3-Phase Smart Gate Driver for BLDC Motor Applications
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Overview
Description
The RAA306012 is a smart gate driver for 3-phase brushless DC (BLDC) motor applications. It integrates three half-bridge gate drivers that are capable of driving up to three N-channel MOSFET bridges and supports bridge voltages from 6V to 65V. Each gate driver supports up to 0.64A source and 1.28A sink peak drive current with adjustable drive strength control. Adaptive and adjustable dead times are implemented to ensure robustness and flexibility. The active gate holding mechanism prevents Miller effect induced cross-conduction and further enhances robustness.
The device integrates power supplies that power internal analog and logic circuitry, high-side/low-side gate drivers, and a dedicated supply for powering external microcontrollers. The RAA306012 also features a low-power sleep mode that consumes only 28μA to maximize battery life in portable applications.
Related Products
RAJ306101： RAA306012 + RX13T
RAJ306102： RAA306012 + RL78/G1F
Features
- Operating power supply voltage:
- VBRIDGE: 6V to 65V (78V abs max)
- Voltage max (VM): 6V to 60V (65V abs max)
- Operating ambient temperature: -40 °C to 125 °C
- 3-Phase gate drivers for BLDC applications
- Switching frequency range up to 200kHz
- Peak 0.64A/1.28A source/sink current with 16 adjustable drive strength through SPI interface
- Adaptive and adjustable dead time
- Flexible configuration for gate driver
- 3-phase HI/LI mode and 3-phase PWM mode
- Input control signal configuration
- Support half-bridge, full-bridge configuration
- Fully integrated power supply architecture
- Two VCC LDOs allow for Sleep mode low IQ
- 500mA buck switching regulator generates drive voltage (5V to 15V adjustable)
- 100mA adjustable output LDO for MCU supplies (3.3V to 5V adjustable)
- Three accurate differential amplifiers
- Four levels of sense gain setting
- Supports DC offset calibration during power-up and on-the-fly
- BEMF sense amplifier for sensorless motor drive
- Three comparators for hall sensor motor drive
- Integrated protection features
- 7mm x 7mm 48 Ld QFN package (0.5mm pitch)
Comparison
Applications
Applications
- Cordless power tools
- Outdoor power equipment
- Vacuum cleaners
- Fans
- Pumps
- Robotics
- Medical equipment
- Industrial motor drives
Design & Development
Software & Tools
Software & Tools
| Software title
|
Software type
|
Company
|
|---|---|---|
| C/C++ Compiler Package for RX Family [CC-RX] C/C++ Compiler Package for RX Family [IDE: CS+, e² studio, High-performance Embedded Workshop]
|
Compiler/Assembler | Renesas |
| RX Smart Configurator RX Smart Configurator is a utility for combining software in ways that meet your needs. It simplifies the embedding of Renesas drivers in your systems through supports for importing middleware and drivers and configuring pins.
|
Solution Toolkit | Renesas |
| e² studio - Information for the RX Family Eclipse-based Renesas integrated development environment (IDE).
|
IDE and Coding Tool | Renesas |
| Renesas Motor Workbench Renesas Motor Workbench is a development support tool for debugging, analyzing, and tuning motor control programs.
|
Solution Toolkit | Renesas |
| Code Generator Plug-in Automatic driver generation tool for internal peripheral I/O modules through GUI settings [Standard features for Renesas IDE "e² studio" and CS+] [Support MCU/MPU: RL78, V850, 78K, RX]
|
Code Generator | Renesas |
| C Compiler Package for RL78 Family [CC-RL] C Compiler Package for RL78 Family [IDE: CS+, e² studio]
|
Compiler/Assembler | Renesas |
| Renesas Flash Programmer (Programming GUI) Flash memory programming software [Support MCU/MPU and devices: RA, RE, RX, RL78, RH850, RISC-V MCU Renesas Synergy, DA1459x, DA1469x, DA1470x, Power Management, Renesas USB Power Delivery Family, ICs for Motor Driver/Actuator Driver, V850, 78K0R, 78K0]
|
Programmer (Unit/SW) | Renesas |
| CS+ Renesas integrated development environment (IDE) [Support MCU/MPU: RH850, V850, RX, RL78, 78K0R, 78K0]
(Note: CS+ is not generally promoted to U.S. and European customers.)
(Note: To use Smart Configurator on CS+ for RL78/G23 and RX family MCUs, install the Smart Configurator for each MCU family separately downloading from ”Design & Support” > ”Development Tools” > ”Smart Configurator”)
|
IDE and Coding Tool | Renesas |
| e² studio - information for RL78 Family Eclipse-based Renesas integrated development environment (IDE).
|
IDE and Coding Tool | Renesas |
| E2 emulator Lite [RTE0T0002LKCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RL78, RX, RISC-V MCU]
|
Emulator | Renesas |
| E2 emulator [RTE0T00020KCE00000R] On-chip debugging emulator. Also available as a flash memory programmer. [Support MCU/MPU: RA, RE, RH850, R-Car D1, RL78, RX, RISC-V MCU]
|
Emulator | Renesas |
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Sample Code
Boards & Kits
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| QFN | Tray | 3 | Get Samples, | |
| QFN | Reel | 3 | Get Samples, |
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Videos & Training
RAA306012 Smart Gate Driver IC for 3-Phase Brushless DC (BLDC) Motor Applications
RAA306012 integrates three half-bridge smart gate drivers and supports bridge voltages from 6V to 65V. Each gate driver supports up to a 0.64A source and 1.28A sink peak drive current with programmable drive strength control. Adjustable and adaptive dead times are implemented to ensure robustness and flexibility.
Video List