ISL6431A Datasheet, PDF (2/10 Pages) Intersil Corporation – Advanced Pulse Width Modulation (PWM) Controller for Broadband Applications

Block Diagram
ISL6431A
SAMPLE
AND
HOLD
+
-
OC
COMPARATOR
VCC
POR AND
SOFTSTART
+
0.8V
-
FB
COMP/OCSET
20µA
Typical Application
ERROR
AMP
+
-
PWM
COMPARATOR
+
-
GATE
CONTROL
PWM ^LOGIC VCC
OSCILLATOR
FIXED 300kHz
GND
V_CC
C_DCPL
C_BULK
R_OCSET
R_F
C_F
VCC
5
BOOT
1
COMP/OCSET
ISL6431A
7
2
8
UGATE
PHASE
C_I
63
4 ^LGATE
FB
GND
D_BOOT
C_HF
C_BOOT
L_OUT
C_OUT
+V_O
R_OFFSET
R_S
BOOT
UGATE
PHASE
LGATE
2