CP494 datasheet(10/11 Pages) CERAMATE

No. de pieza	CP494

Descripción Electrónicos	SWITCHMODE Pulse Width Modulation Control Circuit

PDF	11 Pages

Scroll/Zoom	100%

Fabricante Electrónico	CERAMATE [Ceramate Technical]

Página de inicio	http://www.ceramate.com.tw

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10 / 11 page

CP494

SWITCHMODE Pulse Width Modulation Control Circuit

* All specs and applications shown above subject to change without prior notice.

1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU ,

TAOYUAN, TAIWAN

Email: server@ceramate.com.tw

Tel:886-3-3214525

Http: www.ceramate.com.tw

Fax:886-3-3521052

Page 10 of 11

Rev 1.0 Apr.19,2004

Figure 21. Pulse Width Modulated Step–Down Converter

+Vin = 10V to 40V

Tip 32A

1.0mH @ 2A

+VO = 5.0 V

IO = 1.0 A

10V

5.1k

MR850

0.1

150

5.1k

47k

1.0M

0.1

Comp

Vref

VCC

50V

0.001

13 7

D.T. O.C. Gnd E1 E2

47k

500

10V

150

CP494

Test

Conditions

Results

Line Regulation

Vin = 8.0 V to 40 V

3.0 mV

0.01%

Load Regulation

Vin = 12.6 V, IO = 0.2 mA to 200 mA

5.0 mV

0.02%

Output Ripple

Vin = 12.6 V, IO = 200 mA

40 mV pp

P.A.R.D.

Short Circuit Current

Vin = 12.6 V, RL = 0.1 W

250 mA

Efficiency

Vin = 12.6 V, IO = 200 mA

72%

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