MCP8024 Three-Phase Brushless DC Companion Device Provides All Power, Sensing and Protection Functions Needed to Implement a Robust, Highly Efficient Solution
Microchip Technology Inc. announced a new three-phase BLDC motor gate driver with power module, the MCP8024. This new device includes functions that power dsPIC Digital Signal Controllers (DSCs) and PIC microcontrollers (MCUs) with capabilities to drive six N-channel MOSFETs. Customers can implement improved performance and high robustness, providing increased efficiency and lowering system cost while reducing time to market.
The MCP8024 operates across a wide voltage range of 6V to 28V and can withstand transient voltage up to 48V. The device provides high-integration analog such as three current-sensing operational amplifiers, an over-current comparator, MOSFET drivers and a bidirectional communication interface for a complete motor system design. The configurable driver dead-time management, driver blanking-time control, and Over-Current Limit (OCL) for external MOSFETs offer a significant increase in flexibility. The adjustable step-down DC-to-DC converter powers a broad range of microcontrollers, with the efficiency benefits of a switch-mode power supply. Additionally, the wide operating temperature range from -40°C to +150°C (H-temp) allows the MCP8024 to be utilized in harsh environments, such as automotive under-hood applications.
Features:
- Three Half-bridge Drivers Configured to Drive External High-Side NMOS and Low-Side NMOS MOSFETs:
- Independent input control for high-side NMOS and low-side NMOS MOSFETs
- Peak output current: 0.5A @ 12V
- Shoot-through protection
- Overcurrent and short circuit protection
- Adjustable Output Buck Regulator (750 mW)
- Fixed Output Linear Regulators:
- 5V @ 20 mA
- 12V @ 20 mA
- Internal Bandgap Reference
- Three Operational Amplifiers for Motor Phase Current Monitoring and Position Detection
- Overcurrent Comparator
- Two Level Translators
- Input Voltage Range: 6 - 40V
- Operational Voltage Range: 6 - 28V
- Undervoltage Lockout (UVLO): 6V
- Overvoltage Lockout (OVLO): 28V
- Transient (100 ms) Voltage Tolerance: 48V
- Extended Temperature Range: TA -40 to +150°C
- Thermal Shutdown
The MCP8024 is available in thermally enhanced 40-pin QFN 5mm x 5mm and 48-pin TQFP 7mm x 7 mm packages. The MCP8024 is well suited for a broad range of applications in the automotive market, such as HVAC blowers and pumps, and the industrial market, including fans, motion control and robotics, among others.
Development Support
The MCP8024 is supported by Microchip’s MCP8024 TQFP BLDC Motor Driver Evaluation Board (Part # ADM00557, $99.00), which is expected to be available on December 20.
Pricing & Availability
The MCP8024 is available now for sampling and volume production in 40-pin QFN 5mm x 5mm and 48-pin TQFP 7mm x 7mm packages, for $2.61 each, in 10,000-unit quantities.
