October 8, 2018, Infineon Technologies AG launched the new generation of multichannel SPI High-Speed controllers SPOC, which is leading the market for multichannel SPI high-side smart switches in automotive exterior lighting applications. This new SPOC series is designed to address interior and exterior lighting applications, and power distribution applications such as door lock and seat heating, as well as lighting and power distribution loads for e-bikes.
The drive behind the development of this new product is to provide the customers flexibility, configurability and highly integrated system to reduce the complexity of current products. The new product offers multichannel controls to reduce hardware variants and module size, thus lowering costs and allowing for smaller vehicle packaging locations. Andreas Doll, Vice President and General Manager of Infineon’s Body Power Business Unit, says, “In 2019, we plan to ship roughly 100 million SPOC products. Statistically, every new car in the world will be equipped with our solution.”
A number of new features make the SPOC+2 family more flexible for implementation within the application. For example, previous generations were equipped with two pre-defined modes for either bulb or LED loads. Now, important device parameters including slew rate, load current sense ratio (K ILIS) and overload detection current can be configured individually for each of the up to six channels. Moreover, this comes without negative effects on the on-state resistance R DS(ON). Furthermore, the new concept allows two channels to drive one load in parallel. Consequently, the range of supported currents is now twice as wide: 1.5A to 14A (previously 1.5A to 7A).
All SPOC+2 products have a size of 51.9 mm^2 and a pin pitch of only 0.65mm. SPOC+2 products come with an integrated ground diode, which allows an easier and cheaper solution on system level. No additional external ground diode is required; thus, the ground circuit only requires a small low power resistor (47Ω instead of 100Ω).
All the channels can be configured individually with protection features, such as short circuit and overload with either limited restart restriction or immediate latch off.
All SPOC+2 products offer a common diagnosis via the SPI for faults such as proportional load current sense, open load in on/off-state and short circuit to battery/ground. SPOC+2 products are compliant with ISO 26262 Functional Safety requirements. They offer Limp Home Mode, Monitoring of input pin status (IN and LHI), checksum verification of control registers, current sense verification mode.
SPOC+2 products are suitable for lighting, capacitive loads, heating, power distribution and motor applications
Infineon has provided the SPOC+2 development kits including SPOC+2 Daughterboard and SPOC+2 motherboard to enable the device evaluation and accelerate the design-in phase.