PSC128-7LIRPCD Power-One, PSC128-7LIRPCD Datasheet - Page 2

• Manufacturer Part Number: PSC128-7LIRPCD
• Description: Psc Series Extended Positive Switching Regulators Industrial
• Manufacturer: Power-One

Part Number Description
Positive switching regulator in case C03 .................... PSC
Nominal output voltage in volt (5A for 5.1 V) ......... 5A - 36
Nominal output current in ampere ............................ 8 - 12
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 in the form of flux. During the off period, this energy
forces the current to continue flowing through the output, to
the load and back through the freewheeling diode. Regula-
tion is accomplished by varying the on to off duty ratio of the
power switch.
Fig. 1
Block diagram
REV. MAY 12, 2004
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 128-7LiPC = A positive switching regulator with a 12 V, 8 A output, ambient temperature range of
1
1
Fuse fitted for option
(option) ................................................... P
Fuse
1
A
1
.................. R
Option D
V
t
Page 2 of 13
Positive Switching Regulators (Industrial)
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 trans-
former with rectifier). To optimise customer’s needs, addi-
tional options and accessories are available.
Control circuit
Option P
V
o
PSC Series Extended Data Sheet
Option C
PSC 12 8 -7 L i R P C D
03018
Vo+
D (option)
i
R
G
Go–
I
o
V
o