MC33365P(2006) View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

MC33365P
(Rev.:2006)

High Voltage Switching Regulator

ON Semiconductor 

MC33365

AC Input

Regulator Output

6.5 V 8

I

6

RT

CT 7

Startup Input 1

Current

Mirror

Band Gap

Regulator

2.25 I

Startup

Control

UVLO

14.5 V/

9.5 V

VCC

3

BOK

4I

Oscillator

PWM

Comparator

Thermal

Shutdown

PWM Latch

S

Q

R

Driver

1.25 V

11

16

Power Switch

Drain

Leading Edge

Blanking

Current Limit

Comparator 405

8.1

Compensation

9

270 μA

Gnd 4, 5, 12, 13

Error

Amplifier

2.6 V

10

Voltage

Feedback Input

Figure 17. Representative Block Diagram

DC Output

Capacitor CT

Compensation

Oscillator

Output

PWM

Comparator

Output

PWM Latch

Q Output

Power Switch

Gate Drive

Leading Edge

Blanking Input

(Power Switch

Drain Current)

2.6 V

0.6 V

Normal PWM Operating Range

Figure 18. Timing Diagram

http://onsemi.com

7

Output Overload

Current Limit

Propagation

Delay

Current

Limit

Threshold

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