ISL78840ASEH Datasheet, PDF (4/15 Pages) Intersil Corporation – Radiation Hardened, High Performance Industry Standard Single-Ended Current Mode PWM Controller

Typical Application - 48V Input Dual Output Flyback
CR5
V_IN+
36V TO 75V
C1
R3
C4
C2
R1
CR6
C3
Q1
T1
C21 + C15
R21
C5
CR2
CR4
+ C22
+
C17
C19
C20
R16
R17
C6
U2
R19
C14
+3.3V
+ C16
+1.8V
RETURN
R18
V_IN-
R6
Q3
VR1
R28
R4
R22
R27
CR1
U4
R26
COMP V_REF
CS
V _DD
FB
OUT
RTCT GND
ISL7884xASEH
R10
C8
C13
R15
U3
R20
C12
R13
C11