HV3922
High Voltage PIN Diode Driver
Ordering Information
Package
Device
HV3922
20 Pin Ceramic DIP
HV3922C
28 Pin Ceramic J-Lead
HV3922DJ
Features
❏
Processed with HVCMOS
®
technology
❏
5V CMOS logic – low power dissipation
❏
DMOS output voltage up to 220V
❏
Low power level shifting – 5V to 220V
❏
Source current 1.7mA
❏
Output fault detection
❏
Latched data output
General Description
The HV3922 is a monolithic high-voltage quad-output driver that
is designed to be used in conjunction with the Supertex
VN2222NC*, a separate N-channel DMOS FET quad array,
whose device characterics are briefly described below. Together,
these devices per-form a 220V push-pull function that is espe-
cially suited for driving PIN diodes in applications such as fre-
quency-hopping radios, microwave communication systems and
phased array radar.
Used as a microwave or RF switch, the HV3922 has 4 high-
voltage P-channel outputs: PD
0
, PD
1
, PD
2
and PD
3
. Additional
controls are Chip Select (CS) and Output Enable (OE) functions.
The HV3922 also has an output fault detection function that
protects the outputs from damage by putting them into a high
impedance state when a short is detected. The HV3922 provides
4 low-voltage outputs—DRV
0
, DRV
1
, DRV
2
and DRV
3
—that drive
the gates of the 4 N-channel FETs in the VN2222NC device. See
the diagram below for an example of the push-pull output struc-
ture that these two devices provide.
For detailed electrical characteristics of the VN2222NC, please
see the data sheet in Chapter 8. Currently, the HV3922 is
available in through-hole and surface-mount ceramic packages
that are suitable for military applications, while the VN2222NC is
offered in ceramic quad and discrete packages (VN2224N2 and
VN2224N3). For commercial product availability, please consult
the factory.
Absolute Maximum Ratings
Supply Voltage, V
CC
Logic Input Voltage
Supply Voltage V
LL
Supply Voltage V
PP
Max Power Dissipation
Junction Temperature
Storage Temperature Range
Operating Temperature Range
Lead Soldering Temperature for 10 Seconds
-0.5V to +7.0V
-0.3V to VCC + 0.3V
-5.0V
+230V
0.8W
+150
°C
-65
°C
to +150
°C
-55
°C
to +125
°C
+300
°C
Push-Pull Configuration
V
CC
CS
ENA
V
HIGH
FAULT
220V
Push-Pull
Output
PD0
•
•
PD3
DRV0
•
•
DRV3
5V
Digital
Control
4
HV39
OE
D0 – D3
*VN2222NC
(1 of 4
FETs)
* VN2222NC is an N-channel DMOS FET quad array recommended for use in
conjunction with HV39 outputs to form four 220V push-pull outputs. Each of the
four devices has a max R
DS(ON)
of 1.25Ω, min I
D(ON)
of 5.0 amps, and BV
DSS
of 220V.
GND
V
LL
V
LL
12/13/01
Supertex Inc. does not recommend the use of its products in life support applications and will not knowingly sell its products for use in such applications unless it receives an adequate "products liability
indemnification insurance agreement." Supertex does not assume responsibility for use of devices described and limits its liability to the replacement of devices determined to be defective due to
1
workmanship. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications, refer to the
Supertex website: http://www.supertex.com. For complete liability information on all Supertex products, refer to the most current databook or to the Legal/Disclaimer page on the Supertex website.
SUPERTEX [ Supertex, Inc ]
