CBC-EVAL-10 Cymbet Corporation, CBC-EVAL-10 Datasheet - Page 15

• Manufacturer Part Number: CBC-EVAL-10
• Description: ENERCHIP CC SEH EVAL KIT
• Manufacturer: Cymbet Corporation
• Series: EnerChip™ CCr
• Type: Energy Harvestingr

Specifications of CBC-EVAL-10

• Main Purpose: Power Management, Renewable Energy
• Embedded: No
• Utilized Ic / Part: CBC3150, CBC51100
• Primary Attributes: Thin Film Rechargeable Solid State Battery
• Secondary Attributes: Solar Energy Harvester
• Maximum Operating Temperature: + 70 C
• Product: Power Management Development Tools
• For Use With/related Products: EnerChip CBC51100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 859-1012

Power Conversion Efficiency Considerations
System factors such as PV cell properties; ambient light; input and output capacitor sizes; battery state-of-
charge; and CBC3150 VMODE peak power setting will all affect the duty cycle of the CBC3150 charge pump
and system power conversion efficiency.
The CBC3150 has a built-in latency of about 200ms with respect to the timing of RESET/ being asserted low af-
ter the charge pump is disabled. For optimum power conversion efficiency, size the input capacitor so that it will
only charge one or two tenths of a volt during that 200ms period under the lowest anticipated lighting condition
- that is, where the PV cell gives its lowest power output.
For example, suppose the PV cell at 200Lux can deliver 50µA at a maximum power point of 3.0V. Transposing
the standard equation I = C x dv/dt, the input capacitor can be sized as C = 50µA x 200ms/100mV = 100µF of
capacitance. When the charge pump runs, it will quickly pump the capacitor to the switching point. When the
charge pump stops during the 200ms latency time, the capacitor will not charge above the maximum power
point. At higher light intensity, the efficiency is less important and thus the capacitor does not need to be over-
sized to maintain operation at the peak power point of the PV cell.
Ordering Information
Disclaimer of Warranties; As Is
The information provided in this data sheet is provided “As Is” and Cymbet Corporation disclaims all representations or warranties of any
kind, express or implied, relating to this data sheet and the Cymbet battery product described herein, including without limitation, the
implied warranties of merchantability, fitness for a particular purpose, non-infringement, title, or any warranties arising out of course of
dealing, course of performance, or usage of trade. Cymbet battery products are not approved for use in life critical applications. Users shall
confirm suitability of the Cymbet battery product in any products or applications in which the Cymbet battery product is adopted for use and
are solely responsible for all legal, regulatory, and safety-related requirements concerning their products and applications and any use of
the Cymbet battery product described herein in any such product or applications.
DS-72-20 Rev A
EnerChip Part Number
CBC3150-D9C
CBC050-M8C
CBC-EVAL-10
Cymbet, the Cymbet Logo and EnerChip are trademarks of Cymbet Corporation. All Rights Reserved.
EnerChip products and technology are covered by one or more patents or patents pending.
©2011 Cymbet Corporation • Tel: [phone] • www.cymbet.com
CBC-EVAL-10 EnerChip CC EH Evaluation Kit
EnerChip CC with Integrated Power
EnerChip CC Energy Harvester
EnerChip 50µAh Solid State
Evaluation Kit
Management
Description
Battery
Packaged in Tape and Reel or
Packaged in Tape and Reel or
Contains Solar Cell Panel and
CBC51100 Module
Notes
Tubes
Tubes
Page 15 of 15