CP3800
Switching Regulator Power Controller
Pin voltage
VBR
IOFF
ION
IBR
ICCS
0.10 0.19 0.25
V
RB= 390Ω
Output current
Setting section/
Control section
Input off condition
Input on condition
Pin current range
Stand-by current
--
-20
--
-1.8
--
--
--
--
0
-45
-0.1
1
μA
μA
ｍＡ
μA
BR/CTL pin open or --
Entire device
VCC
Average supply current
ICC
RB= 390,VCC =2~12V
--
5.5 10.0
ｍＡ
Timing Chart
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
t
PE
Soft start
Output
short
Output short circuit
t
S
circuit
ON
Power supply control SW
OFF
Short circuit
detection
* All specs and applications shown above subject to change without prior notice.
1F-5 NO.66 SEC.2 NAN-KAN RD ., LUCHU , TAOYUAN, TAIWAN
Tel:886-3-3214525
Email: server@ceramate.com.tw
Http: www.ceramate.com.tw
Rev 1.0 Mar.31,2003
Page 5 of 19
Fax:886-3-3521052
CERAMATE [ CERAMATE TECHNICAL ]
