Internal Power Supplies

For Medical/Industrial Applications

GB40 Family

Page 2

OVERVIEW

FEATURES

MODEL SELECTION

Size

GB40 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 GB40 2” x 4” x 1.0” package (50.8mm x 101.6mm 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 GB40 series power supplies are capable to provide up to 40 Watts of power in a convection-cooled environment up to 50°C

ambient. At higher operating temperatures, refer to the Power Derating curve to avoid the internal over temperature protection (OTP)

shutting down the power supply during excessive temperature excursions. The over temperature protection is based on an auto-recov-

ery principle with the hysteresis of 30°C.. See the Proper Use and Thermal Considerations sections of this application note.

GB40 is a superior performance 40 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 40 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

Edition Levels of EMC and meets Class B Radiated & Conducted Emissions with margin. The GB40 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

GB40S05K01 5.0V 5.0A 86% 6.7V ± 0.7V

GB40S09K01 9.0V 4.0A 88% 12.1V ± 1.3V

GB40S12K01 12V 3.4A 89% 16.2V ± 1.8V

GB40S15K01 15V 2.7A 89% 20.2V ± 2.2V

GB40S18K01 18V 2.27A 89% 24.3V ± 2.7V

GB40S24K01 24V 1.7A 89% 32.4V ± 3.6V

GB40S48K01 48V 0.83A 88% 56.8V ± 2.1V