High Voltage Current
Regulators
Preliminary Data Sheet
The IXYS IXC series of high voltage
current regulators consists of non-
switchable, 2-terminal, AC and DC
current regulators.
Non-switchable regulators
This is a family of extremely stable,
high voltage current regulators with
the typical output characteristic shown
in Figure 1. The temperature stability
is based on a threshold compensation
technique and uses IXYS' most
recently developed high voltage
process. The complete family will be
capable
intermediate current levels which can
be programmed on-chip during the
manufacturing phase.
Specific applications are current
sourcing in PABX applications,
telephone line terminations, surge
protection and voltage supply
protection. Two devices in a back-to-
back
bidirectional operation. Specific
bidirectional applications would be
series surge protection and soft start-
up applications from AC mains.
© 2004 IXYS All rights reserved
Fig. 1. Current Regulator Output
configuration
Characteristics
of
providing
will
other
give
AC non-switchable regulators
This family consists of two DC current
regulators connected internally in
series to regulate the current to a
specified value in both directions. Its
output characteristics in quadrants 1
and 3 are the same as shown in Figure
1 so that the current regulation is also
the same in both directions. Parts are
only available in the TO-220 package.
Current Regulator Nomenclature
Parts can be ordered by using the following
nomenclature:
IXCP10M45A
IX
C
P
Y
10
M
45
Fig. 2. Block diagram for the non-switchable regulator
IXC Series
(Example)
IXYS
Current Regulator
Package style
TO-220 AB
TO-252 (D-PAK)*
Current Rating,
10 = 10 mA
Current Level
A = Amps, M = mA,
U = µA
Voltage rating
45 = 450 V
1
Features
Applications
Extremely stable current character-
istics (±50 ppm/K)
Minimum of 450 V breakdown
Easily configured for bidirectional
current sourcing
40 W continuous dissipation
International standard packages
JEDEC TO-220 and TO-252
PABX current sources
Telephone line terminations in
PABXs and modems
Highly stable voltage sources
Surge limiters and voltage protection
(DC and AC)
Instantaneously reacting resetable
fuses
Waveform synthesizers
Soft start-up circuits
TO-252 AA
(IXCY)
1
3
V
I
R
A(P)
AK
DYN
4
=
=
= 9 - 900 kΩ Ω Ω Ω Ω
2 - 60 mA
1 2
TO-220 AB
(IXCP)
DS98703A (7/04)
450
3
V
4