1

High Voltage Current

Regulators

The IXYS IXC series of high voltage

current regulators consists of non-

switchable, 2-terminal, AC and DC

current regulators.

Features

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

Applications

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

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

of

providing

other

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

configuration

will

give

bidirectional operation. Specific

bidirectional applications would be

series surge protection and soft start-

up applications from AC mains.

IXC Series

V

AK

=

450

V

I

A(P)

=

2 - 60 mA

R

k

Ω

Ω

Ω

Ω

Ω

TO-252 AA

(IXCY)

TO-220 AB

(IXCP)

Current Regulator Nomenclature

Parts can be ordered by using the following

nomenclature:

IXCP10M45A

(Example)

IX

IXYS

C

Current Regulator

Package style

P

TO-220 AB

Y

TO-252 (D-PAK)*

10

Current Rating,

10 = 10 mA

M

Current Level

A = Amps, M = mA,

U =

µA

45

Voltage rating

45 = 450 V

Preliminary Data Sheet

Fig. 1. Current Regulator Output

Characteristics

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.

Fig. 2. Block diagram for the non-switchable regulator

DS98703A (7/04)

4

1

3

4

12

3

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