ISL6721_07 Datasheet, PDF (3/21 Pages) Intersil Corporation – Flexible Single Ended Current Mode PWM Controller

Typical Application - 48V Input Dual Output Flyback, 3.3V @ 2.5A, 1.8V @ 1.0A
SP1 SP2
VIN+ P9
R1
36V TO 75V
C1
R2
VIN-
SYNC
R6 ^R5
Q3
VR1
R24
C2
C18
CR6
C3
TP1
Q1
T1
ISOLATION
XFMR
CR5
R21
C21 + C15
C5
CR2
C17
CR4
+
C19
C22 ⁺
C20
+3.3V
+ C16
+1.8V
RETURN
R16
R17
R18
C6
U2
R19
C14
R4
R3
R23
R25
Q2
C4
D1
TP3
TP5
D2
R22
U3
TP2
U1
GATE
ISENSE
SYNC
SLOPE
UV
OV
RTCT
ISET
VC
PGND
VCC
VREF
LGND
SS
COMP
VFB
R26
R27
R8
R7
R9
R10
C7
C8
R12
R11
C9
R13
R15 _C13
R20
R14
TP4
C12
C11
C10