnd

E.H.T.OVP

Block

W.S.C.D*

Comparator

VCC V WSCD

C ext 12

Vref

Voltage

Feedback 14

Input

Disabling

Block

+

Error

AMP

–

dis MPL

dis OHD

Disout

V shift

Thermal

Shutdown

Vref V CC

Over Voltage

Management

Vcs

Vshift Level

Programmation

UVLO2 V CC

enable

Sf

dis MPL

Vcs 2

dis OHD

Iref

15 WSCD

Programmation

MPL O.H.D.

block block

Soft–Start

UVLO1

V CC enable

E/A Output 13

7

5

6

11

MC44605

*W.S.C.D. = Winding Short Circuit Detection

Current Maximum Over Soft–Start

Sense Power Heating Input

Input Limitation Detection

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