Datasheet RAA227063 4.5V to 60V 3-Phase Smart Gate Driver The RAA227063 is a smart gate driver IC for 3-phase Features Brushless DC (BLDC) motor applications. It Wide V range: 4.5V to 60V (65V abs max) IN integrates three half-bridge smart gate drivers that are Switching frequency range up to 200kHz capable of driving up to three N-channel MOSFET 3-Phase drive for BLDC application bridges and supports bridge voltages from 4.5V to 60V. Each gate driver supports up to 1A source and Peak 1A/2A source/sink current with 2A sink peak drive current with programmable drive programmable drive strength strength control. Adjustable and adaptive dead-times Supports 8 adjustable levels of drive strength are implemented to ensure robustness and flexibility. through hardware interface and 16 adjustable The active gate holding mechanism prevents a Miller levels of drive strength through SPI interface effect-induced cross-conduction and further Adaptive and adjustable dead time enhances robustness. Fully integrated power supply architecture The device integrates power supplies that power Two VCC LDOs allow for Sleep mode low I Q internal analog and logic circuitry, high-side and 500mA buck-boost switching regulator low-side drivers, and a dedicated supply for powering generates drive voltage (5V to 15V adjustable) external microcontrollers. The device also features a low-power Sleep mode that consumes only 20A to 200mA adjustable output LDO for MCU supplies maximize battery life in portable applications. Flexible configuration The driver control inputs can be configured to either 3-phase HI/LI mode and 3-phase PWM mode 3-phase LI/HI or 3-phase PWM modes. Three Support half-bridge, full-bridge configuration accurate differential amplifiers with adjustable gain Three current sense amplifiers are integrated to support ground-side shunt current Four levels of sense gain setting sensing or low-side r current sensing for each DS(ON) Supports DC offset calibration during power-up bridge. The device can also support sensorless and on-the-fly operation using back EMF in brushless DC motors. Supports both ground-side shunt sense or The device can be configured to use either a low-side MOSFET r sense DS(ON) hardware interface or SPI interface. For hardware Back-EMF sensing for BLDC sensorless operation interface configuration, key driver operating parameters can be set using resistor pin-straps. For Features both hardware interface and SPI interface SPI configuration, all the parameters can be set Extensive fault protection functions (VCC UV, VM/ through the SPI Bus, which allows better monitoring. VBRIDGE UV, charge pump UV, MOSFET VDS OCP, current sense OCP, thermal Extensive protection functions include bridge voltage warning/shutdown, buck-boost current limiting, UV protection, buck-boost OV/UV/OC protection, buck-boost OCP, buck-boost UV/OV) charge pump UV protection, MOSFET drain-to- source voltage OC protection, current sense Supports reverse battery protection by additional overcurrent protection, thermal warning, and external circuitry shutdown. Fault conditions are indicated on a 7mm x 7mm 48 Ld QFN package (0.5mm pitch) dedicated nFAULT pin and in SPI status registers. Applications Power tools, fans, pumps, E-bikes Industrial automation, robotics, drones R16DS0045EU0101 Rev.1.01 Page 1 Nov 29, 2021 2021 Renesas ElectronicsRAA227063 Datasheet R16DS0045EU0101 Rev.1.01 Page 2 Nov 29, 2021 VIN = 4.5V to 60V VCP osc 500mA Buck-boost MCU 1/2 w/ V UVLO, V OV/ IN OUT Charge Pump w/ COMP GHA UV, OCP VCP UVLO HS Level SHA AUXVCC Shifter VDD MCU LDO2 LDO3 FBLDO GLA LS GND VCC LDO1 SPA SGND l EN GHB GPIO l HS a HIA Level SHB H Shifter LIA HIB Core Logic GLB DPWM (or Smart Gate Drive LS LIB Protection GPIO) HIC SPB LIC Control Inputs & IDRV/SDI Configuration Interface AUXVCC GHC HS MODE/SDO SPI Master Level SHC VBRIDGE Shifter CSGAIN/SCLK SHA VDSTH/nSCS SPA GLC LS VCC VDS Shoot- SHB through/OCP SPB Protection DT/IFSEL/BEN AUXVCC SHC SPC SPC SPA nFault Fault Output GPIO SNA SPB CSOA A/D Amplifier stages support flexible configuration to: CSOB/SNS SEL2 SNB/BEPHSEL2 1) Up to 3-phase current sensing (Shunt or rDS(ON)) A/D 2) Up to 2-phase current sensing + BEMF sensing CSOC/BEMFO/SNS SEL1 Internal S/H of sensed signal can be enabled for shunt sense and SPC A/D BEMF sense See the Current Sensing and BEMF Sensing section VREF SNC/BEPHSEL1 VREF VBRIDGE VCC SHA SHB POR VBRIDGEUVLO SHC COMMON EPAD Figure 1. Typical Application Diagram FB VM PGND SW1 SW2 VDRV CPL CPH VBRIDGE