Datasheet
RAJ306101
Rev.1.00
General Purpose Motor Control IC
Oct 5, 2023
1 Description
2 Features
• Operating power supply voltage:
- VBRIDGE: 6V to 65V (78V abs max)
- VM: 6V to 60V (65V abs max)
• Operating ambient temperature: -40°C to 105°C
• Supply current, VM current:
The RAJ306101 is a general-purpose motor control
IC for 3-phase brushless DC (BLDC) motor
applications. RAJ306101 combines a smart gate
driver and MCU (RX13T) in a single package.
The smart gate driver includes three half-bridge gate
drivers, a buck switching regulator and a charge
pump for the gate drive voltage, two LDOs for the
internal analog and logic circuitry and MCU, three
accurate differential amplifiers, a BEMF sense
amplifier, three general purpose comparators, and
extensive protection functions.
- MCU, VDD current: 3.1mA (ICLK=32MHz)
- Smart gate driver:
Operating Mode: 2mA, Sleep Mode: 28μA
• 8mm×8mm 56 Ld QFN package (0.5mm pitch)
Smart gate driver function
• 3-Phase drive for BLDC application
The three half-bridge gate drivers are capable of
driving up to three N-channel MOSFET bridges and
support 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.
- Peak 0.64A/1.28A source/sink current with 16
adjustable drive strength through SPI interface
- Adaptive and adjustable dead time
- 3-phase HI/LI mode and 3-phase PWM mode
- Input control signal configuration
• Fully integrated power supply architecture
- Two 5V LDOs allow for Sleep Mode low IQ
- 500mA buck switching regulator for the gate
drive voltage (5V to 15V adjustable)
- 100mA adjustable output LDO for MCU supplies
• Three differential amplifiers with configurable gain
for current sensing (5, 10, 20, 40V/V)
Three accurate differential amplifiers with adjustable
gain support ground-side shunt current sensing for
each bridge. The device can also support both BLDC
sensor/sensorless motor drive by the three general
purpose comparators or a BEMF sense amplifier.
• BEMF sense amplifier for sensorless motor drive
• Three comparators for hall sensor motor drive
• Extensive protection functions
MCU (RX13T) function
The protection functions include supply voltage
OV/UV protection, buck regulator OV/UV/OC
protection, charge pump UV protection, MOSFET
VDS OC protection, current sense OC protection,
MOSFET VGS fault, thermal warning, and thermal
shutdown.
• CPU: 32bit CISC CPU
• Code flash: 128KB, Data flash: 4KB, RAM: 12KB
• SCI: 2 channels (SPI: 2ch, I2C: 2ch, UART: 2ch)
1ch of SPI: common use with internal communication
• GPIO: 19 channels (I/O: 18ch, Input: 1ch)
• Up to 8 extended-function timers
The smart gate driver can be configured to use SPI
interface by the internal connection with MCU. All the
parameters can be set through the SPI interface, and
allows better monitoring. Fault conditions are
reported on the nFAULT signal and each status bit in
the Fault Status registers.
- 16-bit multi-function timer pulse unit 3 (6ch)
- 16-bit compare match timers (2ch)
• Independent watchdog timer (15kHz oscillator)
• 12-bit resolution A/D converter input: 7ch
- On-chip sample and hold circuit (3ch)
- Programmable gain amplifier (3ch + 3ch)
- Support 3 and 1 shunt current sense method
MCU supports H/W of the safe standard of IEC60730.
The development tools of the RX13T Group are
available.
3 Applications
• Vacuum cleaners, Fans, Pumps, and Robotics
• Power Tools and Garden Tools
1. Please refer to not only this datasheet but also “RAJ306101 User’s Manual: Hardware (R18UZ0081EJ)” to understand this IC.
2. About detail specifications of RX13T, please see “RX13T Group User’s Manual: Hardware (R01UH0822EJ)”.
3. This product has some restrictions on function.
Please check them on “CHAPTER2 MCU: RX13T” in “RAJ306101 User’s Manual: Hardware (R18UZ0081EJ)”.
4. About the electrical characteristics of RX13T, please substitute AVCC0/VCC condition to 3.135V<=AVCC0/VCC<=5.25V.
R18DS0038EJ0100 Rev.1.00
Oct 5, 2023
Page 1 of 67
5秒后页面跳转
AO3401场效应管参数、引脚图、应用原理图
BT131可控硅参数及引脚图、工作原理详解
74LS32芯片参数、引脚图及功能真值表
全球首块英伟达H200交付 黄仁勋“送货上门”
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
