MC44604 View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

MC44604

High Safety Pulsed Mode Standby GreenLine PWM Controller

ON Semiconductor 

MC44604

Block Diagram

Demagnetization

Detection

8

Clamp Error

Ampllifier Input

12

4.7 V

CT 10

Rref

Vcc

16

1

Demagnetization

Management

Vdemag out

Vref Iref

Reference Block

VCC enable

Supply

Initialization

Block

UVLO1

UVLO2

18 V

Vstby

Vstby

2

iref

Oscillator

V OSC

Vref

Vosc prot

Dis(stby)

Set Q

Buffer 3

Dis(stby−latched)

PWM

Latch

4

Reset

VC

OUTPUT

GND

Standby

Management

15

Voltage

Feedback 14

Input

Standby

Management

Vstby

Iref

Vref +

Error

AMP

−

Dis(stby)

Vcs

Current

Sense

Thermal

Shutdown

Vref

V CC

Overvoltage

Overvoltage

6 Protection

iref

Management

(OVP)

E/A Output 13

Foldback

5

Foldback

Input

Standby (lpk)max

Programmation

Vstby

8

Standby

Current

Set

7

Current

Sense

Input

Dmax &

Soft−Start

Control

UVLO2 V CC enable

UVLO1

V CC enable Dis(stby−latched)

Vstby

11

MC44604

Soft−Start

(Css)/Dmax

Voltage Mode

Control

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