MICROCHIP MCP8025AT-115E/PT

The MCP8025A/6 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 MCP8025A 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 Low-Dropout (LDO) voltage regulators are capable of delivering 30 mA of current. The MCP8026 device replaces the LIN transceiver, neutral simulator and zero-crossing detector in MCP8025A with two level shifters, and two additional op amps. The MCP8025A/6 operation is specified over a temperature range of -40°C to +150°C.

• Quiescent Current: - Sleep mode: 5 μA Typical - Standby mode: <200 μA
• LIN Transceiver Interface (MCP8025A): - Compliant with LIN Bus Specifications 1.3, 2.2 and SAE J2602 - Supports baud rates up to 20 Kbaud - Internal pull-up resistor and diode - Protected against ground shorts - Protected against loss of ground - Automatic thermal shutdown - LIN bus dominant time-out
• 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 at 12V - Shoot-through protection - Overcurrent and short-circuit protection
• Adjustable Output Buck Regulator (750 mW)
• Fixed Output Linear Regulators: - 5V at 30 mA - 12V at 30 mA
• Operational Amplifiers: - One in MCP8025A - Three in MCP8026
• Overcurrent Comparator with DAC Reference
• Phase Comparator with Multiplexer (MCP8025A)
• Neutral Simulator (MCP8025A)
• Level Translators (MCP8026)
• Input Voltage Range: 6V to 40V
• Operational Voltage Range: - 6V to 19V (MCP8025A) - 6V to 28V (MCP8026)
• Buck Regulator Undervoltage Lockout: 4V
• Undervoltage Lockout (UVLO): 5.5V (Except Buck)
• Overvoltage Lockout (OVLO): - 20V (MCP8025A) - 32V (MCP8026)
• Transient (100 ms) Voltage Tolerance: 48V
• Extended Temperature Range (TA): -40 to +150°C
• Thermal Shutdown

• Industrial Fuel, Water, Ventilation Motors
• Home Appliances
• Permanent Magnet Synchronous Motor (PMSM) Control
• Hobby Aircraft, Boats, Vehicles