Description:

The GD30DRE231x device integrates a 32-bitCortex®-M23 core MCU and a three-phase gatedriver. The device supports multiple applications,such as motors, electronic bikes, power tools, etc.The device provides up to 64 KB on-chip flashmemory and up to 8 KB SRAM memory. Anextensive range of enhanced I/O and peripheralsconnected to two APB buses. The devices offerone 12-bit ADC, a comparator, up to four general16-bit timers, a PWM advanced timer, as well asstandard communication interfaces: SPI, I2C,USART, I2S. 

The GD30DRE231x integrates three individually controllable half bridge drivers, to drive a 3-phase BLDCmotor or other inductive loads. Each driver is composedof two NMOSFETs which support up to 3A source andsink current. The GD30DRE231x can operate with asingle power supply ranging from 4.5V to 30V. Aregulated Bootstrap circuit is integrated in the device tosupply the high side gate drive currents. Dead time andautomatic handshaking is applied to prevent the highside and low side NMOSFETs from shoot through whenswitching. Each half bridge has an optional terminalwhich allows external current sensing. The IC has a LDOfor both internal circuit and external output up to 20mA.A general purpose comparator is also integrated in thedevice.Multiple internal protection features are implemented toprevent the IC and system from malfunction damage.The protection includes supply undervoltage lockout,over temperature. All the protection features arereported through nFAULT pin.The versatile features of the IC allow for it to be used ina broad range of applications, such as BLDC motors,brushed DC motors, etc. 

Features:

 System core– Integrated 32-bit low power consumptionARM Cortex-M23– Integrated nested vectored interruptcontroller– Up to 72 MHz operation frequency– Single-period multiplier

 Memory map– Up to 64 Kbytes of flash memory with erase/program protection and read protection– Up to 8 Kbytes of SRAM with hardwareparity checking– Up to 3 Kbytes information block for the bootloader– 16 bytes option bytes block for userapplication requirements

 Clock control– Internal 8MHz/28MHz/40K RC oscillator– A high-speed crystal oscillator (HXTAL)– A low-speed crystal oscillator (LXTAL)– A Phase Lock Loop 8-bit

 Power and reset– Three power domains: VBAK, VDD / VDDAand 1.2V power domains– Three power saving modes: sleep, deepsleep and standby modes– Low voltage detector– Reset as power on and power down

 Hardware CRC calculation by 7/8/16/32bitCRC code.

 Up to 18 high-speed IO and support forexternal interrupt / event controller

 DMA of 5 channels and each channel areconfigurable

 Rail-to-rail low-power comparator withmultiple configurable

 Free watchdog timer with IRC 40KHz andwindow watchdog timer

 Infrared ray port for infrared ray remote control

 Serial wire debug and trace functions.

 Real-time clock include data and year

 12-bit successive approximation ADC

 8 external analog inputs, 1 channel for internaltemperature sensor, 1 channel for internalreference voltage

 Start conversion by software/hardware trigger

 Module supply requirements: 2.4V to 3.6V

 Dual clock domain architecture

 Maximum 2MHz conversion rate

 Timer– Multiple output compared, input capture, PWMmode or single pulse mode channels– Hall sensor function and Quadrature decoder– Multiple counter modes or up counter modes– Break input– Channel output complementary PWM withprogram dead time– Timer master-slave management

 Communication interfaces– I2C interfaces with a frequency of up to 1MHzMHz– SPI interfaces support 4 to 16 bits data size– I2S interfaces with a frequency of up to 192KHz– USRAT with operating frequency up to 9 MB/s

 Motor driver– 4.5-30V Supply Voltage– Triple Half Bridge to Drive BLDC or Brushed DCMotor– High Drive Currents up to 3A– Independent Half Bridge Control up to 200 kHz– Low On Resistance Built in MOSFET– Built in LDO of 5V, support up to 20mA load– Over Temperature shutdown– Supply undervoltage lockout 

Application:

 3-Phase BLDC Motors

 Brushed Motor for Power Tools

 Industrial Automation