PL384XBQ8 Datasheet, PDF (10/15 Pages) Cystech Electonics Corp. – High Performance Current Mode PWM Controllers

CYStech Electronics Corp.
Figure 16:Latched Shutdown
Spec. No. : C510Q8
Issued Date : 2003.04.24
Revised Date :
Page No. : 10/15
2N
3905
4
8
R
R
OSC
BIAS
1mA
2
EA
1
2R
R
5
2N
3903
SCR must be selected for a holding current of less than 0.5mA at TA(min).
The simple two transistor circuit can be used in place of the SCR as shown. All resistors are 10K.
Figure 17:External Clock Synchronization
8
RT
R
BIAS
R
4
+
CT
EXTERNAL
SYNC INPUT
0.01μF
47Ω
2
1
OSC
2R
R
5
The diode clamp is required if the Sync amplitude is large enough to cause
the bottom side of CT to go more than 300mV below ground.
PL384XBQ8
CYStek Product Specification