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Product Datasheet
P1110 – 915 MHz RF Powerharvester™ Receiver
DESCRIPTION
The Powercast P1110 Powerharvester receiver is an RF energy harvesting device that converts RF to DC. Housed in a compact SMD package, the P1110 receiver provides RF energy harvesting and power management for battery and capacitor recharging. The P1110 converts RF energy to DC and provides the energy to the attached storage element. When an adjustable voltage threshold on the storage element is achieved, the P1110 automatically disables charging. A microprocessor can be used to obtain data from the component for improving overall system operation.
APPLICATIONS
• Wireless sensors - Industrial Monitoring - Smart Grid - Structural Health Monitoring - Defense - Building automation - Agriculture - Oil & Gas - Location-aware services Wireless trigger Low power electronics
• •
FUNCTIONAL BLOCK DIAGRAM
FEATURES
• • • • • • • • • • High conversion efficiency, >70% Low power consumption Configurable voltage output to support Li-ion and Alkaline battery recharging Operation from 0V to support capacitor charging Received signal strength indicator No external RF components required Internally matched to 50 ohms Wide operating range Operation down to -5 dBm input power Industrial temperature range RoHS Compliant
GND
GND
GND
PIN CONFIGURATION
Powerharvester and Powercast are registered trademarks of Powercast Corporation. All other trademarks are the property of their respective owners.
Rev A –2010/04
© 2010 Powercast Corporation, All rights reserved. www.powercastco.com
DOUT DSET
+1 800-963-6538 P a g e |1
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Product Datasheet
P1110 – 915 MHz RF Powerharvester™ Receiver
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted. Parameter RF Input Power RFIN to GND DSET to GND VOUT to GND VOUT Current Operating Temperature Range Storage Temperature Range Rating 23 0 6 4.3 100 -40 to 85 -40 to 85 Unit dBm V V V mA °C °C
Exceeding the absolute maximum ratings may cause permanent damage to the device.
ESD CAUTION
This is an ESD (electrostatic discharge) sensitive device. Proper ESD precautions should be taken to avoid degradation or damage to the component.
PIN FUNCTIONAL DESCRIPTION
Pin 1 2 3 4 5 6 7 8 9 10 Label LI GND RFIN GND DSET VSET GND VOUT DOUT ALK Function Li-ion/LiPo recharging pin. Connect directly to the analog ground plane for 4.2V maximum recharging. NC when using ALK or VSET pin. RF Ground. Connect to analog ground plane. RF Input. Connect to 50Ω antenna through a 50Ω transmission line. Add a DC block if antenna is a DC short. RF Ground. Connect to analog ground plane. Digital Input. Set to enable measurement of harvested power. If this function is not desired leave NC. Maximum Output Voltage Adjustment. Sets the maximum output voltage on the VOUT pin. Connect to an external resistor. NC when using LI or ALK pin. DC Ground. Connect to analog ground plane. DC Output. Connect to external storage device. Maximum output voltage set by VSET, LI, or ALK pin. Analog Output. Provides an analog voltage level corresponding to the harvested power. Alkaline recharging pin. Connect directly to the analog ground plane for 3.3V maximum recharging. NC when using LI or VSET pin.
Rev A –2010/04
© 2010 Powercast Corporation, All rights reserved. www.powercastco.com
+1 800-963-6538 P a g e |2
www.DataSheet.in
Product Datasheet
P1110 – 915 MHz RF Powerharvester™ Receiver
SPECIFICATIONS
TA = 25°C, VOUT = 3.0V, unless otherwise noted. Parameter RF Characteristics Input Power Frequency DC Characteristics Output Voltage Output Current Output Current VSET Range Signal Strength Digital Characteristics DSET Input High Timing Characteristics DSET Delay Symbol RFIN Condition Min 0 902 0 No RFIN 1.8 RFIN = 0dBm 61 1 20 -1.5 4.2 Typ Max 20 928 4.2 50 Unit dBm MHz V mA µA V mV V µs
VOUT IOUT IOUT VSET DOUT
Rev A –2010/04
© 2010 Powercast Corporation, All rights reserved. www.powercastco.com
+1 800-963-6538 P a g e |3
www.DataSheet.in
Product Datasheet
P1110 – 915 MHz RF Powerharvester™ Receiver
FUNCTIONAL DESCRIPTION
RF INPUT (RFIN) The RF input is an unbalanced input from the antenna. Any standard or custom 50Ω antenna may be used with the receiver. The P1110 has been optimized for operation in the 902-928MHz band but will operate outside this band with reduced efficiency. Contact Powercast for custom frequency requirements. The RF input must be isolated from ground. For antennas that are a DC short, a high-Q DC blocking capacitor should be added in series with the antenna. STORAGE SELECTION (VOUT) The P1110 is designed to charge an external storage element including batteries and capacitors. The output voltage from the P1110 will be set by the voltage of the storage element with a maximum set by the VSET, LI, or ALK pin. The P1110 will produce a charging current that will be dependent on the RF input power. The voltage on this pin can vary from 0V to 4.2V. The charging current for a fixed input RF power wi.