CBC-EVAL-10B EnerChip CC EH Evaluation Kit

©2014 Cymbet Corporation • Tel: +1-763-633-1780 • www.cymbet.com

DS-72-40 Rev C

Page 10 of 17

Specifications subject to change without notice.

(1) See DS-72-03 EnerChip CC CBC3150 Data Sheet and DS-72-01 EnerChip CBC050 Data Sheet for complete specifica-

tions of the Cymbet components on the CBC51100 module included with CBC-EVAL-10B.

(2) Fluorescent (FL) light conditions. EnerChip state-of-charge >90%.

(3) Dependent on battery state-of-charge and load conditions. State-of-charge will affect average VIN. At 0% battery state-

of-charge, 2.6V < VIN < 3.1V, depending on load. At 100% battery state-of-charge, VIN will approach 5.2V at 700Lux.

(4) Continuous current for up to 1 minute with CBC51100 EnerChip module.

(5) For guidelines on adjusting the pulse current capability, see AN-1025: Using the EnerChip in Pulse Current Applications.

CBC-EVAL-10B Circuit Schematics

As a result of designing the CBC-EVAL-10B to be versatile and useful for designing to any number of operating

environments and system requirements, there are many circuit elements that will not be necessary for any

given CCEH implementation. The full schematic of Figure 6 depicts the CBC-EVAL-10B in its entirety. A simpler

and more often used embodiment is shown in Figure 7. In Figure 7, the provision for external batteries has

been removed, as has the circuitry required for external system control of the CBC3150 charge pump. The

schematic of Figure 7 is reduced to the essential elements necessary for implementing an energy harvesting-

based design using the CBC3150 circuitry and EnerChip batteries.

Parameter

Condition

Min

Typical

Max

Units

Input Luminous Intensity (using PV cell

provided with kit)

Minimum operating Lux

-

-

Lux

Full charge rate

-

-

Lux

Photovoltaic Input Voltage (VIN)

25°C

3.1

5.5

Volts DC

Maximum Input Transducer Resistance

Rated input voltage (VIN)

-

-

250

kohms

External Battery Voltage

Non-rechargeable

2.7

3.0

3.6

Volts DC

Rechargeable

4.0

4.1

4.2

Volts DC

Continuous Output Power

(measured at

1000 Lux (FL); battery

not charging; continuous

output

-

300

-

µA

200 Lux (FL), battery not

charging

-

10

-

µA

No ambient light, Ener-

Chips charged

-

-

µA

VOUT

Battery charged; 2µA

load

3.0

3.2

3.5

V

EnerChip and External Rechargeable Bat-

tery Discharge Cutoff Voltage

4.7kΩ load

3.0

3.3

3.6

V

Pulse Discharge Current

25°C ; 20 msec pulse

-

-

mA

EnerChip Self-Discharge (non-recover-

able)

5-year average

25°C

-

2.5

-

% per year

Operating Temperature

-

0

25

70

°C

EnerChip Recharge

Cycles

(to 80% of rated

capacity; 4.1 V charge

voltage)

25°C

10% depth-of-discharge

5000

-

-

-

50% depth-of discharge

1000

-

-

-

40°C

10% depth-of-discharge

2500

-

-

-

50% depth-of-discharge

500

-

-

-

EnerChip Recharge Time (to 80% of rated

capacity)

From 50% state-of-charge

-

10

-

minutes

From deep discharge

-

50

-

minutes

Charging Efficiency

Vin=3.0V

65

%

EnerChip Storage Capacity

200 µA discharge; 25°C

100

-

-

µAh