MICROCHIP MCP8025A-115E/MP

The MCP8025A/6 devices are three-phase brushless DC (BLDC) power modules containing three integrated half-bridge drivers capable of driving three pairs of external NMOS/NMOS transistors. The three half-bridge drivers deliver 0.5A peak output current at 12V for driving high-side and low-side NMOS MOSFETs. The drivers feature shoot-through, overcurrent, and short-circuit protection. A sleep mode has been added to achieve a typical "key-off" quiescent current of 5μA. The MCP8025A device integrates a comparator, a buck regulator, two LDO regulators, power supply monitoring comparators, an over-temperature sensor, a LIN transceiver, a zero-crossing detector, a neutral point emulator, and an op-amp for motor current monitoring. A phase comparator and multiplexer enable hardware commutation detection. The neutral point emulator allows commutation detection without a neutral tap on the motor. The buck converter delivers 750mW to power a companion microcontroller. The buck regulator can be disabled if not used. On-board 5V and 12V low dropout (LDO) regulators supply 30mA of current. The MCP8026 device replaces the LIN transceiver, neutral point emulator, and zero-crossing detector found in the MCP8025A with two level shifters and two additional op-amps. The MCP8025A/6 operates over a temperature range of -40°C to +150°C. Package options include a 40-pin 5x5 QFN with exposed pad (EP) and a 48-pin 7x7 TQFP.

• Quiescent Current:
  • Sleep Mode: 5μA typical
  • Standby Mode: < 200μA
• LIN Transceiver Interface (MCP8025A):
  • Compliant with LIN Bus Specifications 1.3, 2.2 and SAE J2602
  • Baud rates up to 20Kbaud
  • Internal pull-up resistor and diode
  • Short-to-ground protection
  • Loss-of-ground protection
  • Automatic thermal shutdown
  • LIN bus dominant timeout
• Three half-bridge drivers configured for external high-side NMOS and low-side NMOS MOSFETs:
  • Independent input control for high-side NMOS and low-side NMOS MOSFETs
  • 0.5A peak output current at 12V
  • Shoot-through protection
  • Overcurrent and short-circuit protection
• Adjustable output buck regulator (750mW)
• Fixed output linear regulators:
  • 5V at 30mA
  • 12V at 30mA
• Op-amps:
  • One in MCP8025A
  • Three in MCP8026
• Overcurrent comparator with DAC reference
• Phase comparator with multiplexer (MCP8025A)
• Neutral point emulator (MCP8025A)
• Level shifter (MCP8026)
• Input voltage range: 6V to 40V
• Operating voltage range:
  • 6V to 19V (MCP8025A)
  • 6V to 28V (MCP8026)
• Buck regulator UVLO: 4V
• UVLO: 5.5V (except buck)
• OVLO:
  • 20V (MCP8025A)
  • 32V (MCP8026)
• Transient (100ms) voltage tolerance: 48V
• Extended temperature range (TA): -40 to +150°C
• Thermal shutdown

• Industrial fuel, water, and ventilation motors
• Home appliances
• Permanent Magnet Synchronous Motor (PMSM) control
• RC aircraft, boats, and vehicles