MAX20049 provides the industry's most efficient power supply along with the flexibility and fault mitigation needed for automotive camera modules

SAN JOSE, Calif., March 25, 2019 — (PRNewswire) —  With automotive camera modules becoming increasingly smaller, designers can now utilize the ultra-compact MAX20049 power management IC from Maxim Integrated Products, Inc. (NASDAQ: MXIM), which integrates four power supplies into a tiny footprint. In addition to being the most compact power management IC for vehicle camera modules, it delivers the highest efficiency on the market today. The MAX20049 offers many options to support various output voltages, while also providing fault mitigation by flagging faults and shifts in output voltages.

• For more information on automotive ADAS power solutions, visit: http://bit.ly/PowerforADAS
• Details about the MAX20049: www.maximintegrated.com/products/MAX20049    
• Hi-res image: http://bit.ly/MAX20049_Image

Automotive camera modules tend to be size-constrained, so designers are constantly in search of a power management solution that can pack the necessary power and functionality into a small form factor. The 4-channel MAX20049 power management IC is almost 30 percent more compact than competitive solutions and offers the highest efficiency among other quad-power power management ICs in its class. It offers many options to support modules that need various output voltages for different mixes of sensors and serializers, enabling designers to make changes in layout as needed or to fine-tune the IC to meet specific application requirements. The MAX20049 provides fault mitigation, a feature required by designers to help flag faults and shifts in output voltages to ensure that the cameras are working as needed.

Key Advantages

• Smallest Solution Size: has a PCB footprint that is almost 30 percent smaller than that of the closest competitor (38mm² compared to 53.3mm²)
• 4 outputs (dual bucks and dual LDOs) in a 3mm x 3mm QFN package
• Protection unavailable in competitive products include over-voltage protection, under-voltage lockout, external power good (PGOOD) signal and cycle-by-cycle current limit
• Highest Efficiency: system efficiency at full load is 74 percent (versus 69 percent for discrete automotive solutions)
• Thermal performance plus high efficiency contributes to overall optimized performance
• Flexibility: the dual buck converters and low-noise LDO support a wide voltage input range from 4V to 17V, enabling power-over-coax (POC), typically from 8V to 10V. There is also an option of using one of the buck converters as an intermediate supply for generating typical sensor + serializer rails
• Optimizes thermal performance and minimizes coax inrush current at startup
• Flexible sequencing and fixed output voltages supporting various image sensors
•  Fault Mitigation: flags faults and shifts in output voltages to ensure cameras are working as intended
• Once an over- or under-voltage signal is detected, the PGOOD pin will assert low
• Cycle-by-cycle current limit implemented by the respective converter if either output is shorted
• Low Noise: spread spectrum and 2.2MHz switching frequency mitigates electromagnetic interference (EMI) to meet CISPR low-noise specifications

Commentary

• "We continuously look for integrated power devices that provide the required power source for image sensors while minimizing size in vehicle-based imaging designs," said Tsutomu Haruta, deputy senior general manager, Sony Semiconductor Solutions Corporation.  "Maxim's power solutions would help enable multi-camera functionality and advanced driver safety systems in a small footprint." 
• "We selected the MAX20049 due to its high integration, which aids in designing smaller boards – traditionally a challenge in designing cameras," said Chris Day, vice president of Marketing, Ambarella. "Maxim has a stellar reputation within our Tier 1 customers for providing a complete automotive-grade solution for power and SerDes that include AECQ100 and ASIL-level certifications. Using reputable automotive-grade parts in our reference design ensures that customers can simply replicate the design, thereby reducing the overall risk in production."
• "Designers have increasingly demanding constraints to adhere to when designing for the tiny components that go into cars, such as cameras modules, which is why there is a growing demand for more advanced power management ICs," said Chintan Parikh, executive business manager for the Automotive Business Unit at Maxim Integrated. "The MAX20049 meets ADAS design needs in terms of form factor, fault mitigation and power requirements, which translates to faster design cycles and quicker time to market."

Availability and Pricing:

• The MAX20049 is available at Maxim's website; Pricing available upon request
• The MAX20049EVKIT# evaluation kit is available; Pricing available upon request
• EE-Sim^® models are available; For details, visit http://bit.ly/EE_Sim_Maxim

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About Maxim Integrated

Maxim Integrated develops innovative analog and mixed-signal products and technologies to make systems smaller and smarter, with enhanced security and increased energy efficiency. We are empowering design innovation for our automotive, industrial, healthcare, mobile consumer, and cloud data center customers to deliver industry-leading solutions that help change the world. Learn more at https://www.maximintegrated.com.

 

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