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Renesas RAJ306102GNP#AAN
- Part No.:
- RAJ306102GNP#AAN
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
RAJ306102GNP#AAN.pdf
- Description:
- GENERAL PURPOSE MOTOR CONTROL IC
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
RAJ306102GNP#AAN from Renesas Electronics is a fully integrated 3-phase BLDC motor control IC combining an RL78/G1F MCU and smart gate driver in an 8mm×8mm 64-lead QFN package. It supports bridge voltages from 6V to 65V, delivers 0.64A/1.28A peak source/sink gate drive, integrates three differential current-sense amplifiers (gain configurable to 5/10/20/40 V/V), and enables both sensorless (BEMF) and hall-based commutation for power tools and vacuum cleaners.
For engineers reviewing the RAJ306102GNP#AAN datasheet, RAJ306102GNP#AAN pinout, RAJ306102GNP#AAN application, or RAJ306102GNP#AAN equivalent, this page provides verified technical context, SPI-configurable gate drive parameters, confirmed thermal shutdown and VDS overcurrent protection, and validated alternative part selection guidance for motor control system design.
Technical Context
The RAJ306102GNP#AAN implements a tightly coupled architecture where the RL78/G1F MCU (64KB flash, 5.5KB RAM, 11-channel 10-bit ADC) directly controls the smart gate driver via internal SPI, enabling real-time configuration of dead time, drive strength, and fault response. Its gate driver block includes adaptive dead-time logic, active Miller clamping, and integrated charge pump (VCP output up to 11V above VBRIDGE) to sustain high-side N-MOSFET operation across the full 6–65V bridge range.
Current sensing is implemented through three rail-to-rail differential amplifiers with programmable gain (5/10/20/40 V/V) referenced to AGND, supporting ground-referenced shunt measurement per phase. BEMF sensing uses a dedicated amplifier with multiplexer input, while three comparators support hall sensor inputs - all routed to MCU-integrated timers (RD unit with 2×16-bit channels optimized for motor control) and interrupt controllers for precise commutation timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBRIDGE Range | 6V to 65V - supports wide-input industrial and portable BLDC systems including cordless power tools and robotic vacuum motors. |
| Gate Drive Strength | 0.64A source / 1.28A sink peak - sufficient to drive high-Qg N-channel MOSFETs at switching frequencies up to 500kHz without external buffers. |
| Differential Amp Gain | Configurable 5/10/20/40 V/V - enables accurate ±50mV to ±100mV shunt voltage detection across varying current ranges. |
| Buck Regulator Output | 5V to 15V adjustable (VDRV) - powers gate drivers and LDOs; regulated by FB pin with 0.8V reference and 400–575kHz switching frequency. |
| Operating Temp | −40°C to +105°C ambient - qualified for harsh environments in garden tools, pumps, and industrial actuators. |
| MCU Core | RL78/G1F 16-bit CISC CPU - includes hardware safety compliance for IEC60730 Class B and IEC61508 SIL2 functional safety applications. |
| Package | 8mm × 8mm 64-lead QFN (0.4mm pitch) with exposed thermal pad - enables high-power dissipation (θJA = 21.4°C/W) in compact motor drive PCB layouts. |
Pinout & Package
RAJ306102GNP#AAN uses an 8mm × 8mm 64-lead QFN package with exposed thermal pad (EPAD) requiring connection to PGND for thermal and electrical integrity. Pin functions are partitioned into gate driver (HOA/HOB/HOC, LOA/LOB/LOC, HSA/HSB/HSC), analog sensing (DA1P/DA1N, DA2P/DA2N, DA3P/DA3N), power domains (VBRIDGE, VM, VDRV, VCP, VCC5V, VDD, AGND, PGND, GND_MCU), and MCU I/O (P00–P77, P120, P122, P137, P140, P141).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HOA, HOB, HOC | High-side gate driver outputs | Drive gates of high-side N-MOSFETs; referenced to HSx pins; support 16V clamp and active Miller hold. |
| LOA, LOB, LOC | Low-side gate driver outputs | Drive gates of low-side N-MOSFETs; referenced to PGND; deliver 1.28A sink current for fast turn-off. |
| HSA, HSB, HSC | High-side source sense inputs | Connect to high-side MOSFET sources for VDS monitoring and overcurrent protection. |
| DA1P/DA1N, DA2P/DA2N, DA3P/DA3N | Differential current sense inputs | Accept shunt voltage signals; each pair supports programmable gain for precision phase-current measurement. |
| VCP, CPL, CPH | Charge pump outputs and nodes | VCP supplies high-side gate drive; CPL/CPH connect flying capacitor (100nF) to generate boosted voltage above VBRIDGE. |
| nFAULT (P52) | Fault reporting signal | Active-low open-drain output indicating thermal warning, VDS OC, UV/OV, or charge pump fault - directly interfaces to MCU interrupt. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated buck regulator | 5–15V adjustable VDRV output with 500mA capability and cycle-by-cycle current limiting - eliminates need for external DC/DC converter in motor control subsystems. |
| Programmable gate drive strength | 16-step SPI-adjustable source/sink current - optimizes EMI, switching loss, and MOSFET gate ringing across diverse motor loads and PCB layouts. |
| Adaptive dead-time control | Hardware-enforced minimum dead time with dynamic adjustment based on gate voltage slew rate - prevents shoot-through under varying temperature and supply conditions. |
| Three independent differential amplifiers | Configurable gain (5/10/20/40 V/V) and rail-to-rail input - enables accurate, offset-stable shunt-based current sensing without external op-amps or level-shifting. |
| BEMF sensing amplifier + MUX | Dedicated amplifier with multiplexed input from all three phases - supports robust sensorless commutation without external comparators or discrete analog front-end. |
| Comprehensive fault protection | Includes VBRIDGE OV/UV, VM OV/UV/OC, VDS overcurrent, current-sense OC, thermal warning/shutdown, and MOSFET VGS fault detection - reduces system-level safety certification effort. |
Applications
| Power Tools | Vacuum Cleaners |
|---|---|
Use Scenario: Cordless drill/driver with variable speed and electronic braking. IC Role / Device Role / Timing Role: RAJ306102GNP#AAN executes FOC or trapezoidal commutation, senses phase current via DA1P/DA1N, detects BEMF for zero-crossing timing, and drives 3-phase inverter with adaptive dead time. Use Value: Enables compact, high-efficiency motor control with integrated protection - eliminating discrete gate drivers, current sense amps, and MCU power management ICs. |
Use Scenario: Brushless suction motor with RPM regulation and thermal derating. IC Role / Device Role / Timing Role: RAJ306102GNP#AAN monitors motor temperature via internal sensor, regulates speed using PWM mode, and shuts down on VDS overcurrent during brush jam detection. Use Value: Reduces bill-of-materials count by integrating gate drivers, current sensing, MCU, and power regulation - accelerating time-to-market for consumer appliance designs. |
| Garden Tools | Robotics Actuators |
Use Scenario: Battery-powered hedge trimmer with soft-start and stall protection. IC Role / Device Role / Timing Role: RAJ306102GNP#AAN configures HI/LI control mode, samples shunt voltage on DA2P/DA2N for torque estimation, and triggers thermal warning before shutdown. Use Value: Delivers robust start-up behavior and field-oriented control readiness - critical for high-inertia loads in outdoor equipment. |
Use Scenario: Joint actuator in collaborative robot requiring precise torque control and functional safety. IC Role / Device Role / Timing Role: RAJ306102GNP#AAN runs IEC60730-compliant diagnostics, performs real-time current loop closure using Timer RD, and reports faults via nFAULT and SPI status registers. Use Value: Integrates safety-critical MCU and motor control peripherals in one AEC-Q100-qualified package - simplifying ASIL-B compliance evidence generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-phase BLDC motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0B | Integrated Cortex-M0+ MCU (32KB flash), 65V max VDS, but no integrated buck regulator - requires external 12V supply for gate drivers. | Lacks programmable differential amplifiers and BEMF amplifier; relies on external op-amps for current sensing and comparator for sensorless operation. | Preferred when existing 12V rail is available and cost-sensitive designs prioritize smaller footprint over integration depth. |
| MP6550 | Standalone 3-phase gate driver (no MCU), 65V max VBRIDGE, 1.5A sink, but requires external MCU, current sense amps, and regulators. | No integrated processing or protection logic - necessitates full custom firmware development and additional safety validation effort. | Selected when maximum flexibility in control algorithm implementation is required and system-level integration is handled externally. |
Compared with STSPIN32F0B and MP6550, the RAJ306102GNP#AAN uniquely combines MCU, gate drivers, buck regulator, differential amplifiers, and BEMF sensing in one package - reducing component count by ≥12 devices and shortening safety certification timelines for Class B motor control systems.
Availability
RAJ306102GNP#AAN is available at Aetrix Electronics and suitable for power tools, vacuum cleaners, and robotics applications requiring stable component supply, long-term lifecycle support, and automotive-grade reliability.
Supply support for RAJ306102GNP#AAN 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 is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The RAJ306102GNP#AAN belongs to Renesas' RAJ306x motor control IC family, designed specifically to integrate MCU, gate drivers, and analog sensing for compact, high-efficiency 3-phase BLDC systems in battery-powered appliances and tools.
FAQ
What is the maximum bridge voltage supported by the RAJ306102GNP#AAN?
The RAJ306102GNP#AAN supports a VBRIDGE operating range of 6V to 65V, with an absolute maximum rating of 78V. This allows direct use in 24V, 36V, and 48V battery-powered systems such as cordless power tools and robotic vacuum cleaners without external voltage scaling or protection circuitry.
Does the RAJ306102GNP#AAN include built-in current sensing capability?
Yes, the RAJ306102GNP#AAN integrates three rail-to-rail differential amplifiers (DA1, DA2, DA3) with configurable gain settings of 5, 10, 20, or 40 V/V. These amplifiers accept ground-referenced shunt resistor signals and interface directly to the MCU's 10-bit ADC - eliminating the need for external current sense amplifiers in most BLDC implementations.
How does the RAJ306102GNP#AAN handle thermal protection?
The RAJ306102GNP#AAN includes both thermal warning and thermal shutdown functions. When junction temperature exceeds 125°C, it asserts the nFAULT pin and sets the Thermal Warning bit in the Fault Status register. At 150°C, it initiates hard thermal shutdown, disabling all gate drivers and entering safe state - ensuring compliance with IEC60730 Class B requirements.
Can the RAJ306102GNP#AAN operate in sensorless mode?
Yes, the RAJ306102GNP#AAN supports sensorless BLDC commutation using its dedicated BEMF sense amplifier and multiplexer. The amplifier accepts phase voltage inputs, conditions them for zero-crossing detection, and feeds results to the RL78/G1F MCU's timer and interrupt system - enabling robust startup and continuous rotation without hall sensors or encoders.
What communication interface is used to configure the RAJ306102GNP#AAN gate driver parameters?
The RAJ306102GNP#AAN uses an internal SPI interface between the RL78/G1F MCU and the smart gate driver block. All gate driver settings - including drive strength, dead time, fault mask bits, and sense amplifier gain - are configured via SPI-accessible control registers (e.g., DRVCTL, SNSCTL2, FAULTEN), enabling runtime adaptation without external programming hardware.
RAJ306102GNP#AAN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- -
- Function:
- -
- Output Configuration:
- -
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- -
- Current - Output:
- -
- Voltage - Supply:
- -
- Voltage - Load:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
RAJ306102GNP#AAN FAQ
1.How can I place an order for RAJ306102GNP#AAN through Aetrix?
Please submit a Request for Quotation (RFQ) for RAJ306102GNP#AAN 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 RAJ306102GNP#AAN reliable?
The price and inventory of RAJ306102GNP#AAN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAJ306102GNP#AAN is usually 5 days.
3.What payment methods are accepted for RAJ306102GNP#AAN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAJ306102GNP#AAN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAJ306102GNP#AAN?
RAJ306102GNP#AAN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAJ306102GNP#AAN 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 RAJ306102GNP#AAN?
For technical support, including RAJ306102GNP#AAN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAJ306102GNP#AAN requirements.
6.How does Aetrix verify that RAJ306102GNP#AAN is sourced from the original manufacturer or authorized distributors?
All RAJ306102GNP#AAN 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 RAJ306102GNP#AAN meets industry standards.
7.What is the process for return or replacement of RAJ306102GNP#AAN?
All RAJ306102GNP#AAN units undergo pre-shipment inspection (PSI). If there is an issue with RAJ306102GNP#AAN, 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 RAJ306102GNP#AAN part is unused and in its original packaging.
Return procedure for RAJ306102GNP#AAN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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