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Renesas RAA270000KFT#HA3
- Part No.:
- RAA270000KFT#HA3
- Manufacturer:
- Renesas
- Category:
- Power Management - Specialized
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
RAA270000KFT#HA3.pdf
- Description:
- AUTOMOTIVE OTHERS
- Quantity:
- Payment:
- Shipping:
Inventory:3,165
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Product details
Overview
RAA270000KFT#HA3 from Renesas is a general-purpose Power Management IC (PMIC) designed for RH850 E1x/C1x microcontrollers, integrating two current-mode DCDC converters (5.7V/1000mA and 1.25V/700mA), four LDOs (3.3V/10mA, 5.0V/300mA, 3.3V/160mA, 5.0V/60mA), two linear trackers (150mA), automatic power sequencing, watchdog timer, and thermal shutdown. It operates from 6.0V–18.5V input and supports automotive power rail management.
For engineers reviewing the RAA270000KFT#HA3 datasheet, RAA270000KFT#HA3 pinout, RAA270000KFT#HA3 application, or RAA270000KFT#HA3 equivalent, this PMIC delivers integrated voltage regulation, real-time monitoring via analog multiplexer and ADC interface, configurable reset behavior, and SPI-controlled configuration - all in a 64-pin QFP package with exposed die pad for thermal performance.
Technical Context
The RAA270000KFT#HA3 implements a fixed-frequency 2.1MHz oscillator for DCDC control and sequencer timing, enabling fast transient response and compact external filter design. Its internal sequencer enforces deterministic power-up/down order across all regulators without external logic, while the SPI interface allows register-level control of watchdog windowing, reset sources (ERROR1/2, DETDC2L, DET2L), and advanced WDT modes.
Monitoring is performed through dedicated analog inputs (VADC, MUXOUT, BUFAD) and digital status pins (INTOUT, ERROR1/2, RSTB), with internal temperature sensing feeding thermal shutdown at Tsd and recovery at Trls. All LDOs and trackers include short-circuit protection, and DCDC converters feature current-mode control with feedback via FBDC1/FBDC2A/B pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 6.0V to 18.5V - ensures full regulator operation in automotive battery environments including cold-crank and load-dump conditions. |
| DCDC1 Output | 5.7V / 1000mA - supplies power to downstream LDOs and DCDC2; enables point-of-load conversion with minimal external components. |
| DCDC2 Output | 1.25V / 700mA - directly powers RH850 MCU core with tight regulation and low noise for stable processor operation. |
| LDO1 Output | 5.0V / 300mA - powers MCU peripherals and I/O domains; includes overcurrent and thermal foldback protection. |
| Switching Frequency | 2.1MHz - allows use of small ceramic output capacitors and low-profile inductors, reducing board area and EMI. |
| Thermal Shutdown Threshold | Tsd = 150°C - protects silicon integrity during overload or poor heatsinking; automatic recovery occurs below Trls. |
| Package | 64-pin QFP, 12mm × 12mm with exposed die pad - provides low thermal resistance (θJA = 19.4°C/W) for sustained high-current operation. |
Pinout & Package
RAA270000KFT#HA3 uses a 64-pin exposed die pad QFP package (12mm × 12mm) optimized for thermal dissipation in automotive under-hood applications. The package includes separate analog (AGND1/2) and power (PGND1/2) ground planes internally connected to minimize noise coupling between sensitive analog circuits and high-current switching paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN0 / EN1 | PMIC enable control | Dual independent enable inputs allow flexible system-level power gating; either pin high activates full PMIC operation. |
| VINPDC1A/B | DCDC1 input supply | Accepts 6.0V–18.5V input; powers DCDC1 and feeds LDOs/trackers; supports parallel connection for higher current capability. |
| LX1A/LX1B | DCDC1 switch node outputs | Drive external inductor pair in dual-phase configuration; enables interleaved operation for reduced ripple and improved efficiency. |
| FBDC1 | DCDC1 feedback input | Resistor-divider input for precise 5.7V output regulation; supports external compensation network tuning. |
| VOUT1 / VOUT2 | LDO1/LDO2 outputs | 5.0V/300mA and 3.3V/160mA regulated outputs; each includes current limit and thermal shutdown protection. |
| TREF1 / TREF2 | Tracker reference inputs | Accept external voltage references (e.g., battery or pre-regulated rail); enable 150mA tracking outputs with short-circuit protection. |
| SPISDI / SPISDO / SPICLK / SPICSB | SPI interface signals | Full-duplex 4-wire SPI for register read/write, configuration lock, and real-time status monitoring (e.g., PINMON, CONF). |
| INTOUT | Interrupt request output | Open-drain signal asserted on fault events (over-temperature, undervoltage, watchdog timeout) or successful power-up completion. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Sequencing | Hardware-enforced startup/shutdown order eliminates need for external timing circuitry or firmware coordination across 6 regulated rails. |
| Configurable Watchdog Timer | Windowed WDT with SPI- or WDI-triggered refresh; supports advanced mode for enhanced fault detection coverage in safety-critical systems. |
| Analog Multiplexer Interface | MUXOUT pin routes internal analog voltages (temperature sensor, reference, regulator outputs) to MCU ADC for closed-loop monitoring and diagnostics. |
| Reset Generator with Multiple Sources | Hardware reset triggered by EN0/EN1 deassertion, DCDC2/LDO2 undervoltage, ERROR1/2 assertion, or thermal shutdown - configurable per application needs. |
| Functional Safety Support | Includes self-diagnostic routines, voltage monitoring with programmable thresholds, and fail-safe behavior (e.g., forced shutdown on overtemperature). |
Applications
| Automotive Body Control Module (BCM) | RH850-Based ADAS Domain Controller |
|---|---|
Use Scenario: Centralized power delivery for door modules, lighting drivers, and sensor interfaces in 12V vehicle architectures. IC Role / Device Role / Timing Role: Primary PMIC supplying 5.7V for CAN transceivers and 1.25V for RH850 core, with sequenced enable of 3.3V/5.0V rails for peripheral logic. Use Value: Eliminates discrete regulator count by >6 devices; reduces BOM cost and layout area while ensuring ASIL-B compatible power sequencing. | Use Scenario: Power management for multi-core RH850 C1x processors running camera fusion and radar preprocessing algorithms. IC Role / Device Role / Timing Role: Delivers tightly regulated 1.25V core voltage with <±2% accuracy and fast transient response, synchronized with 5.7V I/O rail via hardware sequencer. Use Value: Enables deterministic boot timing and runtime voltage stability required for ISO 26262-compliant functional safety mechanisms. |
| Industrial Motor Drive HMI Panel | Commercial Vehicle Telematics Gateway |
Use Scenario: Powering ARM-based display controller and touch interface alongside RH850 safety monitor in harsh EMC environments. IC Role / Device Role / Timing Role: Supplies isolated 3.3V/5.0V rails to display driver and communication ICs; uses TRACK1/2 to track auxiliary 12V supply for battery-backed functions. Use Value: Linear trackers provide seamless switchover during main power loss; LDOAD's 5.0V/60mA rail powers isolated CAN FD transceivers with low noise. | Use Scenario: Compact telematics unit requiring robust power for LTE modem, GNSS receiver, and RH850 E1x host MCU under wide input voltage range (9–16V). IC Role / Device Role / Timing Role: Manages power-up sequence across modem (5.0V), GNSS (3.3V), and MCU core (1.25V); monitors input voltage via VINR and reports faults via INTOUT. Use Value: Built-in voltage detectors and SPI-accessible status registers reduce firmware overhead for power health monitoring and predictive maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| RAA270001KFT#HA3 | Same pinout and register map; differs only in product code (0x01 vs 0x00) and minor factory calibration - functionally identical for all design purposes. | No difference in supported RH850 series, sequencing behavior, or electrical specs; validated for identical automotive temperature and EMC requirements. | Select when sourcing requires traceability to specific wafer lot or revision; no design change needed. |
| TPS65381A-Q1 | 3-channel DCDC + 5 LDOs; higher integration but lacks analog multiplexer, tracker outputs, and SPI-configurable watchdog windowing. | Targeted at broader automotive MCU families (not RH850-optimized); requires external sequencing logic for complex power trees. | Choose for non-RH850 platforms needing higher channel count; avoid if analog monitoring or tracker functionality is required. |
Compared with RAA270000KFT#HA3, RAA270001KFT#HA3 offers identical functionality with guaranteed compatibility, while TPS65381A-Q1 provides greater regulator count at the expense of RH850-specific features like tracker outputs and SPI-accessible temperature monitoring - making RAA270000KFT#HA3 optimal for cost-sensitive, RH850-integrated automotive designs requiring diagnostic visibility.
Availability
RAA270000KFT#HA3 is available at Aetrix Electronics and suitable for automotive body control modules, RH850-based ADAS domain controllers, and industrial motor drive HMI panels requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 1 qualification.
Supply support for RAA270000KFT#HA3 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and infrastructure markets.
The RAA270000KFT#HA3 belongs to Renesas' automotive-grade PMIC product line, engineered specifically to simplify power architecture design for RH850 microcontrollers in safety-critical vehicle systems.
FAQ
What is the recommended input voltage range for reliable operation of the RAA270000KFT#HA3?
The RAA270000KFT#HA3 operates reliably across an input voltage range of 6.0V to 18.5V for full functionality. At 5.4V–5.9V, it enters partial operation mode where DCDC1 stops switching but LDOs, DCDC2, and trackers remain active without low-voltage detection. Below 3.9V, the device remains powered but does not assert reset - making RAA270000KFT#HA3 suitable for extended battery brownout scenarios in automotive applications.
How does the RAA270000KFT#HA3 handle thermal protection, and what happens when junction temperature exceeds limits?
The RAA270000KFT#HA3 integrates a thermal shutdown circuit that triggers at Tsd = 150°C, forcing immediate power-down of all regulators except LDO0 and asserting RSTB low. Recovery begins only after junction temperature falls below Trls (~135°C), at which point the device re-enters Stand-by state. This behavior is documented in Section 4.13.1 and ensures silicon reliability during sustained overload or inadequate heatsinking in under-hood deployments.
Can the RAA270000KFT#HA3 be used without an external microcontroller for basic power sequencing?
Yes - the RAA270000KFT#HA3 performs autonomous power-up and power-down sequencing using its internal state machine, requiring only proper EN0/EN1 assertion and valid input voltage. No external MCU or firmware is needed to coordinate the startup order of its six regulated outputs. However, SPI communication is required to configure watchdog parameters, interrupt sources, or read diagnostic data such as temperature or error flags from the RAA270000KFT#HA3.
What are the key differences between the DCDC1 and DCDC2 regulators in the RAA270000KFT#HA3?
DCDC1 delivers 5.7V at up to 1000mA and serves as the primary power source for downstream LDOs and DCDC2; it uses VINPDC1A/B inputs and is controlled via FBDC1 feedback. DCDC2 generates 1.25V at up to 700mA specifically for RH850 MCU core supply, accepts VINPDC2A/B inputs, and employs FBDC2A/B for regulation. Both operate at 2.1MHz but differ in output voltage, current capability, and system role - DCDC1 for power distribution, DCDC2 for precision core regulation.
Does the RAA270000KFT#HA3 support functional safety compliance, and which ISO 26262 ASIL level is targeted?
The RAA270000KFT#HA3 includes functional safety features such as self-diagnostic routines, redundant voltage monitoring, configurable reset sources, and thermal fault reporting - supporting ASIL B compliance when integrated into a properly architected system. While the device itself is not certified to a specific ASIL level, its design aligns with ISO 26262 Part 5 requirements for hardware safety mechanisms, and Renesas provides FMEDA reports and safety manuals to assist customers in achieving ASIL B decomposition in RH850-based automotive ECUs using the RAA270000KFT#HA3.
RAA270000KFT#HA3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 64-TQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- General Purpose
- Current - Supply:
- -
- Voltage - Supply:
- 6V ~ 18.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-QFP (10x10)
RAA270000KFT#HA3 FAQ
1.How can I place an order for RAA270000KFT#HA3 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAA270000KFT#HA3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for RAA270000KFT#HA3 reliable?
The price and inventory of RAA270000KFT#HA3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAA270000KFT#HA3 is usually 5 days.
3.What payment methods are accepted for RAA270000KFT#HA3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAA270000KFT#HA3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAA270000KFT#HA3?
RAA270000KFT#HA3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAA270000KFT#HA3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for RAA270000KFT#HA3?
For technical support, including RAA270000KFT#HA3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAA270000KFT#HA3 requirements.
6.How does Aetrix verify that RAA270000KFT#HA3 is sourced from the original manufacturer or authorized distributors?
All RAA270000KFT#HA3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that RAA270000KFT#HA3 meets industry standards.
7.What is the process for return or replacement of RAA270000KFT#HA3?
All RAA270000KFT#HA3 units undergo pre-shipment inspection (PSI). If there is an issue with RAA270000KFT#HA3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The RAA270000KFT#HA3 part is unused and in its original packaging.
Return procedure for RAA270000KFT#HA3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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