66 RabbitCore RCM3000Table B-1 lists the electrical, mechanical, and environmental specifications for the Proto-typing Board.B.3 Power SupplyThe RCM3000 requires a regulated 3.3 V ± 0.15 V DC power source to operate. Depend-ing on the amount of current required by the application, different regulators can be usedto supply this voltage.The Prototyping Board has an onboard +5 V switching power regulator from which a+3.3 V linear regulator draws its supply. Thus both +5 V and +3.3 V are available on thePrototyping Board.The Prototyping Board itself is protected against reverse polarity by a Shottky diode at D2as shown in Figure B-3.Figure B-3. Prototyping Board Power SupplyTable B-1. RCM30/31/32XX Prototyping Board SpecificationsParameter SpecificationBoard Size 5.30" × 6.775" × 1.00" (135 mm × 172 mm × 25 mm)Operating Temperature –20°C to +60°CHumidity 5% to 95%, noncondensingInput Voltage 8 V to 24 V DCMaximum Current Draw(including user-added circuits)800 mA max. for +3.3 V supply,1 A total +3.3 V and +5 V combinedPrototyping Area 2.0" × 3.5" (50 mm × 90 mm) throughhole, 0.1" spacing,additional space for SMT componentsStandoffs/Spacers 5, accept 4-40 × 3/8 screws" # "! K # K K K$%" $" # "# Downloaded from Elcodis.com electronic components distributor
