MCP8025T-115E/MP

The MCP8025 devices are 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 MCP8025 device integrates a comparator, a buck voltage regulator, two LDO regulators, power monitoring comparators, an over temperature 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 low dropout 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 MCP8025 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
• LIN Transceiver Interface (MCP8025):
  • 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:
  • one in