SKYPER32PROR_0701 Datasheet, PDF (13/18 Pages) Semikron International – IGBT Driver Core

SKYPER™ 32PRO R
Short circuit during operation
Turn on of IGBT too slow *
Short circuit during turn on
* or adjusted blanking time too short
Adjustment of DSCP
The external components RCE and CCE are applied for adjusting the steady-state threshold the blanking time.
Connection RCE and CCE
Dimensioning of RCE and CCE
[ ] R_CE
kΩ
⎜⎛
V_CEstat
= −15,5kΩ ⋅ ln^⎜1−
⎜
⎜⎝
+
R
VCE
⋅
V
kΩ
⎟⎞
⎟
8V
⎟
⎟⎠
C_CE [pF] =
t
bl
[µs]
−
2,1µs
−
0,11
µs
Ω
0,00323 ^µs
⋅ R _CE
pF
VCEstat:
tblx:
Collector-emitter threshold static monitoring voltage
Blanking time
VCEstat_max = 8V (RVCE = 0Ω)
VCEstat_max = 7V (RVCE = 1kΩ)
Please Note:
The equations are calculated considering the use of high voltage diode
BY203/20S. The calculated values VCEstat and tbl are typical values at room
temperature can and do vary in the application (e.g. tolerances of used high
voltage diode, resistor RCE, capacitor CCE).
The DSCP function is not recommended for over current protection.
Application hints
If the DSCP function is not used, for example during the experimental phase, SEC_TOP_VCE_IN must be connected with
SEC_TOP_GND for disabling SCP @ TOP side and SEC_BOT_VCE_IN must be connected with SEC_BOT_GND for disabling SCP @
BOT side.
13
2007-01-19 – Rev03
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