Rohm introduces small ICs for camera modules
Rohm has launched its BD868xxMUF-C (BD868C0MUF-C, BD868D0MUF-C) PMICs for automotive camera modules. The models are ISO 26262 and ASIL-B compliant.
In 2018, Rohm achieved ISO 26262 Development Process certification from German certification body TÜV Rheinland, and in 2021 launched the brand ComfySIL. As part of the ComfySIL series, these ICs are ‘FS (functional safety) process compliant’ products (the highest grade), indicating compliance with the ISO 26262 standard.
Meeting the strict requirements for functional safety allows these products to facilitate safety design in next-generation vehicles equipped with advanced driver assistance systems (ADAS). Moreover, the four power supply systems (three DC/DC + 1 LDO) necessary for automotive cameras are integrated into a 3.5 x 3.5mm package, and achieve what Rohm claimed is the industry’s smallest size in comparable camera power management ICs.
They are equipped with an anomaly status notification mechanism such as abnormal voltage detection and feedback via I2C. This reduces the number of components by three compared to former devices, which results in a 25 per cent smaller mounting area compared to conventional designs and contributes to smaller vehicle cameras, claimed the company. It said that further miniaturisation is possible.
A wide range of output voltage and sequence control settings can be configured to meet the varying requirements of CMOS image sensors from different manufacturers, which simplifies development.
In addition to the four models (BD868A0MUF-C, BD868B0MUF-C, BD868C0MUF-C and BD868D0MUF-C) that comply with both ISO 26262 and ASIL-B, the lineup will also include the non-ISO 26262-compliant BD868C1MUF-C for users that do not require ASIL compliance. Rohm can also offer products based on customer setup requirements such as output voltages, voltage tolerances, sequencing and functional safety requirements.
Derivative models (BD868A0MUF-C, BD868B0MUF-C and BD868C1MUF-C) are scheduled to be released in succession.
Applications for the models include rear view / perimeter cameras, drive recorders and driver monitoring systems.
Rohm launched the ComfySIL brand for customers involved in the design of functional safety to use products that support SIL (Safety Integrity Level) in a ‘Comfy’ (comfortable) manner, and for social systems’ greater safety, security, and convenience. ComfySIL is awarded to products that conform to the ComfySIL concept for functional safety in the industrial equipment and automotive markets.
Rohm Semiconductor develops and manufactures a product range from SiC diodes and MOSFETs, analogue ICs such as gate drivers and power management ICs to power transistors and diodes to passive components.