HV440 Supertex, Inc., HV440 Datasheet - Page 3

• Manufacturer Part Number: HV440
• Description: High-voltage Ring Generator
• Manufacturer: Supertex, Inc.

Block Diagram
Pin Description
V
V
V
V
V
GND
PGND
P
N
EN
Mode
HV
V
V
P
N
PP1
PP2
NN1
NN2
DD
IN
IN
psen
nsen
gate
gate
OUT
Positive high voltage supply.
Positive gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should be connected between V
and V
Negative high voltage supply.
Negative gate voltage supply. Generated by an internal linear regulator. A 0.1µF capacitor should be connected between V
and V
Logic supply voltage.
Low voltage ground.
High voltage power ground.
Logic control input. When mode is high, logic input high turns OFF output high voltage P-Channel.
Logic control input. When mode is high, logic input high turns ON output high voltage N-Channel.
Logic enable bar input. Logic low enables IC.
Logic mode input. Logic low activates 200nsec deadband. When mode is low, N
P-Channels. Pin is not used and should be connected to V
High voltage output. Voltage swings from V
Pulse by pulse over current sensing for internal P-Channel MOSFET.
Pulse by pulse over current sensing for internal N-Channel MOSFET.
Gate drive for external P-channel MOSFET.
Gate drive for external N-channel MOSFET.
PP1
NN1
Mode
GND
.
V
.
P
N
EN
DD
IN
IN
Logic
PP1
Translator
Translator
Voltage
Voltage
to V
Level
Level
High
High
NN1
.
3
Linear
Linear
DD
V
Reg
Reg
DD
or ground.
Current
Current
Sense
Sense
Driver
Driver
and
and
IN
turns on and off the high voltage N- and
V
P
V
HV
P
V
V
N
V
V
PP1
psen
gate
PP2
GND
NN1
NN2
gate
nsen
OUT
HV440
032105
NN2
PP2