PL384XBP8 Datasheet, PDF (8/15 Pages) Cystech Electonics Corp. – High Performance Current Mode PWM Controllers

CYStech Electronics Corp.
Figure 12:Under Voltage Lockout
Spec. No. : C510P8
Issued Date : 2003.04.24
Revised Date :
Page No. : 8/15
ICC
7
Vi
ON/OFF COMMAND
TO REST OF IC
<17mA
PL3842B PL3843B
PL3844B PL3845B
VON 16V
8.4V
VOFF 10V
7.6V
<0.5mA
VOFF
VON
VCC
During UVLO, the Output is low
Figure 13:Current Sense Circuit
Is
1
COMP
R
Rs
C
3
CURRENT
SENSE
5
GND
ERROR
AMP
2R
R
1V
CURRENT
SENSE
COMPARATOR
Peak Current (is) is determined by the formula
IS max ≈1.0V/Rs
A small RC filter may be required to suppress switch transients.
PL384XBP8
CYStek Product Specification