TLF35584 OPTIREG™ PMIC for Safety-Relevant Applications Ralph M. Trunk (IFAG ATV PSN PM) September 2019
TLF35584 OPTIREG™ PMIC for Safety-Relevant Applications
25 nov. 2021 — EN/Wake (T15 and CAN/FlexRay™). › SPI. › Safety Features. – Multiple bandgap. (supply vs V-monitoring). – UV/OV-Monitoring, ERR-Monitoring.
TLF35584 OPTIREGTM PMIC for Safety-Relevant Applications Ralph M. Trunk (IFAG ATV PSN PM) September 2019 TLF35584 OPTIREGTM Functional Safety PMIC Key Features > Buck/Boost-Pre-Regulator IQ = 1.25A; f: 300kHz-2.5MHz > µC-Supply: 3.3V/5V @ 600mA > Reference-LDO: 5V @ 150mA (±1%) > 2x Tracker: 5V @ 150mA > Communication-Supply: 5V @ 200mA > StandBy-LDO: 3.3V/5V @ 10mA > EN/Wake (T15 and CAN/FlexRayTM) > SPI > Safety Features supporting ASIL-D systems Functional-WD & Window-WD ERR-Monitoring Multiple independent bandgaps UV/OV-Monitoring Safe State Control Secondary Safety Path Protected safety area Built In Self Test Development acc. ISO26262 (ASIL-D) > Vin: 4V .. 40V Package 2019-09-09 PG-VQFN-48 PG-LQFP-64 Copyright © Infineon Technologies AG 2019. All rights reserved. 2 TLF35584 OPTIREGTM FuSa-PMIC Applications > Powertrain Engine Management Transmission Transfer Case Clutch Actuator Starter Generator (e.g ISG) > xEV Battery Management Inverter On-Board Charger ... > Chassis/Safety Electrical Power Steering Electr. Steering Column Lock Braking (e.g Brake Booster) Electr. Parking Brake Active Suspension Chassis Control Domain Control ADAS Domain Control ... 2019-09-09 Copyright © Infineon Technologies AG 2019. All rights reserved. 3 TLF35584 OPTIREGTM FuSa-PMIC Features - Benefits Features ISO26262-compliant Benefits Usage in applications with ASIL-requirement Boost capability Ensure operation in cold cranking condition Pre-/Post-Regulator architecture High Efficiency Multiple voltage supplies System supply: µC, communication, sensors Dedicated reference voltage supply Bandgap for both safety and supply plus electrical isolation WWD & Q/A-WD ADC-supply independent of µC-load Avoid common cause failures Flexible WD to achieve proper ASIL-level BIST (analog & logic) Ensuring "safe" operation UV/OV-monitoring Flexible RESET/interrupt management Flexible safe state control Ensuring "safe" operation 2019-09-09 Enable/Wake Flexible wake-up management Copyright © Infineon Technologies AG 2019. All rights reserved. 4 TLF35584 OPTIREGTM FuSa-PMIC Application Diagram VBatt CAN-Bus FlexRay-Bus Boost-/BuckPre-Regulator OPTIREGTM PMIC TLF35584 FuSa-Supply UV-/OVMonitoring Safe State Controller Secondary Safety Path Com LDO Tracker1 Tracker2 Ref LDO StBy LDO µC LDO Interrupt & Reset Generator Window- & Error- Q/A-Watchdog Monitoring VTx VSensor1/2 CAN Transceiver FlexRay Transceiver Sensor Sensor VRef ADC VStBy VµC INT RES WD ERR Embedded Voltage Regulator Interrupt Reset WD Handler 32 Bit MultiCore µC AURIXTM / AURIXTM 2G TC2xx / TC3xx Safety Management Unit Primary Safety Path Fail Safe Circuitry 2019-09-09 Copyright © Infineon Technologies AG 2019. All rights reserved. 5 TLF35584 - OPTIREGTM FuSa-PMIC 2019-09-09 Copyright © Infineon Technologies AG 2019. All rights reserved. 6 External Safety Integrity Functions Required By AURIXTM-µC To Achieve ASIL-D Detect under and over voltage of the external supply to avoid malfunctions or permanent damage to the MCU Recommended reaction: Shut-down power supply rails to avoid damages; µC RESET, trigger ECU safe state Detect dependent failures which cause the function as well as the diagnostic to fail (e.g. failure on clock or power supply) Recommended reaction: Trigger ECU safe state, µC RESET In case of failure condition, Safe State Control triggers RESET of µC and brings the application into a safe state (e.g. shut-down, phase separation, etc.) 2019-09-09 The FSP indicates an internal failure of the MCU, therefore the other outputs of the MCU cannot be trusted when the FSP is in fault state. Recommended reaction: Trigger ECU safe state, µC RESET Note: the green blocks represent functions to be allocated to external devices, not hardware components. Copyright © Infineon Technologies AG 2019. All rights reserved. 7 OPTIREGTM FuSa-PMIC TLF35584 Genesis of Safety Requirements > TLF35584 has been defined based on AURIX requirements for external monitoring > Those requirements have then been extended to support also other MCUs. Choice between 2 types of watchdog (Window- & Functional-Watchdog) Ability to monitor MCU core supply > TLF35584 is developed as Safety Element out of Context (SEooC) supporting ASIL-D acc. ISO26262 OPTIREGTM PMIC TLF35584 Voltage Monitor 2019-09-09 Safe State Activation (e.g. power switch, Trx de-activation) Safe State Control MCU Error Monitor Watchdog Copyright © Infineon Technologies AG 2019. All rights reserved. GPIO / SPI (or alternative ) AURIXTM PORST VEXT SMUFSP 8 OPTIREGTM FuSa-PMIC TLF35584QV Variants: PG-VQFN-48 Sales Name Design Step Design-In preference Marking Line1 Marking Line2 Package µC-Supply Standby Supply Reference Regulator Communication Supply Sensor Supplies TLF35584QVVS1 C13 Not for new designs! TLF35584 C14 Active and Preferred! 35584 VS1 VS1 PG-VQFN-48-31 5V 5V 5V 5V 5V TLF35584QVVS2 C13 Not for new designs! TLF35584 C14 Active and Preferred! 35584 VS2 VS2 PG-VQFN-48-31 3.3V 3.3V 5V 5V 5V 2019-09-09 Copyright © Infineon Technologies AG 2019. All rights reserved. 9 OPTIREGTM FuSa-PMIC TLF35584QK Variants: PG-LQFP-64 Sales Name Order-Number (C14-step) Package Marking Line1 Marking Line2 µC-Supply Standby-Supply Reference-Regulator Communication-Supply Sensor-Supplies TLF35584QKVS1 SP001613988 PG-LQFP-64-18 TLF35584 QK VS1 5V 5V 5V 5V 5V TLF35584QKVS2 SP001613990 PG-LQFP-64-18 TLF35584 QK VS2 3.3V 3.3V 5V 5V 5V 2019-09-09 Copyright © Infineon Technologies AG 2019. All rights reserved. 10 OPTIREGTM FuSa-PMIC TLF35584 Additional Information Sales Product Name OPN SAP Mat Nr Design step TLF35584QKVS1 TLF35584QKVS1XUMA2 SP001613988 C14 TLF35584QKVS2 TLF35584QKVS2XUMA2 SP001613990 C14 TLF35584QVVS1 TLF35584QVVS1XUMA2 SP001657934 C14 TLF35584QVVS1 TLF35584QVVS1XUMA1 SP001096170 C13 TLF35584QVVS2 TLF35584QVVS2XUMA1 SP001096172 C13 TLF35584QVVS2 TLF35584QVVS2XUMA2 SP001657936 C14 Add. Status Info active and preferred active and preferred active and preferred Not for new designs Not for new designs active and preferred Package Functional Packing Moisture Protect. Pack Large Packing Unit PG-LQFP-64-18 PG-LQFP-64-18 PG-VQFN-48-31 PG-VQFN-48-31 PG-VQFN-48-31 PG-VQFN-48-31 Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel Tape & Reel DRY DRY DRY DRY DRY DRY 1900 1900 2500 2500 2500 2500 2019-09-09 Copyright © Infineon Technologies AG 2019. All rights reserved. 11Microsoft PowerPoint 2016 Microsoft PowerPoint 2016