PSC126-7LIRPCD Power-One, PSC126-7LIRPCD Datasheet - Page 2

• Manufacturer Part Number: PSC126-7LIRPCD
• Description: Psc Series Extended Positive Switching Regulators Rugged
• Manufacturer: Power-One

REV. MAY 12, 2004
Part Number Description
Positive switching regulator in case C03 ................... PSC
Nominal output voltage in volt ................................ 12 - 48
Nominal output current in ampere .................................. 6
Operational ambient temperature range T
Input filter (option) ............................................................ L
Inhibit input ....................................................................... i
Control input for output voltage adjustment
Potentiometer
Thyristor crowbar (option) .............................................. C
Input/output voltage monitor (option) ........................ D/D1
1
Example:
Functional Description
The switching regulators are designed using the buck con-
verter topology. See also: Technical Information: Topolo-
gies . The input is not electrically isolated from the output.
During the on period of the switching transistor, current is
transferred to the output and energy is stored in the output
choke. During the off period, this energy forces the current
to continue flowing through the output, to the load and
back through the freewheeling diode. Regulation is ac-
complished by varying the on to off duty ratio of the power
switch.
Fig. 1
Block diagram
Feature R excludes option P and vice versa.
V
i
I
i
–25 to 71°C ......................................................... -7
–40 to 71°C (option) ............................................ -9
Gi–
Vi+
–25 to 71°C, input filter, inhibit input, output adjust potentiometer and thyristor crowbar.
PSC 126-7LiPC = A positive switching regulator with a 12 V, 6 A output, ambient temperature range of
1
(option) ................................................... P
Fuse
1
A
1
.................. R
Option D
V
t
Page 2 of 13
Positive Switching Regulators (Rugged)
These regulators are ideal for a wide range of
applications, where input to output isolation is not
necessary, or where already provided by an external front
end (e.g. a transformer with rectifier). To optimise
customer’s needs, additional options and accessories are
available.
Control circuit
Option P
V
PSC Series Extended Data Sheet
o
Option C
PSC 12 6 -7 L i R P C D
03018
Vo+
D (option)
i
R
G
Go–
I
o
V
o