[ PowerNut ]
  • Low-power PIC processor
  • Programmable power on/off scheduling and monitoring
  • Provides 5VDC regulated or "raw" power
  • 5V high-efficiency switching regulator
  • Switch 5-30VDC up to 1A
  • Clocked Serial Interface
  • Screw terminal connectors
  • Dimensions 2" x 3"

The new PowerNut simplifies the design of power sensitive applications by controlling the input power to a single board computer or other device. The PowerNut provides developers with voltage regulation, power on/off time scheduling and voltage monitoring features on a platform smaller than a credit card.

This new accessory can control supply voltage from sources such as solar panels or batteries to downstream devices at up to 1A. The PowerNut can provide either regulated 5VDC using its onboard 7-30VDC regulator or it can furnish power directly from the source (5-30VDC) to downstream devices. By sending commands to the PowerNut, the main controller has the ability to monitor the input voltage and turn off power to itself (or another device) for a specified period of time.

Additionally, the PowerNut can also be used as a "smart" solid-state relay to control power to subsystems that do not contain the primary system controller. Using an ultra-low quiescent current regulator and a low-power PIC processor, the PowerNut never sleeps and its clocked serial port can be used to wake up downstream devices. The PIC's built-in analog to digital converter can also be used for low battery detection.

A typical application would be a remote, power sensitive, system that is required to perform a periodic task. Sending commands to the PowerNut, the primary controller can power down for period of time, and then automatically wake up. This allows any single-board controller, regardless of its power management capabilities, to be used.

For $39 in single quantity, the PowerNut enables JK microsystems' line of cost-effective, embedded x86 single board computers to be utilized in many applications with tight power budgets.

The PowerNut Development Kit (99-0100) includes a PowerNut controller, Connector Kit, LED, Setup Guide, Schematic and CD with utilities, sample programs and documentation.

[ PowerNut Technical Info ]

[ PowerNut Mechanical Drawing ]

 

 

 

 

 

 

 

 

Jumpers and Connectors

JP1 Enable/disable for reverse polarity protection
JP3 Downstream Configuration Jumpers
J1 Power Input Connector
J2 Power Output Connector location

Specifications

Processor Low-power PIC, 32768 Hz
Supply Voltage 5-30 VDC if not using the on-board 5 volt switching regulator
7-30 otherwise
Current Consumption with no load attached Downstream shutoff: 180µA max (58 to 100µA typical)
Downstream active, on-board 5V disabled, Vin=5V, 3.3mA
Downstream active, on-board 5V disabled, Vin=30V, 7.5mA
Downstream active, on-board 5V active, Vin=7V, 11mA
Downstream active, on-board 5V active, Vin=30V, 15mA
Operating Temperatur -20 to +85 °C
Humidity 5 - 90% non-condensing
Physical dimensions 2" x 3" x 0.6"
(50.80mm x 76.20mm x 1.58mm)

Mating Connectors

Connector Mfg MFG P/N JK micro P/N
J3 (1x6) Molex 22-01-3067
Oupiin 4071-6H 28-0085
Pins (for 1x6) Molex 08-50-0114
Oupiin 4071-PIN-T 28-0013
Shell (2x5) Molex 22-55-2101
Oupiin 4072-2X05H 28-0030
Shell (2x13) Molex 22-55-2261
Oupiin 4072-2X013H 28-0031
Pins (for 2x5,2x13) Molex 16-02-0096
Oupiin 4072-PIN-T 28-0033

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