BTS6460SF INFINEON [Infineon Technologies AG], BTS6460SF Datasheet - Page 50
BTS6460SF
Manufacturer Part Number
BTS6460SF
Description
SPI Power Controller
Manufacturer
INFINEON [Infineon Technologies AG]
Datasheet
1.BTS6460SF.pdf
(72 pages)
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Figure 24
9.6
To detect short circuit to
output pin OUT and
circuit (bypass) with undefined ratio. As a result, the current sense signal will show lower values than expected by
the load current. In OFF-state, the output voltage will stay close to
The switch bypass monitor compares the voltage
by the current sense multiplexer (DCR.MUX) with threshold
register DCR.SBM or in the standard diagnosis.
Data Sheet
Automatic Current Sense Multiplexer Switching
Switch Bypass Diagnosis
V
DCR.AMUX
PCR.PST
BB
* t
* t
* t
in ON-state, the current will flow through the power transistor as well as through the short
V
V
V
V
V
V
V
Synch. high A
Synch. high B
ISSY delay ON/OFF
PCLK
OUT0
OUT1
OUT2
OUT3
BB
ISSY
V
IS
, there is a switch bypass monitor implemented. In case of short circuit between the
t
Synch. delay0
t
Synch. high A
n * 1024
t
ISSY delay ON/OFF
= 8 / (f
= 9 / (f
= 11 / (f
PCLK
PCLK
*
t
t
Synch. high B
Ch0
sIS(ON)
or f
or f
PCLK
t
Ch. phase shift2
INT
INT
)
)
or f
t
Ch. phase shift1
V
t
t
Ch. phase shift3
*
Synch. delay2
INT
t
Synch. high A
DS
Ch1
)
t
across the power transistor of that channel, which is selected
ISSY delay ON/OFF
50
*
V
Ch2
t
Synch. high B
DS(SB)
. The result of comparison can be read in SPI
V
BB
*
Ch3
potential which means a small
Set to 0 automatically
AutoMUX.emf
SPOC - BTS6460SF
t
t
t
t
t
t
t
t
t
Rev. 1.0, 2010-04-12
Diagnosis
V
DS
.
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