Robin Z5xx Datasheet - Toradex

Robin Z5xx Datasheet5.2. Power SupplyThe Robin modules are designed to run from a single power supply with a wide nominal input voltagerange of +5V to +12V. Two power supplies are optional: a +5V standby power supply and a +3Vbattery power supply (used to power the real-time clock on the module).If the standby power supply is not provided by the carrier board, the Robin module will generate therequired standby power from the main power supply using a linear voltage regulator. Hence, the Robinmodule supports both the S4 and S5 power states even if the standby power supply is absent, as longas the main power supply is present.The RTC power supply is powered in parallel by both the standby power supply and the 3V batterypower supply. This ensures that the real-time clock is running as long as either one of these powersupplies is present. Important: a diode must be placed between RTC Battery and the RTC Voltage pinof the module connector.5.2.1 AC Power AdaptorDepending upon the specific hardware configuration, it is likely that the power supply to the carrierboard will be forwarded directly to the Robin module (this is true for Lily V1.0, V1.1, V2.0, V2.1 andDaisy V1.0, V1.1). If an AC power adaptor is being used, please ensure that its output voltage is neverbeyond the limits of the module and carrier board. Simple AC power adaptors may have significantlyhigher output voltages than their nominal voltage in no-load operation; usage of such power adaptorscan damage both the Robin Z5xx module and carrier board.Toradex AG l Altsagenstrasse 5 l 6048 Horw l Switzerland l +41 41 500 48 00 l www.toradex.com l info@toradex.com Page | 24