Slide 1: Enabling Agility and Scalability when Powering Tomorrow's ADAS Cameras
Enabling Agility and Scalability when Powering Tomorrow’s ADAS Cameras May 2025 EL MEHDI HARRAS: Technical Marketing Engineer elmehdi.harras@Monolithicpower.com
Slide 2: Vehicle Lifecycle
Vehicle Lifecycle SOP SOP+1 SOP+2 SOP+3 SOP+4 SOP+5 SOP+6 SOP+7 Start of Production: Update Existing Update Existing Update Existing Update Existing End of Production: Add New Features Add New Features 2nd Generation 1st Generation Features Features Features Features Time
Slide 3: Domain vs. Zonal Architecture
Domain vs. Zonal Zonal Architecture Domain Architecture Gateway Zonal Zonal Body IVI Telematics Telematics ADAS Parking Central Control ADAS IVI Disruptive Transition Zonal Zonal “Kitchen Sink” Approach Zonal Approach Dedicated ECUs ➔ Not Scalable Zonal ECUs ➔ Highly Scalable • Limited Processing Po
Slide 4: Premium OEMs Have Adopted Various Topologies for E/E Architectures
Premium OEMs Have Adopted Various Topologies for E/E Architectures OEM 1 OEM 2 OEM 3 OEM 4 OEM 5 Zonal Zonal Zonal Zonal Zonal C/D Zonal Zonal C/D C/D C/D C/D C/D C/D C/D C/D Zonal C/D Zonal Zonal C/D Zonal Zonal Zonal Zonal Zonal Zonal Zonal Controller Central Control Unit (CCU) or C/D Domain Contr
Slide 5: New Development Challenges
New Development Challenges CONSUMER Car Lifecycle Hardware Development OEM </> Software Development Tied SW/HW Lifecycles Maintenance 3 to 5 Year Development Cycle SOP EOP OTA Buy New Functions On-Demand CONSUMER Car Lifecycle Hardware Development OEM OS Updates, Bug Fixes & </> Software Development
Slide 6: What's the solution?
What’s the solution? New Zonal Development Architecture Cycle Zonal Topology Vs OEM Solution Highly Flexible Hardware System Zonal Approach Enables the Adaptability Offered by the Software
Slide 7: Camera Use Cases
Camera Use Cases At Least 5 Cameras Are Needed
Slide 8: What Does a Camera Switch Need to Achieve?
What Does a Camera Switch Need to Achieve? At Least 5 Cameras Are Needed ASIL-B and Output/Current Above Safety Scalable Affordable Flexible Capable Configurable BOM Cost Diagnostics
Slide 9: Scalable: Platform Use Case
Zonal Zonal Controller Scalable: Platform Use Case Central Control Unit (CCU) or C/D Domain Control Unit (DCU) L2 L3 2W 3.5W + 5W 1W 1.5W 2.2W 2.2W Challenge? 6W to 10W 15W to 25W • Too Complicated to Add More Cameras • Diagnostics? o Current Sense, Current Limitation ▪ Change through Hardware • Pow
Slide 10: Scalable: Platform Use Case (Current Solution)
Zonal Zonal Controller Scalable: Platform Use Case Central Control Unit (CCU) or C/D Domain Control Unit (DCU) L2 L3 Current Solution 2W 3.5W + 5W 1W 1.5W 2.2W 2.2W Challenge? 6W to 10W 15W to 25W • Too Complicated to Add More Cameras • Diagnostics? o Current Sense, Current Limitation ▪ Change throu
Slide 11: Scalable: Platform Use Case (L4/5)
Zonal Zonal Controller Scalable: Platform Use Case Central Control Unit (CCU) or C/D Domain Control Unit (DCU) L2 L3 L4/5 2W 3.5W + 5W 1W 1.5W 2.2W 2.2W Challenge? 6W to 10W 15W to 25W 40W to 60W • Too complicated to add more cameras • What about increasing the power • Diagnostics? rating and number
Slide 12: Flexible: Platform Use Case
Zonal Zonal Controller Flexible: Platform Use Case Central Control Unit (CCU) or C/D Domain Control Unit (DCU) Tier 1/2 New ADAS Platform Need to Address Requirements Such As: • Flexible Power Rating • Flexible # Output • Multiple Camera Drivers Need to Address Challenges Such As: • Data • Camera Po
Slide 13: Flexible: Platform Use Case
Zonal Zonal Controller Flexible: Platform Use Case Central Control Unit (CCU) or C/D Domain Control Unit (DCU) Tier 1/2 New ADAS Platform Need to Address Challenges Such As: • Camera Position vs. Harness Direction 3MP How to adapt to different OEM 3MP topologies? 1MP 3MP
Slide 14: Diagnostics/Safety: Use Case
Diagnostics/Safety: Use Case System What diagnostics Goal is to achieve are needed to reach safety level of the target safety ASIL-B/C/D level? Safety Capable
Slide 15: MPQ77240FS/MPQ5864-AEC1
MPQ77240FS-AEC1/MPQ5864-AEC1 Power Power Supply A Supply B ASIL-B, 18V, Quad High-Side Switch with Reverse Protection VINA VINB Max 1A Max 1A OUT_A1 OUT_A1 OUT_B1 OUT_B1 ASIL-B and Max 1A Output/Current OUT_A2 Max 1A OUT_A2 OUT_B2 OUT_B2 Above 3.3V SDA MPQ77240FS VDD CVDD SCL MCU GND EN RADDR FT ADD
Slide 16: MPQ77240FS – Functional Diagram and I2C Control
MPQ77240FS – Functional Diagram and I2C Control MPQ77240FS OUT_A1 VINA OUT_A2 Power Section: Two Independent Power Rails OUT_B1 • OUTA Suppled by VINA • OUTB Supplied by VINB VINB OUT_B2 Achieve ASIL-B level with following features: • Redundant Bandgap Charge Pump & Gate Driver • Clock Error Detecti
Slide 17: Diagnostics & Protections
Diagnostics & Protections MPQ77240FS OUT_ VINA OUT_ Short Circuit Use Case OUT_ • Behavior is configurable to auto-retry or latch-off mode VINB OUT_ • Channel 2 is not be affected by the fault and is completely independent Charge Pump & Gate Driver • The fault is reported both on the FT pin and via
Slide 18: Example of Customer Safety Goal
Example of Customer Safety Goal Data Customer safety goal: Avoid loss of the camera feed (ASIL-B) Power How to achieve ASIL-B ? → The FIT rate must be below 75 What if higher ASIL level is required? Dual-Channel High-Side Switch
Slide 19: Example of Customer Safety Goal
Example of Customer Safety Goal Data Customer safety goal: Avoid loss of the camera feed (ASIL-B) Power How to achieve ASIL-B ? → The FIT rate must be below 75 Dual-Channel High-Side Switch Monitoring for Reaching ASIL Metric Targets
Slide 20: How MPS Is Enabling Functional Safety
How MPS Is Enabling Functional Safety ISO 26262 Safety Manual Document Description Developed According to ISO 26262 • Device Base Fail Rate (BFR) • Functional Failure Modes • Safety Analysis Results • Safety Related Configurations • Safety Mechanisms • Assumptions of Use • And More Lower effort to g
Slide 21: Quad Camera Switch: MPS vs. Competitor A
Quad Camera Switch: MPS vs. Competitor A • MPS is rated for 800mA and can drive night vision (NV) cameras, Competitor A at 600mA cannot • MPS has individual current limit set-up, Competitor A only has global • MPS RDS(ON) = 180mΩ → small VDROP (Competitor A is 2x) Comp A
Slide 22: Quad Camera Switch: MPS vs. Competitor B
Quad Camera Switch: MPS vs. Competitor B • MPS is rated for 800mA and can drive night vision (NV) cameras, Competitor A at 600mA cannot • MPS has individual current limit set-up, Competitor B only has global • MPS RDS(ON) = 180mΩ → small VDROP (Competitor B is 2x) Test conditions: MPQ5864, VIN = 11.
Slide 23: Recap
Recap MPQ77240FS OUT_A1 • Available with 2-Channel or VINA OUT_A2 4-Channel Output • Two Independent Inputs OUT_B1 Scalable • Each Input Can Be Driven VINB OUT_B2 Independently Independent Current Limit & Diagnostics Charge Pump & Gate Driver Oscillator Thermal Sense VDD BandGap Current Limit Curren
Slide 24: Thank you!
Thank you! mrS
Slide 25: Powering Tomorrow's ADAS Cameras
Enabling Agility and Scalability when Powering Tomorrow’s ADAS Cameras May 2025