The BTS54220-LBE is a four channel high-side smart power switch in TSON-24-1 package providing embedded protective functions. It is specially designed to control standard exterior lighting in automotive applications. In order to use the same hardware, the device can be configured to bulb or LED mode. As a result, both load types are optimized in terms of switching and diagnosis behavior. It is designed to drive exterior lamps up to 65 W and 27 W, HIDL or the equivalent LED light.
Summary of Features:
8-bit serial peripheral interface (daisy chain capable SPI) for control and diagnosis.
PWM driving possible through direct inputs or via SPI
Integrated control for one external smart power switch Selectable AND-/ OR- combination for the parallel inputs (PWM control)
Load type configuration via SPI (bulb or LEDs)
Very low Stand By current
Fail Safe activation via Limp Home pin and configuration via input pins only
Green Product (RoHS-Compliant)
AEC Qualified.
Benefits:
Full modularity of the SPOC+ Family enables development re-use and quick adaptation to loadlist changes
Extra small leadless package (TSON24) helps reduce the PCB area
Simplified overal PCB layout, small PCB area, reduced bill of material on system level
Control of one external PROFETs through SPI gives the flexibility to use scalable, pin compatible devices to drive optional loads
Smaller MCU package required as control is done via SPI daisy chains
Added diagnostics via SPI in addition to multiplexed current sense
Module quality improvement using a pre-tested "system on chip" device and simplified design
