Pin voltage

V

BR

R

0.10 0.19 0.25

V

Input off condition

I

OFF

-20

--

0

μ

A

Input on condition

I

ON

--

--

-45

μ

A

Output current

Setting section/

Control section

Pin current range

I

BR

--

-1.8

--

-0.1 ｍＡ

Stand-by current

I

CCS

BR/CTL pin open or

V

CC

--

--

1

μ

A

Entire device

Average supply current

I

CC

R

--

5.5

10.0 ｍＡ

Timing Chart

CP3800

Switching Regulator Power Controller

* 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

5 of 19

Rev 1.0 Mar.31,2003

ON

OFF

FB pin voltage

Reference input for short circuit

detection comparator

Idle period setting voltage

Sawtooth wave output

Soft start setting voltage

OUT pin waveforms

SCP pin waveforms

Power supply control SW

Soft start

Output

short

circuit

Output short circuit

Short circuit

detection