Microcontrollers(650)

Smart Home Audio(325)

KM1M7BF Inverter Control Series

The KM1M7BF series, ideal for controlling power electronics, is a 32-bit Flash microcontroller featuring both high processing power and low power consumption, and incorporating the Arm® Cortex®-M7.

The device is equipped with a high-function PWM, high-speed, high-precision AD converter, and feedback control assist function, ideal for inverter control of brushless DC motors, and contributes to power electronics products that require high efficiency, low heat generation, and miniaturization.

Block Diagram

KM1M7BSeries-1-EN

Outline Specifications

•Built-in Arm® Cortex ® -M7 core

  •12-bit A/D converter

  Single- and double-precision FPUs

 

  Minimum conversion time 0.5μs (2.0Msps)

•Clock frequency: 160 MHz

    3 units, 32 channels

•Internal memory

 

•Variable Gain Amplifier (VGA)

  Instruction Flash ROM: 512 KB

 

  5 units

  Flash ROM for data: 64 KB

  •Comparator: 5 units

  Instruction RAM: 64 KB

 

  Window/2 level/1 levell switchable

  RAM for data: 64 KB

  •Functional Safety

•DMA Controller: 2 units / 16 channels

    ROM/RAM ECC function

•Timer

 

  Memory data protection function

  General-purpose 16-bit timer: 20 channels

 

  Register access protect function

  PWM for power control: 12 units / 24 channels

 

  Clock monitor function

•Communication

 

  Window type WDT function

  Synchronous/IIC: 1 channel

 

  CRC operation function

  Synchronous/UART: 2 channels

 

  A/D converter Diagnostic function

  Synchronous/UART/LIN: 1 channel

 

  Supply voltage detection function

  Synchronous/UART/SPI: 3 channels

 

  Power-on reset function

  Synchronous/UART/data share: 1 channel

 

•Power supply voltage: 5V single power supply

  SM-Bus: 1 channel

 

•Operating temperature: Tc= -40 to 110°C

Reference Board

Solution

Target

Input

Power

Structure

Deliverables

Status

Low voltage motor

EVA board

KM1M7BF-EN1 

Air purifiers

Power tools

One axis slider

134W

BLDC motor x 1

Hard Ref

Soft IP

Available

High voltage motor

EVA board

KM1M7BF-EN2 

Air conditioner

(Compressor and Fan)

Washing machine

Refrigerator

2kW

BLDC motor x 2

Single phase PFC

Hard Ref

Soft IP

Available

3-phase interleaved PFC

EVA board

KM1M7BF-EN3 

Air conditioner

Heat Pump

3.5kW

BLDC motor x 2

3-phase PFC

Hard Ref

Soft IP

Available