TLF35584QVHS2XUMA1 - ASIL-D PMIC | Infineon | OPTIREG
MPN: TLF35584QVHS2XUMA1 ✓ AktifTLF35584QVHS2XUMA1 Ringkasan
An automotive safety PMIC is a highly integrated DC/DC and LDO regulator system designed to deliver deterministic, monitored power rails to safety-critical microcontrollers. PMICs belong to the broader power-management semiconductor category, alongside discrete DC-DC converters, LDOs, and battery management ICs. The TLF35584 family specifically targets ISO 26262 ASIL-D functional safety requirements, embedding window watchdog, error pin monitoring, fail-safe output state machine, and configurable reset behavior.
Key features include a primary step-down (buck) regulator for the microcontroller core, two auxiliary buck converters, a 5 V / 3.3 V LDO, a tracker/supply for off-board sensors, an SPI/parallel configuration interface, independent safety state machine, ABIST (logic BIST), and LBIST (ADC BIST) support, plus a dedicated error output to the host MCU. The wide 3.0 V to 40 V input range tolerates cranking transients and load-dump events on the automotive 12 V bus.
Architecturally the device combines synchronous buck converters, low-dropout regulators, and an integrated spread-spectrum oscillator to minimize EMI, while dedicated safety logic supervises undervoltage, overvoltage, watchdog timing, and thermal conditions. The exposed thermal pad and Grade 0 qualification allow direct placement near the microcontroller in safety-critical ECUs without secondary heatsinking.
Typical applications include AURIX TC3xx safety microcontrollers in electric power steering (EPS), airbag ECUs, ADAS domain controllers, brake controllers, and electrified powertrain ECUs. For multi-rail safety systems, the TLF35584 simplifies board design by replacing four to six discrete regulators and external supervisors with a single ASIL-D-capable IC.
When designing with this device, follow Infineon's recommended input bulk/ceramic capacitor network, observe SPI pull-up conventions, and verify the fail-safe state machine configuration with the TLF35584 safety manual. The error output pin must be routed to a host MCU interrupt for ASIL-D compliance.
Pilihan pengganti yang segera untuk TLF35584QVHS2XUMA1 — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera TLF35584QVHS2XUMA1 (sama faktor bentuk dan kaki) — berbeza dalam Package, AEC-Q100 Qualification, Product Type.
TLF35584QVHS1
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
TLF35584QVHS2
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
TLE92633BQXXUMA2
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak DisahkanHubungi untuk harga
Lihat Datasheet →TLE9180D32QKXUMA1
✅ Masuk Drop-In ⚠️ Spesifikasi Tidak DisahkanHubungi untuk harga
Lihat Datasheet →TLF35584QVHS2XUMA1 Penilaian maksimum & Ciri-ciri Elektrik
| Product Type | Multi-rail Automotive Safety PMIC (OPTIREG) |
| Input Voltage Range (operating) | 3.0 V to 40 V |
| Konfigurasi Output | 8 regulated outputs |
| Functional Safety Level | ISO 26262 ASIL-D (system-capable) |
| Kemasan | PG-VQFN-48 (7 mm x 7 mm) with exposed thermal pad |
| Suhu Hubungan Operasi | -40 °C to +175 °C (Grade 0 automotive) |
| Kiraan Pin | 48 |
| Jenis Pemasangan | Surface Mount |
| Configuration Interface | SPI / parallel |
| Integrated LDO Output | 3.3 V / 5 V selectable |
| Safety Features | Window watchdog, error pin, fail-safe state machine, ABIST, LBIST |
| Status RoHS | Compliant |
| AEC-Q100 Qualification | Qualified (Grade 0) |
| Primary Application | Automotive safety microcontrollers (e.g., AURIX TC3xx) |
Panduan Konfigurasi Pin TLF35584QVHS2XUMA1 pg-vqfn-48 (7 mm x 7 mm) with exposed thermal pad
Konfigurasi pin untuk TLF35584QVHS2XUMA1 (pg-vqfn-48 (7 mm x 7 mm) with exposed thermal pad pakai). Peranti kuasa ini mempunyai terminal kawat, buang, dan sumber. Untuk pakai non-polarized, rujuk dokumen pengeluar untuk orientasi pin 1 tepat dan perincian kebentuk.
Tiada data garisan pin yang diperoleh untuk TLF35584QVHS2XUMA1.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
TLF35584QVHS2XUMA1 patut untuk 6 aplikasis: Electric Power Steering (EPS) ECU, Airbag / Restraint Control Unit, ADAS Domain Controller, Brake Control (ABS/ESC) ECU, Electrified Powertrain Inverter ECU, Battery Management System (BMS) Master Controller.
Electric Power Steering (EPS) ECU
The TLF35584QVHS2XUMA1 is purpose-built to power AURIX TC3xx microcontrollers in electric power steering ECUs, where ISO 26262 ASIL-D is mandatory. Its 3.0 V to 40 V input tolerates load-dump and cranking transients on the 12 V vehicle bus, while the eight regulated rails deliver the core 1.3 V, 3.3 V, and 5 V supplies needed by the MCU, CAN transceivers, and sensor front-ends. The integrated window watchdog and fail-safe state machine meet ASIL-D decomposition requirements without an external supervisor, reducing PCB area in the steering column module.
Disebarkan
Airbag / Restraint Control Unit
Airbag ECUs demand the highest functional-safety integrity (ASIL-D) and a deterministic supply rail. The TLF35584QVHS2XUMA1 delivers this with its integrated ABIST/LBIST self-tests, window watchdog, and dedicated error pin routed to the AURIX MCU interrupt. With Grade 0 / +175 °C junction temperature rating, it survives under-hood thermal stress without secondary heatsinking. Compared to a discrete regulator + supervisor solution, the TLF35584 cuts BOM count, simplifies safety case documentation, and shrinks the PCB footprint for the squib driver area.
Disebarkan
ADAS Domain Controller
Centralized ADAS domain controllers based on AURIX TC3xx require multi-rail power with deterministic sequencing under all fault conditions. The TLF35584QVHS2XUMA1's eight configurable rails and SPI-controlled sequence give board designers full flexibility to power radar MCUs, camera SoCs, and Lidar processing nodes. The 40 V input tolerance handles transients on long wire harnesses, while the fail-safe state machine autonomously transitions the rails to a safe state if the host MCU stops servicing the watchdog - critical for fail-operational ADAS architectures targeting ASIL-D.
Disebarkan
Brake Control (ABS/ESC) ECU
Anti-lock braking and electronic stability control ECUs operate in the harshest automotive environment, requiring ASIL-D power delivery and Grade 0 thermal performance. The TLF35584QVHS2XUMA1 powers the AURIX TC3xx MCU that runs the vehicle dynamics control loop, with the integrated window watchdog providing the dual-channel supervision required by ISO 26262. The exposed-pad PG-VQFN-48 package dissipates the device's full-load heat into the ECU housing copper, eliminating the need for a discrete heatsink in the brake module.
Disebarkan
Electrified Powertrain Inverter ECU
In battery-electric and hybrid vehicles, the traction inverter ECU combines AURIX TC3xx with IGBT/SiC gate drivers and needs an ASIL-D multi-rail supply. The TLF35584QVHS2XUMA1 supplies the MCU core, gate-driver logic, and CAN-FD transceiver, while its SPI interface allows the MCU to dynamically enable/disable rails for low-voltage standby. With 3.0 V to 40 V input tolerance, the PMIC operates directly from the 12 V auxiliary battery, simplifying the HV-to-LV DC-DC stage and supporting functional-safety requirements for ASIL-D inverter control.
Disebarkan
Battery Management System (BMS) Master Controller
In 400 V and 800 V EV battery packs, the BMS master controller uses AURIX TC3xx to manage cell balancing, state-of-charge, and isolation monitoring. The TLF35584QVHS2XUMA1 provides the deterministic multi-rail supply and ASIL-D safety supervision required by ISO 26262 for the battery pack controller. Its wide 3.0 V to 40 V input range allows direct connection to the 12 V low-voltage bus of the pack, and the fail-safe state machine guarantees the controller enters a safe state if the watchdog is not serviced.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk TLF35584QVHS2XUMA1 — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | TLF35584QVHS1 | TLF35584QVHS2 | TLE92633BQXXUMA2 | TLE9180D32QKXUMA1 |
|---|---|---|---|---|---|
| Package | PG-VQFN-48 (7x7 mm) | PG-VQFN-48 (same) | PG-VQFN-48 (same) | VQFN-48 family (different pinout) | VQFN-48 family (different pinout) |
| Brand | Infineon | Infineon | Infineon | Infineon | Infineon |
| Functional Safety Level | ASIL-D | ASIL-D | ASIL-D | ASIL-B | ASIL-D (gate driver PMIC) |
| Input Voltage Range | 3.0 V to 40 V | 3.0 V to 40 V | 3.0 V to 40 V | 4.5 V to 28 V | 3.0 V to 40 V |
| Number of Outputs | 8 | 8 | 8 | 3 | 5 |
| Junction Temperature | -40 to +175 °C (Grade 0) | -40 to +175 °C | -40 to +175 °C | -40 to +150 °C | -40 to +150 °C |
| Window Watchdog | Yes (integrated) | Yes | Yes | No | No (gate-driver PMIC) |
| Configuration Interface | SPI / parallel | SPI / parallel | SPI / parallel | SPI | SPI |
Penyeberangsung Jelas
- Integrated ASIL-D safety with 8 rails vs typical 3-4 rails (vsTLE92633BQXXUMA2)
- Dedicated safety PMIC vs multi-function gate-driver PMIC (vsTLE9180D32QKXUMA1)
- Grade 0 thermal headroom vs Grade 1 (vsTLE92633BQXXUMA2)
Catatan Desain
Estimated: at VIN=13.5 V with the device supplying the full AURIX TC3xx core + peripherals (~5 W total output power), the TLF35584QVHS2XUMA1 dissipates approximately 1.5 W internally. The PG-VQFN-48 package requires a copper pour area of at least 2 cm² on the top layer connected to the exposed pad, plus thermal vias to an inner/outer plane, to keep the junction rise within Grade 0 limits at +175 °C ambient corner. Inadequate copper results in thermal shutdown and reset loops.
Place the input bulk capacitor (≥10 µF ceramic + 47 µF electrolytic) within 5 mm of the VIN pin to suppress load-dump transients. Keep the buck-switching node traces short and use a 4-layer PCB with a continuous ground plane below the PMIC to minimize EMI. The exposed thermal pad must be soldered with via arrays (0.3 mm drill, 0.6 mm pitch) per Infineon application note recommendations.
Always initialize the TLF35584 over SPI on every MCU boot and service the window watchdog in the correct time window - missing the service window triggers the fail-safe state machine and may latch the outputs off. The error pin (ERR) must be routed to a host MCU interrupt, not a GPIO. Refer to the Infineon safety manual for the required ASIL-D diagnostic coverage and dual-channel watchdog configuration.
Maklumat Kesediaan
AEC-Q100 Grade 0 qualified per Infineon product page. ISO 26262 ASIL-D system-capable with integrated safety features. RoHS and REACH compliant.
