BTS5461SF Infineon Technologies, BTS5461SF Datasheet - Page 4

• Manufacturer Part Number: BTS5461SF
• Manufacturer: Infineon Technologies

Specifications of BTS5461SF

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

Configuration and status diagnosis are done via SPI. The SPI is daisy chain capable. The device provides a
current sense signal per channel that is multiplexed to the diagnosis pin IS. It can be enabled and disabled via SPI
commands. An over load and over temperature flag is provided in the SPI diagnosis word. A multiplexed switch
bypass monitor provides short-circuit to V
of one selected channel in order to detect an open load.
The SPOC - BTS5461SF provides a fail-safe feature via limp home input pin.
The power transistors are built by N-channel vertical power MOSFETs with charge pumps.
Protective Functions
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Diagnostic Functions
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Application Specific Functions
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Applications
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Data Sheet
Reverse battery protection with external components
Reversave
Short circuit protection
Over load protection
Thermal shutdown with latch and dynamic temperature sensor
Over current tripping
Over voltage protection
Loss of ground protection
Electrostatic discharge protection (ESD)
Multiplexed proportional load current sense signal (IS)
Enable function for current sense signal configurable via SPI
High accuracy of current sense signal at wide load current range
Current sense ratio ( k
Very fast diagnosis in LED mode
Feedback on over temperature and over load via SPI
Multiplexed switch bypass monitor provides short circuit to V
Integrated, in two steps programmable current source for open load in OFF-state detection
Fail-safe activation via LHI pin
High-side power switch for 12 V grounded loads in automotive applications
Especially designed for standard exterior lighting like high beam, low beam, indicator, parking light and
equivalent LEDs
Load type configuration via SPI (bulbs or LEDs) for optimized load control
Replaces electromechanical relays, fuses and discrete circuits
TM
- Reverse battery protection by self turn on of all channels
ILIS
) configurable for LEDs or bulbs for channel 2 and 3
S
diagnosis. In OFF state a current source can be switched to the output
4
S
detection
SPOC - BTS5461SF
Rev. 1.0, 2011-11-17
Overview