TOP100-4
TOPSwitch
Three-terminal Off-line PWM Switch
AC IN
DRAIN SOURCE CONTROL
TOPSwitch
TOPSwitch SELECTION GUIDE
ORDER PART NUMBER
OUTPUT POWER RANGE
FLYBACK
PFC/ BOOST
100/110 V VAC
48 V DC
100/110 VAC
N*
N*
N*
N*
N*
July 2009
TOP100-4
CONTROL
VC
0
ZC
SHUNT
REGULATOR/ ERROR AMPLIFIER + 5.
7 V
5.
7 V 4.
7 V
SHUTDOWN/ 1 AUTO-RESTART
+ -
POWER-UP RESET
EXTERNALLY TRIGGERED SHUTDOWN
IFB
THERMAL SHUTDOWN
INTERNAL SUPPLY
รท8
RQ SQ
OSCILLATOR DMAX
CLOCK SAW
+ PWM COMPARATOR
SQ RQ
RE
Figure 2.
Functional Block Diagram.
DRAIN
+ - VILIMIT
CONTROLLED TURN-ON GATE DRIVER
LEADING EDGE
BLANKING
MINIMUM ON-TIME DELAY
SOURCE PI-1746-011796
Pin Functional Description
DRAI...