Programmable PMIC Saves Space, Increases ADAS Reliability

(STMicroelectronics)

STMicroelectronics’ L5965 seven-output automotive power-management IC (PMIC) enables more compact and reliable electronic control units for automotive-vision systems and other in-vehicle applications. With seven regulated outputs, a single L5965 can power an entire camera- or radar-based driver-assistance system including the sensors, memory ICs, processor, and CAN interface circuitry. One-time programmable (OTP) cells for setting the output voltages and sequencing give flexibility to configure the PMIC for a wide variety of Advanced Driver Assistance Systems (ADAS) and other in-car applications.

The L5965’s ability to operate directly from the vehicle battery allows its use without a pre-regulator. Its register-programmable outputs also eliminate voltage-setting resistors, and the on-chip regulators can be used without external compensation circuitry. 

The integrated functional-safety features are designed in compliance with ISO 26262 and enable systems to fulfil Automotive Safety Integrity Level (ASIL) requirements up to ASIL-D. The mechanisms include a failure status pin, voltage monitors, ground-loss comparators, analog and digital Built In Self-Test (BIST), and temperature monitors.

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Samples of the L5965 are available now in a 7 mm x 7 mm QFN48 package that requires no heatsink. Budgetary pricing starts at $3.59 each/1,000. For more information, take a peek at the L5965 datasheet.

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