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High side switches carry twice the current

High side switches carry twice the current

New Products |
By Nick Flaherty



As was the case with BCMs (Body Control Modules) about 15 years ago, the functional range and complexity of other automotive control devices, such as distribution boxes, fuse boxes and relay boxes, are now also increasing significantly. The flexibly configurable, highly integrated SPOC products are intended to help developers of automotive electronics to significantly reduce the number of hardware variants and their installation space and thus costs.

The members of the SPOC+2 family feature a number of new features. Previous generations were equipped with two predefined operating modes for incandescent lamps and LED loads. Important parameters such as slew rate or sense current accuracy (K ILIS) can now be individually configured for each of the six channels. This is done without negative effects on the forward resistance R DS(ON). In addition, with the new concept, two channels combined can drive a load. This doubles the range of supported currents to 1.5A to 14A (previously 1.5A to 7A).


All products have the same connection logic, a common software concept and now also uniform housings. This means that customers within the SPOC+2 family can quickly and easily switch from one device to another if the OEM requests changes at short notice.

Compared to the previous generation, Infineon has reduced the package dimensions for the high-end product BTS72220-4ESA/E by more than 50 percent to just 52 square millimeters – about half the size of comparable competitor products, as Infineon notes. Nevertheless, they can switch powers up to 241 W.

The new product family also offers additional configurable protection functions that can be implemented individually for each channel. In addition to common short-circuit or overload protection, the SPOC+2 switches also allow configurable detection of overload currents. This protection can be configured with either limited restart or direct latch function.

The devices are equipped with an SPI interface for fault diagnosis. The extended diagnostic functions include the detection of an open load at switch-off or a short circuit to the battery.

Further information: www.infineon.com/spoc 

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