PSS, PSK Series Data Sheet
Positive Switching Regulators
®
111
4.4"
3 U
111
4.4"
3 U
80
168
6.6"
60
2.4"
12 TE
3.2"
168
6.6"
16 TE
Features
Description
• Input voltage up to 144 VDC
The PSS/PSK Series of positive switching regulators is
designed as power supplies for electronic systems, where no
input-to-output isolation is required. Their major advantages
include a high level of efficiency, high reliability, low output
ripple, and excellent dynamic response. Models with input
voltages up to 144 V are specially designed for secondary
switched and battery-driven mobile applications. The
converters are suitable for railway applications according to
EN 50155 and EN 50121.
• Single output of 3.3 to 48 VDC
• No input-to-output isolation
• High efficiency up to 97%
• Extremely wide input voltage range
• Low input-to-output differential voltage
• Very good dynamic properties
• Input undervoltage lockout
Two type of housings are available allowing operation up to
71 °C. They are designed for insertion into a 19" DIN-rack or
for chassis mounting. Replacing the heat sink by an optional
cooling plate, allows chassis or wall mounting on top of a metal
surface, acting as heat sink.
• Active current sharing for parallel operation
• Output voltage adjustment, inhibit, and sense lines
• Continuously no-load and short-circuit proof
• All boards are coated with a protective lacquer
Various options are available to adapt the converter to different
applications. Connector type: H15 or H15S4, depending on
output current.
Table of Contents
Page
Page
Description ............................................................................ 1
Model Selection .................................................................... 2
Functional Description .......................................................... 3
Electrical Input Data.............................................................. 4
Electrical Output Data ........................................................... 6
Auxiliary Functions .............................................................. 10
Electromagnetic Compatibility (EMC) ................................. 12
Immunity to Environmental Conditions ............................... 13
Mechanical Data ................................................................. 14
Safety and Installation Instructions ..................................... 16
Description of Options ........................................................ 17
Accessories......................................................................... 19
EC Declaration of Conformity ............................................. 20
BCD20029-G Rev AA, 28-Apr-09
Page 1 of 20
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