Slide 1: A Revolution in Electronic Smart Fuses: STi²Fuse
A Revolution in Electronic Smart Fuses: STi²Fuse Revolution in Automotive Key Features and Benefits Controller IC Roadmap
Slide 2: A new approach to fuse management in modern vehicles
A new approach to fuse management in modern vehicles Electronic Smart Fuses Electronic Smart Fuses replacing both standard fuses and relays with advanced diagnostic and enhanced functional safety Main Advantages Smart Power FAST: Reaction time / two orders of magnitude faster Mechanical Power Distri
Slide 3: Smart fuses for power distribution with smart digital interface
Smart fuses for power distribution with smart digital interface ST S in Boosting Performance Adding Robustness and Functional Safety Radar Based System T sampling L5965S and STPM066S Family: for both 24-77 GHz Sampling from Q1’20 State of Health - CCM – Large Capacitor Autonomous Wire 12V Boardnet S
Slide 4: Melting fuses drawbacks
Melting fuses drawbacks • Dimensioned on peak current, not on RMS current • Tripping much earlier than the cable reaching a critical temperature • Oversize cables, connectors and PCB traces • Unlimited current capability for tens of milliseconds • Does not prevent fault propagation to the upstream p
Slide 5: An ST invention for an absolute protection: I²t programmable curve
An ST invention for an absolute protection I2t programmable curve Whatever the electrification level or power train architecture The concept The advantages • Smaller and fault tolerant CO2 FUSE current • Dimensioned on RMS load current and current unlimited limited VIP-FUSE Current • Simplified, lig
Slide 6: Active stand-by ON
Active stand-by ON Standby Switch VCC Standby Switch Standby Main Switch • Reduced stand-by consumption in Switch Enable sleeping modules (e.g. parking + functions) VSD MAX • Standby Switch Normally-ON with low - quiescent current Turn_on_cmd • Up to 600mA current capability + • Fast self wake up Cu
Slide 7: STi²Fuse controller: VNF1048F
STi²Fuse controller: VNF1048F Focus Applications: 1. Power Distribution Unique ST patented I2t programmable curve (eFuse) 2. Fuses replacement and Active Standby ON 3. High current loads Unique broad range of operating voltage (6 to 60V) Full programmability and diagnostics via SPI Enhanced protecti
Slide 8: STi²Fuse controller: VNF1048F
STi²Fuse controller: VNF1048F Block Diagram Main Features VBAT_48V • Controller with eFuse functionality for 12/24/48V applications • Operating supply voltage range 6V – 60V (AMR 70V) • Operating Temperature Range -40°C – 150°C CP VBAT_48V CP1 • Gate drive for an external MOSFET(s) in high side conf
Slide 9: VNF1048F eFuse functionality
VNF1048F eFuse functionality eFuse simulator tool and evaluation kit with GUI available Nominal Trip Current Nominal Trip time (T_NOM) 1-511 sec Hard Short Threshold Nominal (HSHT_THR) Overcurrent 20-160 mV Threshold (OVC_THR) 6-90 mV
Slide 10: STi2Fuse Portfolio & Roadmap
STi2Fuse Portfolio & Roadmap Qualification Schedule L99SP08 Quad QFN”F” QFN”Q” (8 channels 6x6mm 7x8.5mm companion chip) Power SSO-36 ” Y” VNF9Q20F (**) 10.3x10.3mm Notes: (*) will be available with and without Standby ON, different part numbers VNF9D1M5Q (***) Dual (**) standby ON not supported (**
Slide 11: VIPower for Power Distribution STi²Fuse roadmap
VIPower for Power Distribution STi²Fuse roadmap Application Segment Products Roadmap • Monolithic devices in QFN 6x6 Electronic Smart M0-9 SPI technology Double ch Quad ch VNF9D5F VNF9Q20F Fuses QFN 6x6 Qualified by: H2 2023 replacing both standard • Hybrid devices in PowerQFN 7x8.5 fuses and relays