ISL78223 Datasheet, PDF (3/20 Pages) Intersil Corporation – ZVS Full-Bridge PWM Controller with Adjustable Synchronous Rectifier Control

Typical Application - High Voltage Input Primary Side Control ZVS Full-Bridge Converter
VIN+
+
C1
400 VDC
CR2
Q8A
R15
Q8B
Q1
C2
Q6A
Q4
Q6B
VIN-
T2
CR1
R6
R5
R1
R4
T3
C4
Q10A
Q10B
CR3
Q2
R16
Q5A
Q5B
C3
Q9A
Q9B
Q3
Q7A
Q7B
T1
Q12
Q13
R17
C13
R13
R7
1 VREF
SS 20
2 VERR
VADJ 19
3 CTBUF
VDD 18
R8
4 RTD
OUTLL 17
5 RESDEL OUTLR 16
6 CT
OUTUL 15
7 FB
OUTUR 14
8 RAMP OUTLLN 13
9 CS
U1
10 IOUT
OUTLRN 12
GND 11
R11
U1
EL7212
C12
T4
CR4
U5
EL7212
R21
U4
R22
R18
L1
C15
C14
C16 ₊
+ Vout
RETURN
R20
R19
R23
C17
C18
R24
BIAS
VDD
R12
C9
R2
R3
C5 C6 C7 C8
R9
R10
U2
C10
C11
R14
U3
TL431
R25