User Manual

Powersolve Electronics Ltd. 8A Arnhem Road, Newbury, RG14 5RU. England
Tel: [phone] Fax: [phone] Email: [e-mail]
www.powersolve.co.uk
High Density DC-DC Modules
Output Voltage and Current Ratings
Pin Function
1 +Vin
2 ON/OFF
3 -Vin
4 -Vout
5 -Sense
6 Trim
7 +Sense
8 +Vout
All specifications typical at nominal line, full load and 25°C unless otherwise stated.
Pin Connection
All dimensions in inches (mm)
Tolerances: Inches x.xx ±0.02 x.xxx ±0.010
Millimeters x.x ±0.5 x.xx ±0.25
MODEL INPUT OUTPUT OUTPUT INPUT CURRENT % EFF.
VOLTAGE VOLTAGE CURRENT max. NO LOAD FULL LOAD
AS75-48S1V0 1.0 VDC 30A 60mA 753mA 83
AS75-48S1V2 1.2 VDC 30A 60mA 882mA 85
AS75-48S1V5 1.5 VDC 30A 60mA 1090mA 86
AS75-48S1V8 1.8 VDC 30A 60mA 1293mA 87
AS75-48S2V5 36-75 VDC 2.5 VDC 25A 60mA 1463mA 89
AS75-48S3V3 3.3VDC 20A 60mA 1528mA 90
AS75-48S05 5VDC 15A 60mA 1736mA 90
AS75-48S12 12VDC 7A 70mA 1902mA 92
NOTE: Nominal Input Voltage 48VDC
Mechanical and Connection Details
Remote ON/OFF Control
The AS75 Series allows the user to switch the module on and off electronically with the remote on/off feature.
The AS75 Series are available with “positive logic” or “negative logic” (option).
Logic Table
Logic State
(Pin 2)
Negative
Logic
Positive
Logic
Logic low-
Switch closed
Module on Module off
Logic high-
Switch open
Module off Module on
External Output Trim
The output can be trimmed externally (±10%) using a fixed resistor or
a trimpot as shown.
Output Noise
The output noise is measured with a 10µF tantalum and a 1.0µF
ceramic capacitor across the output.
+Vout
-Vout