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Renesas RAJ306102GNP#HA1
- Part No.:
- RAJ306102GNP#HA1
- Manufacturer:
- Renesas
- Category:
- Motor Drivers, Controllers
- Package:
- -
- Datasheet:
-
RAJ306102GNP#HA1.pdf
- Description:
- GENERAL PURPOSE MOTOR CONTROL IC
- Quantity:
- Payment:
- Shipping:
Inventory:2,950
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Product details
Overview
RAJ306102GNP#HA1 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 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 warning/shutdown, and buck regulator fault detection - deployed in power tools and robotic vacuum cleaners.
For engineers reviewing the RAJ306102GNP#HA1 datasheet, RAJ306102GNP#HA1 pinout, RAJ306102GNP#HA1 application, or RAJ306102GNP#HA1 equivalent, this page provides verified functional specifications, SPI-configurable dead-time and drive strength, confirmed sensorless (BEMF) and hall-based motor control modes, validated thermal shutdown behavior at 125°C junction, and exact pin mapping for HOA/LOA/HSA/DA1P/PC/FB/VM/EPAD.
Technical Context
The RAJ306102GNP#HA1 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 torque commutation and fault response. All gate timing parameters - including adaptive dead-time, HI/LI or PWM mode selection, and active gate-holding - are programmable through dedicated registers.
Its analog subsystem includes three configurable differential amplifiers for shunt-based phase current sensing, a dedicated BEMF amplifier with multiplexer, three comparators for hall sensor inputs, and dual LDOs (5V/100mA and 5V/500mA buck) supporting sleep-mode IQ of 28μA. Protection logic operates independently of MCU firmware, reporting faults via nFAULT pin and Fault Status registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBRIDGE Range | 6V to 65V - supports wide-input industrial and cordless tool battery stacks up to 18S Li-ion. |
| Gate Drive Strength | 0.64A source / 1.28A sink peak - drives N-channel MOSFET half-bridges with fast switching and Miller immunity. |
| Differential Amp Gain | 5, 10, 20, or 40 V/V - enables precise ground-referenced shunt current measurement across load ranges. |
| Buck Regulator Output | 5V to 15V adjustable (VDRV) - powers gate drivers and charge pump; 500mA rated output current. |
| Operating Temp | −40°C to +105°C ambient - qualified for demanding power tool and robotics environments. |
| MCU Core | RL78/G1F 16-bit CISC - 64KB code flash, hardware safety compliance per IEC60730/IEC61508. |
| Sleep Current | 28μA VM supply - enables ultra-low-power standby in battery-operated devices. |
Pinout & Package
RAJ306102GNP#HA1 uses an 8mm × 8mm 64-lead QFN package with exposed thermal pad (EPAD) requiring PCB ground connection. Pin pitch is 0.4mm. Package meets JEDEC MO-220 standards and supports reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HOA, HOB, HOC | High-side gate driver outputs | Drive N-channel MOSFET gates referenced to HSx pins; support 17.2V clamp and active hold. |
| LOA, LOB, LOC | Low-side gate driver outputs | Drive N-channel MOSFET gates referenced to PGND; 11.95V high-level output at 1mA load. |
| HSA, HSB, HSC | High-side source sense inputs | Connect to high-side MOSFET source terminals for VDS monitoring and OC protection. |
| DA1P/DA1N, DA2P/DA2N, DA3P/DA3N | Differential current sense inputs | Accept shunt voltage signals with programmable gain; enable accurate phase current feedback. |
| PC, FB | Buck regulator compensation & feedback | PC connects gm amplifier output for loop stability; FB sets VDRV output via 0.8V reference. |
| VM, VBRIDGE, VCP, VDRV | Power domain supplies | VM powers logic/gate driver core; VBRIDGE feeds high-side switches; VCP powers charge pump; VDRV supplies gate drivers. |
| nFAULT, P146/EN, P52/INTP1 | Fault signaling & control | nFAULT is open-drain active-low fault indicator; EN enables/disables device; INTP1 maps to nFAULT interrupt. |
| EPAD | Thermal pad | Mandatory ground connection for thermal dissipation and EMI reduction; electrically tied to PGND. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 3-phase gate driver + MCU | Eliminates external microcontroller and discrete gate driver components, reducing BOM count and layout area by >40%. |
| Configurable dead-time & drive strength | SPI-adjustable dead-time prevents shoot-through; 16-step drive strength optimizes EMI vs. switching loss trade-off. |
| Three differential current sense amps | Programmable gain (5–40 V/V) enables single-shunt or three-shunt current sensing without external op-amps. |
| BEMF sensing + hall comparator support | On-chip BEMF amplifier and three comparators allow seamless transition between sensorless and hall-based commutation. |
| Hardware-level protection suite | Independent analog/digital fault detection (VDS OC, thermal warn/shutdown, buck UV/OV/OC) ensures fail-safe operation without MCU intervention. |
| Sleep Mode IQ = 28μA | Enables multi-week battery standby in portable tools and robotic appliances without compromising responsiveness. |
Applications
| Power Tools | Garden Tools |
|---|---|
|
Use Scenario: Cordless drill/driver with variable speed and electronic brake. IC Role / Device Role / Timing Role: RAJ306102GNP#HA1 executes FOC or trapezoidal commutation, senses phase current via DA1P/DA1N, detects BEMF zero-crossings, and manages gate timing with adaptive dead-time. Use Value: Enables compact, high-torque motor control with <100ms brake response and overtemperature shutdown at 125°C junction. |
Use Scenario: Brushless string trimmer with RPM regulation and stall protection. IC Role / Device Role / Timing Role: RAJ306102GNP#HA1 monitors VDS across HSA/HSB/HSC for MOSFET overcurrent, regulates speed using internal 16-bit Timer RD, and triggers thermal warning before shutdown. Use Value: Delivers reliable stall recovery and extends battery runtime via 28μA sleep current and efficient 500mA buck regulator. |
| Vacuum Cleaners | Robotics |
|
Use Scenario: High-speed BLDC suction motor with dust-load compensation. IC Role / Device Role / Timing Role: RAJ306102GNP#HA1 samples current via three differential amplifiers, computes torque demand in RL78/G1F CPU, and adjusts PWM duty cycle using Timer array unit. Use Value: Maintains constant airflow across filter clogging via real-time current-based load estimation and closed-loop speed control. |
Use Scenario: Autonomous floor-sweeping robot with obstacle-avoidance motor control. IC Role / Device Role / Timing Role: RAJ306102GNP#HA1 runs dual-motor control (left/right wheels) using independent Timer RD channels, reads hall sensors via CMP1O/CMP2O, and reports faults on nFAULT for system-level diagnostics. Use Value: Reduces system latency to <1ms fault-to-response time while supporting simultaneous sensorless startup and hall-based steady-state operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar motor control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STSPIN32F0B | Integrated Cortex-M0+ MCU, no BEMF amplifier; requires external op-amp for shunt sensing; 60V max VDS. | Limited to sensorless startup only; lacks dedicated hall comparator outputs and thermal warning flag. | Prefer when cost-sensitive designs accept added external components and reduced protection granularity. |
| Infineon IFX007T | Standalone 3-phase gate driver (no MCU); requires external controller; 40V max VBRIDGE; no integrated buck or LDOs. | Needs full external power tree and firmware stack; suitable only for designs retaining legacy MCU architecture. | Select when existing RL78 or ARM-based firmware must be retained and gate driver integration alone is required. |
Compared with STSPIN32F0B and IFX007T, RAJ306102GNP#HA1 uniquely combines MCU, gate driver, analog sensing, and power management in one die - eliminating six external ICs, reducing PCB area by 35%, and enabling certified functional safety (IEC60730) without additional hardware.
Availability
RAJ306102GNP#HA1 is available at Aetrix Electronics and suitable for power tools, robotic vacuum cleaners, and garden equipment requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability under −40°C to +105°C operation.
Supply support for RAJ306102GNP#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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
RAJ306102GNP#HA1 belongs to Renesas' RAJ306x motor control IC family, designed specifically to consolidate BLDC control functionality - MCU, gate drivers, analog front-end, and power regulation - into a single package for compact, high-efficiency portable and industrial motor systems.
FAQ
What is the maximum bridge voltage supported by RAJ306102GNP#HA1?
RAJ306102GNP#HA1 supports a recommended operating range of 6V to 65V on the VBRIDGE pin, with an absolute maximum rating of 78V. This allows direct compatibility with common 12V–60V battery platforms used in cordless power tools and robotic appliances. Operation above 65V requires careful thermal and voltage transient management per Section 5.1 of the datasheet.
Does RAJ306102GNP#HA1 support both sensorless and hall-based BLDC commutation?
Yes, RAJ306102GNP#HA1 natively supports both methods: BEMF sensing via its integrated BEMF amplifier and multiplexer (HSA/HOB/HSC inputs), and hall sensor interfacing using its three general-purpose comparators (CMP1O/CMP2O/CMP3O outputs mapped to P55/P54/P53). The RL78/G1F MCU executes commutation logic for either mode without external components.
What is the function of the EPAD pin on RAJ306102GNP#HA1?
The EPAD (exposed thermal pad) on RAJ306102GNP#HA1 is a mandatory ground connection for thermal dissipation and EMI suppression. It is electrically tied to PGND and must be soldered to a large PCB copper pour connected to system power ground. Thermal resistance θJA is specified at 21.4°C/W with proper EPAD grounding per JEDEC test board TB379.
How is gate drive strength configured on RAJ306102GNP#HA1?
RAJ306102GNP#HA1 provides 16-step adjustable gate drive strength controlled via SPI register ISRC_HS[3:0]. Each step scales the peak source current (up to 0.64A) and sink current (up to 1.28A), allowing optimization of switching speed, gate ringing, and MOSFET gate charge requirements without changing external components.
What protection features are implemented in hardware on RAJ306102GNP#HA1?
RAJ306102GNP#HA1 implements hardware-level protections independent of MCU firmware: VBRIDGE/VM supply OV/UV lockout, buck regulator OV/UV/OC, charge pump UV, MOSFET VDS overcurrent, current-sense OC, MOSFET VGS fault detection, thermal warning (115°C), and thermal shutdown (150°C). All faults assert the nFAULT pin and set corresponding bits in the Fault Status registers.
RAJ306102GNP#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:
- -
RAJ306102GNP#HA1 FAQ
1.How can I place an order for RAJ306102GNP#HA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for RAJ306102GNP#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 RAJ306102GNP#HA1 reliable?
The price and inventory of RAJ306102GNP#HA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RAJ306102GNP#HA1 is usually 5 days.
3.What payment methods are accepted for RAJ306102GNP#HA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RAJ306102GNP#HA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RAJ306102GNP#HA1?
RAJ306102GNP#HA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RAJ306102GNP#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 RAJ306102GNP#HA1?
For technical support, including RAJ306102GNP#HA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RAJ306102GNP#HA1 requirements.
6.How does Aetrix verify that RAJ306102GNP#HA1 is sourced from the original manufacturer or authorized distributors?
All RAJ306102GNP#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 RAJ306102GNP#HA1 meets industry standards.
7.What is the process for return or replacement of RAJ306102GNP#HA1?
All RAJ306102GNP#HA1 units undergo pre-shipment inspection (PSI). If there is an issue with RAJ306102GNP#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 RAJ306102GNP#HA1 part is unused and in its original packaging.
Return procedure for RAJ306102GNP#HA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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