MCP8026 TQFP BLDC Motor Driver IC Evaluation Board

The MCP8026 devices is a 3-phase brushless DC (BLDC) power modules containing three integrated half-bridge drivers capable of driving three external NMOS/NMOS transistor pairs. The three half-bridge drivers are capable of delivering a peak output current of 0.5A at 12V for driving high-side and low-side NMOS MOSFET transistors. The drivers have shoot-through, overcurrent and short-circuit protection. A Sleep Mode has been added to achieve a typical “key-off” quiescent current of 5 µA. The MCP8026 device integrates a comparator, a buck voltage regulator, two LDO regulators, power monitoring comparators, an overtemperature sensor, a LIN transceiver, a zero-crossing detector, a neutral simulator and an operational amplifier for motor current monitoring. The phase comparator and multiplexer allow for hardware commutation detection. The neutral simulator allows commutation detection without a neutral tap in the motor. The buck converter is capable of delivering 750 mW of power for powering a companion microcontroller. The buck regulator may be disabled if not used. The on-board 5V and 12V lowdropout voltage regulators are capable of delivering 30 mA of current. The MCP8026 replaces the LIN transceiver, neutral simulator and zero-crossing detector in MCP8025 with two level shifters and two additional op amps. The MCP8026 operation is specified over a temperature range of -40°C to +150°C. Package options include 40-lead 5x5 QFN and 48-lead 7x7 TQFP with Exposed Pad (EP).

• AEC-Q100 Grade 0 Qualified
• Quiescent Current:
  • Sleep Mode: 5 µA Typical
  • Standby Mode: < 200 µA
  • Compliant with LIN Bus Specifications 1.3, 2.2, and SAE J2602
  • Supports baud rates up to 20K baud
  • Internal pull-up resistor and diode
  • Protected against ground shorts
  • Protected against loss of ground
  • Automatic thermal shutdown
  • LIN Bus dominant timeout
• 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 @ 30 mA
  • 12V @ 30 mA
• Operational Amplifiers:
  • three in MCP8026
• Overcurrent Comparator with DAC Reference
• Level Translators (MCP8026)
• Input Voltage Range: 6V - 40V
• Operational Voltage Range:
  • 6V - 28V (MCP8026)
• Buck Regulator Undervoltage Lockout: 4.0V
• Undervoltage Lockout (UVLO): 5.5V (except Buck)
• Overvoltage Lockout (OVLO)
  • 32V (MCP8026)
• Transient (100 ms) Voltage Tolerance: 48V
• Extended Temperature Range (TA): -40 to +150°C
• Thermal Shutdown