GD30DR8306KU

Features

 4.5-30V Supply Voltage

 Programmable gate drive current, peak 1A source and 1.2A sink current

 Smart high-side and low-side Slew-Rate Control

 PWM input control up to 200kHz

 2 PWM modes (6x and 3x)

 Inside 5V/2A DC-DC buck controller

 3.3V and 5V digital interface

 Integrated 5V LDO

 Thermally-Enhanced: QFN32 (5x5) 

 Protection Features:

– Dead time insertion

– MOSFET Shoot-Through protection

– Over temperature protection

– Fault diagnostics

– VP and VDD Under Voltage Lock-Out(UVLO)

2. Applications

 3-Phase BLDC and PMSM Motors

 Power Tools

 Robotics and RC Toys

 Industrial Automation

3. General description

The versatile programmable features listed below allow GD30DR8306x to be used in a broad 

range of applications, such as 3-phase BLDC motors, electronic bikes, power tools, and etc.

The GD30DR8306x is a three-phase gate driver IC integrated with an optional DC/DC buck 

controller. The IC includes three half-bridge drivers, each is capable of driving two NMOSFETs 

and supports up to 1.2A source and 1A sink current capability. The drive currents will be adapted 

automatically to the optimized current according to different power MOSFET used in the 

application. A proprietary slew rate control is implemented to reduce the EMI of gate drive. The 

GD30DR8306x can operate with a single power supply ranging from 4.5V to 30V. A regulated 

charge pump supporting 100% duty cycle is integrated in the device to supply the gate drive 

current and the internal LDOs. 

The device inserts fixed dead-time and uses automatic handshaking to prevent the high-side and 

low-side MOSFET from shoot-through when switching.

The optional integrated DC/DC buck controller operates with power supply of 4.5V to 30V and 

the output voltage is 5V. The driver can drive an external NMOSFET up to 2A. 

The versatile programmable features of the IC allow for it to be used in a broad range of 

applications, such as 3-phase BLDC motors, electronic bikes, power tools, and etc.

The GD30DR8306x is available in thermal enhanced package QFN32 with buck controller.