Board 1 SKYPER
®
32PRO R - Technical Explanations
Over Temperature Protection Circuit (OTP)
The external error input SEC_TOP_ERR_IN on the secondary side (high potential) of the driver core is used for an over
temperature protection circuit to place the gate driver into halt mode.
Dimensioning OTP
If no temperature sensor is connected:
-
-
-
R172: 0
R175: not equip
R177: not equip
(factory setting: not equipped)
(factory setting: equipped)
(factory setting: not equipped)
If a NTC temperature sensor is connected:
1. Define an over temperature trip level according to the application.
2. Calculate the nominal ohmic resistance value of the temperature sensor at the defined trip level according to the IGBT Module
explanation.
3. The trip level on the adapter board is set with
R172 (factory setting: not equipped)
by using the calculated resistance value.
4. R177 = 450kΩ
2
/ R
NTC(@ -40°C)
[kΩ] (factory setting: not equipped)
5. R175: equip (factory setting: equipped)
If a PTC temperature sensor is connected:
1. Define an over temperature trip level according to the application.
2. Calculate the nominal ohmic resistance value of the temperature sensor at the defined trip level according to the IGBT Module
explanation.
3. The trip level on the adapter board is set with
R177 = 450kΩ
2
/ R
calculated_resistance
[kΩ] (factory setting: not equipped)
4. R172 = 0
(factory setting: not equipped)
5. R175: equip (factory setting: equipped)
Mounting Notes
Driver Core Mounting
1. Soldering of components (e.g. R
Gon
, R
Goff
, etc.) on adaptor board.
2. Insert driver core into the box connector on adaptor board.
3. The connecting leads between board and power module should be as short as possible (max. 20cm), the leads should be twisted.
The connection between driver core and adaptor board should be
mechanical reinforced by using support posts. The posts have to be
spaced between driver core and adaptor board.
Product information of suitable support posts and distributor contact
information is available at e.g. http://www.richco-inc.com (e.g. part
number DLMSPM-8-01, LCBST-8-01).
9
Rev. 02 – 21.04.2010
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SEMIKRON [ SEMIKRON INTERNATIONAL ]
