BTS 6480SF Infineon Technologies, BTS 6480SF Datasheet - Page 51

• Manufacturer Part Number: BTS 6480SF
• Manufacturer: Infineon Technologies

Specifications of BTS 6480SF

• Packages: PG-DSO-36
• Channels: 4.0
• Channel Mix: 2*4,5mohm+2*11mohm
• Led Mode: Yes
• Cranking Mode: No
• Pwm Engine Integrated: Yes

Figure 24
9.6
To detect short circuit to
short circuit between the output pin OUT and
well as through the short 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
means a small
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
DS
.
DCR.AMUX
PCR.PST
V
V
V
V
V
* t
* t
* t
V
PCLK
OUT0
OUT1
OUT2
OUT5
ISSY
Synch. high A
Synch. high B
ISSY delay ON/OFF
V
...
V
IS
BB
t
Synch. delay0
, there is a switch bypass monitor implemented for all internal channels. In case of
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
t
Ch. phase shift2
PCLK
INT
INT
t
Ch. phase shift1
)
)
V
or f
t
*
Synch. delay2
BB
t
Synch. high A
INT
Ch1
t
V
Ch. phase shift5
)
in ON-state, the current will flow through the power transistor as
DS
across the power transistor of that channel, which is selected
*
51
t
Ch2
ISSY delay ON/OFF
V
DS(SB)
t
Synch. high B
...
. The result of comparison can be read in SPI
*
Ch5
Set to 0 automatically
AutoMUX_EXT .emf
t
t
t
t
t
t
t
t
t
SPOC - BTS6480SF
Rev. 1.0, 2010-04-12
V
BB
potential which
Diagnosis