iru431l International Rectifier Corp., iru431l Datasheet - Page 3

• Manufacturer Part Number: iru431l
• Description: Low -voltage Adjustable Precision Shunt Regulator
• Manufacturer: International Rectifier Corp.

The deviation parameters, V
fined as the differences between the maximum and the
minimum values obtained over the rated temperature
range. The average full range temperature coefficient of
the reference input voltage is defined as:
PIN DESCRIPTIONS
BLOCK DIAGRAM
Rev. 2.0
08/05/03
5-PIN
1, 2
?aV
4
3
5
REF
? =
3-PIN
NA
(
1
2
3
V
V
REF(258C)
REF(DEV)
DT
Ref
PIN SYMBOL
A
1.24V
)
Cathode
Anode
REF(DEV)
3 10
Ref
NC
Figure 2 - Simplified block diagram of the IRU431L.
6
and I
+
Resistors from the Ref pin to the Cathode pin and to ground form a divider
that sets the output voltage.
The output of the shunt regulator. A capacitor of 1mF minimum value must
be connected from this pin to Anode pin to insure unconditional stability.
Ground pin. This pin must be connected to the lowest potential in the
system and all other pins must be at higher potential with respect to this
pin.
These pins are not connected internally.
REF(DEV)
PIN DESCRIPTION
are de-
www.irf.com
Where:
?aV
DT
device.
aV
minimum V
the lower temperature.
A
REF
REF
is the rated operating free air temperature of the
? unit is ppm/8C
can be positive or negative depending on whether
Cathode
Anode
REF
or maximum V
REF
respectively occurs at
IRU431L
3