CBC-EVAL-10 Cymbet Corporation, CBC-EVAL-10 Datasheet - Page 7

• 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

Connecting CBC-EVAL-10 to the System
The CBC-EVAL-10 board has two control lines that can be connected to a microcontroller (MCU) for the purpose
of conserving available energy, using incoming power efficiently, and extending EnerChip battery life. The table
below describes the functionality of the J9 and J10 connector pins.
DS-72-20 Rev A
•
will be disabled. This feature allows all available power to be delivered to the load rather than to charging
the EnerChips, a useful mode when limited transducer power is available or when higher operating current
is required from the system. When BATOFF is driven low, the interaction between the charging source
and the CBC-EVAL-10 behaves normally. In other words, when BATOFF is low the EnerChips will always be
charging when sufficient input power is available.
•
RESET/ output signal. Therefore, CHARGE/ will be driven low (RESET/ driven high) whenever VIN is at a
voltage above the VMODE switchover setpoint (nominally 3.0V with VMODE tied to GND). In CCEH mode - as
configured by jumper J11 - RESET/ is tied to EN, meaning the charge pump will be active and the batteries
will be charging only when RESET/ is high. During operating conditions when RESET/ is toggling on and
off at some duty cycle (for example in low light), CHARGE/ will also be toggling. To determine whether the
batteries are charged during such conditions, an MCU could be programmed to integrate the total time
that CHARGE/ is low over some elapsed time or pre-defined use period. From that data, it can be inferred
whether the batteries are charged and available for use in the event input power (VIN) drops below the level
required to operate the charge pump at all.
•
configuration and load current. It provides power to the system according to the Operating Characteristics
table shown below.
•
BATOFF is typically controlled by a microcontroller I/O line. When driven high, the CBC3150 charge pump
CHARGE/ is an output signal from the CBC-EVAL-10. CHARGE/ is a logical inversion of the CBC3150
VOUT is the DC output voltage from the
GND is the ground connection of the CBC-EVAL-10. It is to be connected to the system ground line.
CHARGE/
BATOFF
VOUT
GND
Pin
NC
©2011 Cymbet Corporation • Tel: [phone] • www.cymbet.com
CBC-EVAL-10 EnerChip CC EH Evaluation Kit
have been charged or are being charged (provided CBC3150 EN pin was/
is high). CHARGE/ is an open drain output with an internal 1.0MΩ pull-up
from the CBC-EVAL-10 charging circuit. See the section System Design
Input control line to the CBC-EVAL-10 for disconnecting the EnerChips
Active low output from the CBC-EVAL-10 indicating that the EnerChips
resistor to VOUT. See the section System Design Recommendations to
J9 and J10 Pin Descriptions
Recommendations to Save Power for additional information.
CBC-EVAL-10 and is typically 2.5V, depending on system
(J9 has one NC pin and J10 has two NC pins)
Save Power for additional information.
CBC-EVAL-10 output power
System ground
No connection
Designation
Page 7 of 15