MC33023DW datasheet(7/19 Pages) ONSEMI

部件名	MC33023DW

功能描述	High Speed Single-Ended PWM Controller

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制造商	ONSEMI [ON Semiconductor]

网页	http://www.onsemi.com

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7 / 19 page

MC34023 MC33023

7

MOTOROLA ANALOG IC DEVICE DATA

Ground

10

Vref

UVLO

4.2 V

Figure 18. Representative Block Diagram

Current Limit Reference

0.5 V

Q

9

11

12

14

13

15

PWM Latch

Soft–Start Latch

Vin

9.2 V

VCC

UVLO

Shutdown

Current

Limit

S

R

Reference

Regulator

VCC

Current Limit/Shutdown

Power Ground

Output

VC

VCC

+

16

4

5

6

7

3

2

1

8

CSS

9.0

µA

Error

Amp

PWM

Comparator

Oscillator

Q

S

R

Vref

RT

CT

Noninverting Input

Inverting Input

Error Amp Output

Ramp

Soft–Start

1.25 V

1.4 V

Clock

Figure 19. Current Limit Operating Waveforms

Output

PWM

Comparator

Error Amp Output

Clock

CT

Soft–Start

Ramp

类似零件编号 - MC33023DW

制造商	部件名	数据表	功能描述
ON Semiconductor	MC33023DW	441Kb / 18P	High Speed Single?묮nded PWM Controller October, 2005 ??Rev. 6
	MC33023DWG	441Kb / 18P	High Speed Single?묮nded PWM Controller October, 2005 ??Rev. 6
	MC33023DWR2	441Kb / 18P	High Speed Single?묮nded PWM Controller October, 2005 ??Rev. 6
	MC33023DWR2G	441Kb / 18P	High Speed Single?묮nded PWM Controller October, 2005 ??Rev. 6

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类似说明 - MC33023DW

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