Recently, Texas Instruments have released the first high-side intelligent power switch with programmable current limits. As the automotive system is more complicated, multiple loads in the system require different system configurations in operation. By using Ti latest TPS1H100-Q1, designers can satisfy high-flexible drives that require extremely high reliability requirements, such as automotive power assembly, vehicle body electronic system security and driver information systems. load. The TPS1H100-Q1 can increase the accuracy of current sensing by 20% compared to other similar competitive products, so that the needs of intelligence and real-time diagnosis needed under its own load conditions can be realized. System designers can make full use of the simplicity and flexibility of devices, and reduce the complexity of the circuit while improving the system.
Car Body Control Module (BCM) Drive
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Schematic / block diagram
Key features and advantages of TPS1H100-Q1:
High current sensing accuracy: 5mA current sensing accuracy allows designers to make full use of precision load inspection functions to adjust drive system configuration, diagnostic system failure, lock problem area, or judgment circuit conditions.
Programmable current limits: TPS1H100-Q1 is the industry's first device to achieve flexible controlled devices.
High-infaral energy dispersion function: High-pressure avalanche Structures do not require suppressors and continuation of the diode to solve the voltage surge problem caused by the inductive load allergic voltage recirculation.
Test Data
Compliance with the Automotive Electronic Committee (AEC) Q100-012 A standard: zero failure in the use environment of automobiles and industries, ensuring the reliability of products in service life. TI's load switch product library can be used in a variety of applications such as power saving, distribution and power supply. These high integration devices streamline the number of peripherals (BOM), which reduces solution size, and also adds other protection functions.
Automotive BCM reference design solves common design puzzles such as load drive, condition diagnosis and fault detection. This reference design in Ti Designs can help designers quickly complete the door lock, window lifter, seat heater, heating, ventilation, and air conditioning (HVAC), headlights, and light-emitting diodes (LEDs). TIDA-00296 is a focus on the reference design of TI high side and low-side relays, motors, and load drivers. We have chosen the load (door lock, window lift motor, seat heater, HVAC, headlights, and LED) to show how BCM driverned load range and how TI solution meets these areas.
Design PCB board
The flexible driver product for driving multiple loads, the smart driver provides diagnostic and protection functions via I2C and SPI; the power level for the design provides reverse polarity protection; the front FET driver is used to drive discrete FETs, thus The design can be flexibly handled load drive demand; highlighting BCM can directly drive load capability with higher current demand (~ 4500mA). , Reading the full text, the technology area
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