EH301KIT - Advanced Linear Devices

FUNCTIONAL DESCRIPTION

EH300/EH301 Series Modules' voltage on the

onboard storage capacitor bank is +V, which is also the

positive supply voltage switched to power the output

power load. Initially, +V voltage on an EH300/EH301

Series Module starts at 0.0V. During the initial charge

period, +V starts charging from 0.0V. The internal circuit

of the Module monitors and detects this +V voltage. When

+V reaches VH, the Module output (VP) is enabled and

turned to the ON state and is then able to supply power

EH300/EH300A/EH301/EH301A

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GENERAL DESCRIPTION

EH300/EH301 Series EPAD® ENERGY HARVESTINGTM

Modules can accept energy from many types of electrical

energy sources and store this energy to power conventional

3.3V and 5.0V electrical circuits and systems. EH300/EH301

Series Modules are completely self-powered and always in

the active mode. They are intended for low power intermit-

tent duty cycle sampled data or condition-based monitoring/

extreme lifespan applications. These Modules can accept

instantaneous input voltages ranging from 0.0V to +/-500V

AC or DC, and input currents from 200nA to 400mA from

energy harvesting sources that produce electrical energy in

either a steady or an intermittent and irregular manner with

varying source impedances. EH300/EH301 Series Modules

condition the stored energy to provide power at output volt-

age and current levels that are within the limits of a particu-

lar electronic system power supply specifications. For ex-

ample, 1.8V and 3.6V is a useful voltage range for many

types of I.C. circuits such as microprocessors.

EH300/EH301 Series Modules are designed to continuously

and actively operate to capture, accumulate and conserve

energy from an external energy source. Each individual

EH300/EH301 Series Module is set to operate between two

supply voltage thresholds, +V_low DC and +V_high DC,

corresponding to the minimum (VL) and maximum (VH) sup-

ply voltage values for the intended application. When an en-

ergy source starts to inject energy into the inputs of an EH300/

EH301 Series Module in the form of electrical charge im-

pulses, these charge packets are collected, accumulated and

stored onto an internal storage capacitor bank. For most com-

mon energy harvesting applications, the electrical energy

charge packets arrives in the form of input voltage spikes

that are uncontrolled and unpredictable. Often these cover

a wide range of voltages, currents and timing waveforms.

EH300/EH301 Series Modules are designed to accommo-

date such conditions with exceptional efficiency and effec-

tiveness. As an example, EH300 Series Module can cycle

within 4 minutes at an average input current of 10 µA and

within 40 minutes at an average input current of just 1.0 µA.

EH300/EH301 EPAD® ENERGY HARVESTINGTM Modules

SPECIFICATIONS

EH300/EH300A/EH301/EH301A

Input/Output Electrical Specifications

@25° C

• Max. Instantaneous Input Voltage: +/- 500V

• Max. Instantaneous Input Current: 400mA

• Max. Input Power: 500mW

• Min. Input: 0.0V@1nA

• Min. Charging Input (Max. Power Dissipation):

- EH300 4.0V@200nA(800nW)

- EH301 6.0V@300nA(1800nW)

- EH300A 4.0V@500nA(2µW)

- EH301A 6.0V@500nA(3µW)

• Internal Voltage Clamp: 7.0V@10mA

• Max. Output Current: 1 amp

• Operating Life Cycles: Virtually unlimited

• Logic Compatibility: CMOS

EH300

•VL=1.8V VH=3.6V

• Useful Energy Output@ 4.6mJ

• Output On-T ime Rating: 68msec@25mA

EH300A

•VL=1.8V VH=3.6V

• Useful Energy Output@ 30mJ

• Output On-T ime Rating: 75msec@150mA

EH301

•VL=3.1V VH=5.2V

• Useful Energy Output@ 8.3mJ

• Output On-T ime Rating: 80msec@25mA

EH301A

•VL=3.1V VH=5.2V

• Useful Energy Output@ 55mJ

• Output On-T ime Rating: 88msec@150mA

ORDERING INFORMATION

Part Number Description

EH300 4.6 mJ Module / 1.8V to 3.6V operation

EH300A 30 mJ Module / 1.8V to 3.6V operation

EH301 8.3 mJ Module / 3.1V to 5.2V operation

EH301A 55 mJ Module / 3.1V to 5.2V operation

EHJ1C 6 inch cable / J1connector (Input)

EHJ2C 6 inch cable / J2 connector (Output)

Note: EH300A and EH301A are high energy output versions

Advanced Linear Devices EH300/EH301

EH300/EH301 Waveforms

OUTPUT

READY

to a power load, such as a microprocessor and/or a sensor

circuit. The amount of useful energy available is a function

of the capacity of the storage capacitor bank. Meanwhile,

an EH300/EH301 Series Module continue to accumulate

any energy generated by external energy sources. If exter-

nal energy input availability is high, output VP remains in an

ON state continuously, until such time that external energy

availability is lower than the power demand required by the

power load. As external energy input exceeds power load-

ing, +V increases until internal voltage clamp circuits limit it

to a maximum clamp voltage.

During normal operation, as power is drawn from an EH300/

EH301 Series Module, +V decreases in voltage. When +V

reaches VL, output VP switches to an OFF state and stops

supplying any further power to the power load. With built-in

hysteresis circuits within the Module, VP now remains in the

OFF state even when the external energy source starts

charging the capacitor bank again by importing fresh new

impulses of electrical energy . Once VH level is reached again,

output VP is then turned to the ON state again. Hence +V

voltage cycles between VH to VL voltage levels and then to

the OFF state. When in the ON state, VP can supply up to

1A of current for a limited time period as determined by the

stored useful energy and the energy demand by the power

load. An optional input/ouput pin VR functions as VP on/off

control (external input through 1KOhm) or as READY logi-

cal control (output) signal preceeding output VP switching.

Input energy charging times t1 and t2 are limited by input

energy available minus energy loss by an EH300/EH301

Series Module. The energy output time period t3 is deter-

mined by the rate of energy used by the power load as a

function of energy stored. Low input energy hold time t4 is

typically many orders of magnitude greater than the sum of

t1, t2 and t3.

Mechanical Specifications

• Outline Dimensions:

W x L x H : 0.55 in. x 2.00 in. x 0.70 in.

• 4 Mounting Holes: 0.085 in. diameter

• Weight: 0.5 ounce (14 grams) nominal

Module Dimensions

Environmental Specifications

• Leadfree (ROHS) compliant

• Operating Temperature Range: 0 to 70° C

• Max. Average Operating Temperature : 50° C

• Storage Temperature: -40 to +85° C

• Humidity: To 90% (no condensation)

• Protection: Conformal and Epoxy coated

Initial Setup & Calibration

EH300/EH301 Series Modules are setup and calibrated at

the factory to standard specifications and settings. No user

setup is required. Optional user control signal and connec-

tion to external capacitor or battery storage banks are avail-

able at the output port. All EH300/EH301 Series Modules

are shipped Ready to Use.

EH300/EH301 Top View

+Input

-Input

Ground

(Output)

Energy

Source GND

Application

Module

EH300/EH301 Typical Application

J1 J2

Socket Adapter Cable:

J1: Hirose Socket, 2 Position P/N : DF13-2S

J2: Hirose Socket, 4 Position P/N : DF13-4S

+Input

-Input

Ground

R (Ready)

P (Output)