HV9605 Supertex Inc, HV9605 Datasheet - Page 5

• Manufacturer Part Number: HV9605
• Description: High Voltage Current Mode PWM Controller for ISDN Equipment
• Manufacturer: Supertex Inc

Typical Application Circuit
Functional Block Diagram
48V INPUT
+
-
+V
STOP
START
Oscillator
Clock
IN
RT
+
V
START
H=SWITCH CLOSED
L= SWITCH OPEN
+
–
C
+V
STOP
START
Bandgap
Reference
Generator
CLK
D
IN
RT
V
CLR
DD
Q
Q
REF
Enable
REF
HV9605
NI
FB
NI
Regulator
Start-Up
COMP
STATUS
PGND
SGND
FB
+
–
OUT
V
CS
A
DD
5
COMP
+
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: [phone] • FAX: [phone]
www.supertex.com
-
C
Bootstrap Good
PWM Good
V
REF
S
R
TN2524N8
TN2124K1
Q
+
+
–
or
C
UVLO
+
MOSFET Driver
V
DD
STATUS
PGND
SGND
OUT
V
CS
DD
+
ISOLATED
OUTPUT
40V
RESET
+5.0V
REFERENCED
TO INPUT (-)
TERMINAL
+
-
HV9605
11/30/98
11/30/98