PSK1212-9 POWER ONE, PSK1212-9 Datasheet - Page 3

• Manufacturer Part Number: PSK1212-9
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of PSK1212-9

• Output Current: 12A
• Input Voltage: 18 to 144V
• Output Voltage: 12V
• Number Of Outputs: 1
• Output Power: 144
• Screening Level: Commercial
• Operating Temperature Min Deg. C: -40C
• Operating Temperature Max Deg. C: 71C
• Product Length (mm): 168.5mm
• Product Depth (mm): 111mm
• Product Height (mm): 80mm
• Mounting Style: Screw
• Pin Count: 15
• Lead Free Status / Rohs Status: Not Compliant

Product Marking
Type designation, applicable safety approvals and recognition
marks, warnings, pin allocation, Power-One patents and
company logo.
Identification of LED, test sockets, and optional potentiometer.
Functional Description
The switching regulators are using the buck converter
topology. The input is not electrically isolated from the output.
During the on period of the switching FET, 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 chocke to the load and
Part Number Description
Positive switching regulator in case S01, K01 ....... PSS, PSK
Nominal output voltage in volt .................................... 3.3
Nominal output current in ampere ................................ 9
Operational ambient temperature range T
Options:
Example:
Fig. 1
Block diagram
BCD20029-G Rev AA, 28-Apr-09
1
2
Option P excludes R-features and vice versa.
G is always placed at the end of the part number. Consult Power-One for availability!
V
i
I
i
Inrush current limitation ..................................... E
– 10 to 50 °C ..................................................... -2
– 25 to 71 °C ..................................................... -7
– 40 to 71 °C (optional) ..................................... -9
Potentiometer to adjust V
Thyristor crowbar ............................................... C
Cooling plate large/small ............................. B, B1
RoHS-compliant for all 6 substances .............. G
PSS 129-7EPCB = Positive switching regulator with output 12 V, 9 A, ambient temperature range of –25 to 71 °C,
inrush current limitation, potentiometer, crowbar, and large cooling plate option B.
Gi–
Vi+
30
32
26
28
24
®
Fuse
o
1
............................... P
A
C
i
–
–
Page 3 of 20
48
25
2
Input voltage range, nominal output voltage and current,
protection degree, batch no., serial no., and data code
including production site, version (modificationstatus), and
date of production.
back
accomplished by varying on/off duty cycle.
These regulators are ideal for applications, where an input to
output isolation is not necessary or where it is already provided
by an external front end, e.g., a transformer with rectifier. To
optimize customer’s needs, various options and accessories
are available.
Option C
through
Positive Switching Regulators
Option P
Control
circuit
the
PSS, PSK Series Data Sheet
freewheeling
C
o
+
+
PSK 12 12 -7 E P C B G
–
03024a
diode.
18
20
22
14
16
10
4
6
8
www.power-one.com
S+
Vo+
T
i
R
S–
Go–
Regulation
I
o
V
o
is