Internal Power Supplies
For Medical/Industrial Applications
GB30 Family
GB30 Application Note v0619 Copyright © 2019 SL Power Electronics Corp. All rights reserved.
Page 2
OVERVIEW
FEATURES
MODEL SELECTION
Size
GB30 is a single output AC/DC power supply designed to fit into the 1U chassis. 1U is a rack unit or unit of measure defined as 1.75
inches (45 millimetres) height. While designing a system with a power supply, the engineer must consider the heat dissipations from
integrated components and ensure enough clearance between the system components and the chassis or enclosure parts. The small
dimensions of the GB30 1.9” x 3.6” x 1.0” package (48.2mm x 91.9mm x 25.4mm) allow to easily integrate it into the 1U chassis with
enough space for airflow or convection cooling from top and bottom surfaces.
Power vs. Temperature
The GB30 series power supplies are capable to provide up to 30 Watts of power in a convection-cooled environment up to 50°C ambi-
ent. At higher operating temperatures, refer to the Power Derating curve to avoid the internal over temperature protection (OTP)
GB30 is a superior performance 30 Watt AC to DC converter, designed for medical/industrial applications. It is highly efficient (meets
DOE level VI) and can effortlessly integrate in any system that requires 30 Watts of convection cooled power. All models are CE marked
to low voltage directive and approved to CSA/EN/IEC/UL62368-1 and CSA/EN/IEC/UL60601-1 3.1 Edition. It meets Heavy Industrial
and IEC60601-1-2 4
th
Edition Levels of EMC and meets Class B Radiated & Conducted Emissions with margin. The GB30 is offered in
both Class I and Class II input.
This application note will explain the features, benefits and considerations while using GB30 in medical/industrial devices or systems.
*Change “K” to “C” for Class II input.
*Efficiency is Typical at 230VAC, 25°C. See Charts in datasheet for load conditions.
*Check datasheet for latest model information.
Model
Number
Output
Voltage
Output Current
Efficiency
OVP
Convection Threshold
GB30S05K01 5.0V 4.0A 86% 6.7V ± 0.7V
GB30S07K01 7.5 V 3.0A 88% 10.1V ± 1.1V
GB30S09K01 9.0V 3.0A 88% 12.1V ± 1.3V
GB30S12K01 12V 2.5A 88% 16.2V ± 1.8V
GB30S15K01 15V 2.0A 88% 20.2V ± 2.2V
GB30S18K01 18V 1.67A 88% 24.3V ± 2.7V
GB30S24K01 24V 1.33A 89% 32.4V ± 3.6V
GB30S48K01 48V 0.63A 88% 56.8V ± 2.1V