min.
0.89 max.
dia.
typ.
鈩?/div>
(0.2鈩?typical)
鈥?LOW OUTPUT NOISE VOLTAGE
45藲
TO39 PACKAGE
PIN 1 = REF
PIN 2 = CATHODE
PIN 3 = ANODE
DESCRIPTION
The IP431A circuit is a monolithic three terminal
programmable shunt regulator diode. This voltage
reference operates as a low temperature coefficient
zener which is programmable between Vref (2.5V)
and 36 volts using two external resistors. The
device has a wide operating current range of 1mA to
100mA and a typical dynamic impedance of 0.2鈩?
Active output circuitry provides a very sharp turn-on
characteristic making these devices excellent
replacements for Zener Diodes in many
applications. Being a shunt regulator it can be used
as either a positive or negative voltage reference.
ABSOLUTE MAXIMUM RATINGS
(T
case
= 25擄C unless otherwise stated)
V
KA
I
K
I
REF
P
D
T
J
T
A
T
STG
Cathode To Anode Voltage
Cathode Current Range
Reference Input Current Range
Power Dissipation @ T
A
= 25擄C
Derate Above 25擄C
Maximum Operating Junction Temperature
Operating Ambient Temperature Range
Storage Temperature Range
Telephone +44(0)1455) 556565. Fax +44(0)1455) 552612.
Website:
http://www.semelab.co.uk
E-mail:
sales@semelab.co.uk
37V
- 100 to +150mA
- 0.05 to +10mA
TO39 Package
1.5W
15mW/擄C
150擄C
- 55 to +125擄C
- 65 to 150擄C
Prelim. 3/99
Semelab plc.
1
2
