The Allegro A81481 is a single-chip 48V power management IC (PMIC) engineered for safety-critical automotive ECU and industrial robotics designs. Featuring integrated dual buck regulators and five LDO outputs, it delivers complete system power and safety regulation directly from a 48V battery without requiring an external pre-regulator or complex discrete circuitry. To guarantee failsafe robotic and automotive control, it integrates a triple-watchdog architecture tracking and short-circuit protected LDOs to cleanly power remote sensing arrays and CAN networks This integrated architecture replaces conventional multi-chip approaches, cutting bill-of-materials (BOM) count, simplifying hardware layout, and reducing total system cost by approximately 50% while satisfying ASIL-D compliance in ADAS, xEV powertrain, and robotics applications.
Product Details
Product Details
Top Features
- Compatible with 48V Automotive battery standards & harsh Industrial enviroments: operating range 12-72V, 80V abs max engineered to handle severe inductive voltage spikes and transients.
- Failsafe Microcontroller Monitoring (Triple Watchdog / QAWD) for industrial robotics and automotive applications as it ensures the primary processor is on and executing code correctly.
- Protected LDOs & CAN Network Power: High-accuracy (1%) LDOs with integrated short-circuit protection to safely and cleanly power remote sensors, encoders, and industrial CAN communication lines.
- A2-SIL™ product: Developed as a hardware safety element out of context with ASIL D capability for use in automotive safety-related systems
- Automotive AEC-Q100 Grade 0 qualified
- Dual stage buck output 12.5V and 5.4V optimizing system efficiency and thermal performance to feed the low voltage LDOs
