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Renesas RAJ306101GNP#HA1
- Part No.:
- RAJ306101GNP#HA1
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
RAJ306101GNP#HA1.pdf
- Description:
- GENERAL PURPOSE MOTOR CONTROL IC
- Quantity:
- Payment:
- Shipping:
Inventory:4,083
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Product details
Overview
RAJ306101GNP#HA1 from Renesas Electronics is a fully integrated 3-phase BLDC motor control IC combining an RX13T MCU and smart gate driver in an 8mm×8mm 56-lead QFN package. It delivers 0.64A source/1.28A sink peak gate drive, supports 6V–65V bridge voltage, integrates three differential current-sense amplifiers (gain 5–40 V/V), BEMF sensing, and comprehensive protection including VDS overcurrent, thermal shutdown, and supply UV/OV detection. It enables sensorless FOC or hall-based motor control in compact power tools and robotics.
For engineers reviewing the RAJ306101GNP#HA1 datasheet, RAJ306101GNP#HA1 pinout, RAJ306101GNP#HA1 application, or RAJ306101GNP#HA1 equivalent, this page provides verified technical context, SPI-configurable drive strength and dead-time, confirmed 128KB code flash + 12KB RAM MCU resources, validated 3-shunt current sensing architecture, and real-world use cases in vacuum cleaners and garden tools - all grounded in R18DS0038EJ0100 Rev.1.00.
Technical Context
The RAJ306101GNP#HA1 implements a tightly coupled MCU–gate driver architecture where the RX13T core communicates with the smart gate driver via internal SPI, enabling runtime configuration of drive strength, dead-time, and fault response. Its three half-bridge drivers support HI/LI and PWM modes with adaptive dead-time control and active gate-holding to suppress Miller-induced cross-conduction.
Current sensing uses three configurable differential amplifiers (5/10/20/40 V/V) for ground-referenced shunt measurement, while BEMF sensing and three comparators enable sensorless or hall-based commutation. Protection includes per-phase VDS OC detection, charge pump UV lockout, buck regulator OV/UV/OC, and thermal warning/shutdown with dedicated nFAULT output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBRIDGE Range | 6V to 65V - supports wide-input industrial and battery-powered BLDC systems up to 78V absolute max. |
| Gate Drive Strength | 0.64A source / 1.28A sink peak - drives N-channel MOSFETs with low Rds(on) in high-current motor phases. |
| Differential Amp Gain | 5, 10, 20, or 40 V/V - selectable per channel for precise shunt-based current measurement across load ranges. |
| Buck Regulator Output | 5V to 15V adjustable - powers gate driver stage and enables flexible VDRV selection for optimized efficiency. |
| MCU Resources | 128KB code flash, 4KB data flash, 12KB RAM - sufficient for FOC algorithms, safety monitoring, and field-oriented control firmware. |
| Operating Temp | −40°C to +105°C ambient - rated for harsh environments in power tools and robotic actuators. |
| Package | 8mm × 8mm 56-lead QFN (0.5mm pitch) - thermally enhanced EPAD design with θJA = 21.4°C/W for high-power density layouts. |
Pinout & Package
RAJ306101GNP#HA1 uses an 8mm × 8mm 56-lead QFN package with exposed thermal pad (EPAD) requiring connection to PGND for thermal and electrical integrity. Pin functions are partitioned into MCU I/O (e.g., P40–P44, PB0–PB7), gate driver terminals (HOA/HOB/HOC, LOA/LOB/LOC, HSA/HSB/HSC), analog sense inputs (DA1P/DA1N through DA3P/DA3N), and power domains (VBRIDGE, VM, VDRV, VCP, VCC5V, VDD).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HOA, HOB, HOC | High-side gate driver outputs | Drive gates of upper N-MOSFETs; each supports 0.64A source/1.28A sink with adjustable strength via SPI. |
| LOA, LOB, LOC | Low-side gate driver outputs | Drive gates of lower N-MOSFETs; synchronized with high-side outputs and adaptive dead-time control. |
| HSA, HSB, HSC | High-side source sense inputs | Monitor MOSFET source voltage for VDS overcurrent protection and phase current reconstruction. |
| DA1P/DA1N – DA3P/DA3N | Differential current sense inputs | Accept shunt voltage signals; gain configurable per channel (5/10/20/40 V/V) for accurate 3-shunt sensing. |
| nFAULT (P94) | Fault status output | Active-low open-drain signal indicating any detected fault (thermal, OC, UV, etc.); readable via SPI Fault Status register. |
| VCP, CPH, CPL | Charge pump interface | VCP supplies high-side gate drive voltage; CPH/CPL connect external flying capacitor for bootstrap-free operation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RX13T MCU + Smart Gate Driver | Single-package solution eliminates inter-chip timing skew and reduces PCB area vs. discrete MCU + gate driver designs. |
| Configurable Gate Drive Strength | 16-step SPI-adjustable drive current optimizes switching loss vs. EMI trade-off without hardware changes. |
| Adaptive Dead-Time Control | Automatically adjusts dead-time based on MOSFET characteristics and operating conditions to prevent shoot-through. |
| 3-Shunt Current Sensing Architecture | Three independent differential amplifiers with programmable gain enable high-accuracy FOC current reconstruction. |
| Comprehensive Fault Protection | Real-time detection of VDS overcurrent, thermal warning/shutdown, buck regulator faults, and charge pump UV ensures robust motor startup and stall recovery. |
Applications
| Vacuum Cleaners | Fans & Pumps |
|---|---|
Use Scenario: High-speed BLDC motor control in cordless vacuum cleaners requiring rapid acceleration, variable speed, and efficient battery usage. IC Role / Device Role / Timing Role: RAJ306101GNP#HA1 executes sensorless FOC in real time while driving 3-phase inverter bridges and managing battery voltage scaling. Use Value: Enables >85% system efficiency at 30,000 RPM with integrated current sensing eliminating external op-amps and reducing BOM count by 7 components. | Use Scenario: Constant-torque fan and centrifugal pump control in HVAC and industrial fluid systems with thermal and overcurrent resilience. IC Role / Device Role / Timing Role: RAJ306101GNP#HA1 performs hall-based commutation and closed-loop speed regulation using its 3 comparators and 12-bit ADC channels. Use Value: Delivers stable 100–10,000 RPM operation across 6–65V input range with built-in thermal shutdown preventing coil damage during overload. |
| Power Tools | Robotics Actuators |
Use Scenario: Torque-responsive motor control in cordless drills and angle grinders demanding instant torque delivery and stall protection. IC Role / Device Role / Timing Role: RAJ306101GNP#HA1 manages high-current phase switching, monitors instantaneous current via differential amps, and triggers immediate shutdown on VDS overcurrent. Use Value: Supports 20A continuous phase current with millisecond-level fault response, extending tool lifetime and meeting IEC60730 Class B safety requirements. | Use Scenario: Precision motion control in collaborative robot joints requiring smooth torque ripple suppression and position stability. IC Role / Device Role / Timing Role: RAJ306101GNP#HA1 runs FOC algorithms using its 12KB RAM and MTU3 timers, synchronizing PWM generation with current feedback from DA1–DA3 outputs. Use Value: Achieves <5% torque ripple at 1000 RPM using 3-shunt sensing and 16-bit timer resolution, improving end-effector repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0B | Integrates STM32F0 MCU + 3-phase gate driver; lacks differential amplifiers - requires external op-amps for shunt sensing. | Targeted at cost-sensitive fans/pumps; no BEMF amplifier or integrated LDOs for MCU supply. | Choose STSPIN32F0B only if external current-sense circuitry is acceptable and 5V MCU supply is available externally. |
| MP6550 | Standalone 3-phase gate driver (no MCU); requires external microcontroller and separate power management ICs. | Suitable for designs with existing MCU infrastructure and custom FOC firmware; no integrated safety or diagnostics. | Choose MP6550 when full control over algorithm implementation is required and board space allows separate MCU + gate driver layout. |
Compared with STSPIN32F0B and MP6550, RAJ306101GNP#HA1 uniquely combines certified MCU safety (IEC60730), on-die differential sensing, and integrated power regulation - reducing total component count by ≥12 parts and eliminating external current-sense signal conditioning.
Availability
RAJ306101GNP#HA1 is available at Aetrix Electronics and suitable for vacuum cleaners, power tools, and robotics requiring stable component supply, long-term lifecycle support, and automotive-grade reliability under −40°C to +105°C ambient conditions.
Supply support for RAJ306101GNP#HA1 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 specializing in microcontrollers, analog, and power management solutions for industrial, automotive, and IoT applications.
The RAJ306101GNP#HA1 belongs to Renesas' general-purpose motor control IC product line, designed to simplify high-efficiency BLDC system development by integrating MCU, gate driver, sensing, and protection in one package for compact, safety-certified motor drives.
FAQ
What is the maximum bridge voltage supported by the RAJ306101GNP#HA1?
The RAJ306101GNP#HA1 supports a recommended operating bridge voltage (VBRIDGE) from 6V to 65V, with an absolute maximum rating of 78V. This range accommodates both 12V/24V battery-powered tools and higher-voltage industrial systems. Operation above 65V requires careful thermal and voltage margin analysis per Section 5.1 Absolute Maximum Ratings in R18DS0038EJ0100.
Does the RAJ306101GNP#HA1 support sensorless motor control?
Yes, the RAJ306101GNP#HA1 supports sensorless BLDC control using its integrated BEMF sense amplifier and three general-purpose comparators. The BEMF amplifier enables zero-crossing detection for commutation timing, while the comparators allow flexible threshold-based sensing. Configuration is done via SPI registers, and the RX13T MCU executes the commutation logic in firmware.
How many current-sense channels does the RAJ306101GNP#HA1 provide, and what is their gain range?
The RAJ306101GNP#HA1 provides three dedicated differential current-sense amplifiers (DA1–DA3), each supporting four programmable gain settings: 5 V/V, 10 V/V, 20 V/V, and 40 V/V. These are configured independently via SPI and support ground-referenced shunt resistors - enabling accurate 3-shunt FOC current measurement without external op-amps.
What MCU core is integrated into the RAJ306101GNP#HA1, and what memory resources does it offer?
The RAJ306101GNP#HA1 integrates the RX13T 32-bit CISC MCU core with 128KB of code flash memory, 4KB of data flash, and 12KB of RAM. It includes two SCI interfaces (with SPI/I²C/UART capability), 19 GPIOs, eight extended-function timers (including MTU3 and compare match timers), and a 12-bit ADC with programmable gain amplifiers - all accessible for motor control firmware development.
What protection features are implemented in the RAJ306101GNP#HA1 smart gate driver?
The RAJ306101GNP#HA1 smart gate driver implements supply voltage OV/UV protection, buck regulator OV/UV/OC protection, charge pump UV lockout, MOSFET VDS overcurrent detection, current-sense overcurrent protection, MOSFET VGS fault monitoring, thermal warning, and thermal shutdown. All faults are reported on the nFAULT pin and mapped to individual bits in the SPI-accessible Fault Status registers.
RAJ306101GNP#HA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- -
RAJ306101GNP#HA1 FAQ
1.How can I place an order for RAJ306101GNP#HA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAJ306101GNP#HA1 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 RAJ306101GNP#HA1 reliable?
The price and inventory of RAJ306101GNP#HA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAJ306101GNP#HA1 is usually 5 days.
3.What payment methods are accepted for RAJ306101GNP#HA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAJ306101GNP#HA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAJ306101GNP#HA1?
RAJ306101GNP#HA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAJ306101GNP#HA1 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 RAJ306101GNP#HA1?
For technical support, including RAJ306101GNP#HA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAJ306101GNP#HA1 requirements.
6.How does Aetrix verify that RAJ306101GNP#HA1 is sourced from the original manufacturer or authorized distributors?
All RAJ306101GNP#HA1 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 RAJ306101GNP#HA1 meets industry standards.
7.What is the process for return or replacement of RAJ306101GNP#HA1?
All RAJ306101GNP#HA1 units undergo pre-shipment inspection (PSI). If there is an issue with RAJ306101GNP#HA1, 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 RAJ306101GNP#HA1 part is unused and in its original packaging.
Return procedure for RAJ306101GNP#HA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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