PSA_03 Datasheet, PDF (1/13 Pages) Power-One – Positive Switching Regulator

PSA Series Extended Data Sheet
Positive Switching Regulator (Rugged)
25
1.0"
50
2.0"
70
2.8"
Input voltage up to 144 V DC
Single output of 12...48 V DC
No input to output isolation
• High efficiency up to 95%
• Extremely wide input voltage range
• Very good dynamic properties
• Input undervoltage lock-out
• External output voltage adjustment and inhibit
• Two temperature ranges
• Continuous no-load and short-circuit proof
• No derating
Safety according to IEC/EN 60950
Summary
The PSA series of positive switching regulators is de-
signed as power supply modules for electronic systems.
Their major advantages include a high level of efficiency
that remains virtually constant over the entire input range,
high reliability, low ripple and excellent dynamic response.
Modules with input voltages up to 144 V are specially de-
signed for battery-driven mobile applications. The case
design allows operation at nominal load up to 71°C with-
out additional cooling.
Type Survey and Key Data
Table 1: Type survey
Output
voltage
U_{o nom} [V DC]
12
Output
current
I_{o nom} [A]
1.5
Input
voltage range
U_i [V DC] ¹
18...144
Input
voltage
U_{i nom} [V DC]
60
Efficiency ²
h_min [%]
86
h_typ [%]
87
Type
designation
PSA 121.5-7iR
15
1.5
22...144
60
87
89
PSA 151.5-7iR
24
1.5
31...144
60
92
93
PSA 241.5-7iR
36
1.2
44...144
80
94
95
PSA 361-7iR
48
1.0
58...144
80
94
95
PSA 481-7iR
1 _{Surges uo to 156 V for 2 s. See also: Electrical Input Data: ∆Uio min.}
2 _{Efficiency at Ui nom and Io nom.}
Non standard input/output configurations or special custom adaptions are available on request.
See also: Commercial Information: Inquiry Form for Customized Power Supply.
Options
-9, P, Y
Table of Contents
Page
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 1
Type Key .......................................................................... 2
Functional Description ..................................................... 2
Electrical Input Data ........................................................ 3
Electrical Output Data ..................................................... 4
Auxiliary Functions .......................................................... 6
Page
Electromagnetic Compatibility (EMC) ............................. 8
Immunity to Environmental Conditions ........................... 9
Mechanical Data ............................................................ 10
Safety and Installation Instructions ............................... 10
Description of Options ................................................... 12
Accessories ................................................................... 12
EC Declaration of Conformity ....................................... 13
REV. SEP 23, 2003
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