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TECHNICAL DATA
DATA SHEET 5054, REV-
221 West Industry Court, Deer Park, NY 11729-4681 Phone (631) 586 7600 Fax (631) 2429798
World Wide Web- http:// www.sensitron.com Email Address- sales@sensitron.com
Page 4
SPOR30D28
PIN DEFINITIONS
Pin Symbol
Pin Description
LINE1, LINE2
28V line input pins
FUSE1, FUSE2
If fuses are required in the power distribution path, they can be
located between LINE1, 2 and FUSE1, 2. Otherwise short LINE1,
2 and FUSE1, 2.
Load
Output pin of the module. This pin is used to connect to the load.
FETCHK1, FETCHK2
FET check input pins. Together with PWFLT1, 2 output pins, the
FETCHK1, 2 pins can be used to determine the short-circuit fault
of oring MOSFETs.
LINE1HI, LINE2HI
These two pins indicate which channel has higher line voltage.
The pin of higher line voltage gives open drain output, otherwise
it is shorted to GND.
GND
Ground of the module. This pin should be connected to 28V
return.
1
PWRFLT
,
2
PWRFLT
Output pin of fault detection. (see Fault Table for details)
1
FUSEFLE
,
2
FUSEFLT
Output pin of blown fuse detection.
FAULT TABLE
1
FETCHK
VDS (V)
<250mV
VFUSE (V)
>3.5V
VLINE (V)
>26V
FUSEFLT
PWRFLT
COMMMENTS
Low
True
True
True
Hi-Z
Hi-Z
Normal operation
Low
True
True
False
Hi-Z
Pull-Down
VLINE1 <26V
Low
True
False
True
Pull-Down
Hi-Z
Blown fuse
Low
True
False
False
Pull-Down
Pull-Down
VLINE1 <3.5V or
Combination of
proceeding two faults
Low
False
True
True
Hi-Z
Pull-Down
Open-circuit fault in
MOSFETs or Iload
>180A
High
2
True
True
True
Hi-Z
Hi-Z
Short-circuit fault in
MOSFETs
High
2
False
True
True
Hi-Z
Pull-Down
Good MOSFETs
Note1: Fault table is valid for both line1 and line2.
Note2: FETCHK can only be applied on the line with pin LINE1(2)HI high.
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