TGP-751 datasheet(6/35 Pages) ETC2

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Micropelt - preliminary - Datasheet TE-CORE /RF v1.4 | Page 6

Thermoharvesting Wireless Sensor System

Micropelt TE-CORE /RF

1.5 Absolute Maximum Ratings

Please ensure that during operation of the TE-CORE /RF

system the below maximum ratings, see below, are not

exceeded:

1.6 Mechanical and Thermal Interfaces

The PCB and the heat sink are connected by two fas-

tening screws, which fixes the TPG at the same time.

Clamping force is max. 25 cNm, because of PCB.

(see picture “TE-CORE /RF main components”)

Between TGP and the heat sink a Graphite foil ensures

a good thermal path. eGraph type Hitherm 2505 with

127µm is used as thermal interface material.

1.7 Available Versions

The TE-CORE/RF ThermoHarvesting Wireless Sensor

System is available in two variations, differentiated by

two thermal generator types:



TE-CORE7 /RF: TGP-751 (thin-film TEG MPG-D751 )



TE-CORE6 /RF: TGP-651 (thin-film TEG MPG-D651)

Select TE-CORE7 over TE-CORE6 for:



operation at lowest temperature gradients



higher output power with better heat sink;

—> 2x power over the TE-CORE6 is possible.

TE-CORE /RF main components

1.4 Modular Thermo-Mechanical Design

The Energy Harvesting module of the TE-CORE /RF

operates from a heat (or cold) thermal energy source.

The TGP’s aluminum top side, its thermal input, is sup-

posed to be attached to the heat source. The thickness

of the thermal input acts as a spacer to protect the PCB

and to ensure a thermal separation between the hot

and cold sides; i.e. optimizing energy harvesting perfor-

mance through suppression of thermal ‘cross talk’.

The thickness of the TGP’s thermal output was chosen

to provide an initial heat spreading effect towards a

heat sink and at the same time allowing for population

of electronic components next to the TGP, even below

the heat sink which usually extends well over the foot-

print of the TGP.

min

TYP

max

Hot side

temperature

+10 °C

+ 100 ºC

Operating temp

0 ºC

+ 70 ºC

Storage temp

+5 ºC

+ 35 ºC

ESD sensitivity

9000 V

TE-CORE7 /RF TE-CORE6 /RF

33.5 ºC

92.3 °F

35.0 ºC

95.0 °F

DC-DC startup at

25 °C ambient

Exchangeable

heat sink

Heat sink interface/

thermal output

Heat source interface/

thermal input

Energy Harvesting module

Fastening bolts

for heat sink

Wireless Sensor module

iM222a radio module

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