3-Phase Motor Driver IC for Automotive Systems BD16805FV-M

3-Phase Motor Driver IC for Automotive Systems BD16805FV-M

Overview | Highlight 1 | Highlight 2 | Absolute Maximum Ratings | Application Diagram | Applications

Overview

The BD16805FV-M is a 3-phase motor driver designed for AC blower motors, cooling fans for batteries and car seats, and more. 180° energization PWM drive minimizes motor drive noise, while advance angle control is built in for high-efficiency drive. In addition, the lock protection time, overcurrent protection limit, PWM frequency, and startup time can be adjusted externally, ensuring compatibility with various motor control methods.

Datasheet

Package Diagram
BU8332KV-M

Highlight 1: Sine wave drive system (180° energization) adopted for significantly reduced noise

With conventional square-wave drive (120° energization), motor drive noise is generated during sudden changes in motor output current. In contrast, ROHM's sine-wave drive method (180° energization) ensures that the motor output current is a sine wave, ensuring silent drive operation.

 Sine wave drive system (180° energization) adopted for significantly reduced noise

Highlight 2: Advance angle control function ensures low power consumption

Torque can be maximized by matching the phase of the induced voltage and output current of the motor. In addition, standby current consumption is 10uA max., contributing to lower system power consumption.

Advance angle control function ensures low power consumption

Absolute Maximum Ratings (Ta=25°C)

Parameter Symbol Rating Units
Supply Voltage VCC 60 V
Input Voltage 1 STB 7 V
Input Voltage 2 (See Note 1) VREG+0.7 V
Permissible Loss (see Note 2) Pd 1125 mW
Operating Temperature Range Topr -40~+110
Storage Temperature Range Tstg -55~+150
Note 1: PWM, FR, MODESEL, VDEG, FGSW, VTH, MCT2 pins
Note 2: Derated at 9.0mW/°C. Mounted on a 70mmx70mmx1.6mm glass epoxy board.

Application Diagram

Application Diagram

Applications

AC blower motors, battery/car seat cooling fan motors, and other applications utilizing 3-phase motors.

ROHM utilizes that latest proprietary technologies to develop ICs and other semiconductor products optimized to customer needs.

 

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