HA16138PS Datasheet, PDF (3/20 Pages) Hitachi Semiconductor – AC/DC Switching Converter Controller IC With High-Voltage Power MOS FET

Block Diagram
VDD
HA16138PS
VDD
CT
Oscillator
+
−
ON/OFF
Comp.
Vref
Generator
1/4 Divider
CK
+
−
DQ
Vref
Frequency Down
Comp.
FB
−
1/3
+
E-AMP
Attenuator
VDD
RQ
+
−
S
OVP Latch
TSD
UVL
COMP
UVL
UVL
Starter
DRAIN
Driver
FF
+
CS ^−
Comp.
Delay
Leading Edge
Vref
Blanking
+
−
Soft Start
SOURCE
Rcs
3