Datasheet For Air-Conditioner Fan Motor 3-Phase Brushless Fan Motor Driver BM6248FS General Description Key Specifications This 3-phase Brushless Fan motor driver IC adopts Output MOSFET Voltage: 600V PrestoMOS as the output transistor, and put in a small Driver Output Current (DC): 1.5A (Max) full molding package with the 180 sinusoidal Driver Output Current (Pulse): 2.5A (Max) commutation controller chip and the high voltage gate Output MOSFET DC On Resistance: 2.7 (Typ) driver chip. The protection circuits for overcurrent, Duty Control Voltage Range: 2.1V to 5.4V overheating, under voltage lock out and the high voltage Phase Control Range: 0 to +40 bootstrap diode with current regulation are built-in. It Maximum Junction Temperature: +150C provides downsizing the built-in PCB of the motor. Package W(Typ) x D(Typ) x H(Max) Features SSOP-A54 36A 2.0mm x 14.1mm x 2.4mm 600V PrestoMOS Built-in Output Current 1.5A Bootstrap operation by floating high side driver (including diode) 180 Sinusoidal Commutation Logic PWM Control (Upper and lower arm switching) Phase control supported from 0 to +40 at 1 intervals Rotational Direction Switch FG signal output with pulse number switch (4 or 12) VREG Output (5V/30mA) Protection circuits provided: CL, OCP, TSD, UVLO, MLP and the external fault input Fault Output (open drain) SSOP-A54 36 Applications Air Conditioners Air Purifiers Water Pumps SSOP-A54 36A Dishwashers Washing Machines Typical Application Circuit VDC GND D1 C5 C6 VCC R1 VSP C7 C13 C1 C8 C2~C4 M R2 C9 HW HV HU C11 R4 R3 R8 FG Q1 C12 R7 DTR Figure 1. Application Circuit Example Product structure : Semiconductor IC This product has no designed protection against radioactive rays www.rohm.com TSZ02201-0P1P0C402200-1-2 2018 ROHM Co., Ltd. All rights reserved. 1/30 TSZ22111 14 001 22.Feb.2019 Rev.002 VREG R6 R5 C10 R12 R11 R10 R9 C14 R13BM6248FS Contents General Description ........................................................................................................................................................................ 1 Features.......................................................................................................................................................................................... 1 Applications .................................................................................................................................................................................... 1 Key Specifications .......................................................................................................................................................................... 1 Package .................................................................................................................................................................................. 1 Typical Application Circuit ............................................................................................................................................................... 1 Contents ......................................................................................................................................................................................... 2 Block Diagram and Pin Configuration ............................................................................................................................................. 3 Pin Description ................................................................................................................................................................................ 3 Description of Blocks ...................................................................................................................................................................... 4 Controller Outputs and Operation Mode Summary ......................................................................................................................... 9 Absolute Maximum Ratings .......................................................................................................................................................... 10 Thermal Resistance ..................................................................................................................................................................... 10 Recommended Operating Conditions ........................................................................................................................................... 11 Electrical Characteristics (Driver part) .......................................................................................................................................... 11 Electrical Characteristics (Controller part) .................................................................................................................................... 12 Typical Performance Curves (Reference Data) ............................................................................................................................ 13 Timing Chart ................................................................................................................................................................................. 21 Application Example ..................................................................................................................................................................... 23 Parts List ....................................................................................................................................................................................... 23 Dummy Pin Descriptions............................................................................................................................................................... 24 I/O Equivalent Circuits .................................................................................................................................................................. 25 Operational Notes ......................................................................................................................................................................... 26 Ordering Information ..................................................................................................................................................................... 28 Marking Diagrams ......................................................................................................................................................................... 28 Physical Dimension and Packing Information ............................................................................................................................... 29 Revision History ............................................................................................................................................................................ 30 www.rohm.com TSZ02201-0P1P0C402200-1-2 2018 ROHM Co., Ltd. All rights reserved. 2/30 TSZ22111 15 001 22.Feb.2019 Rev.002