OB6615A is a highly integrated, high-performance, low-cost brushless DC motor (BLDC) and permanent magnet synchronous motor (PMSM) control chip, which only needs a small number of peripheral components to build a complete BLDC/PMSM control circuit. OB6615A integrates a high-performance MCU, a 3-phase full-bridge driver, and a high-precision 5V regulated power supply. The OB6615A motor control circuits are flexible, smaller and less costly.

OB6615A Support the development of control programs, integrate 6 channels of PWM and drive current sampling, and provide 7 external GPIOs, which can be multiplexed as analog-to-digital sampling, 3-channel digital comparators and other interfaces; Meets most motor applications.

OB6615A provides complete chip protection, including under-voltage protection and over-voltage protection of the chip working power supply, under-voltage protection of the power supply of the high-voltage driver, over-temperature protection, and built-in dead zone of the drive circuit.

Apply

· Model airplane ESC

· BLDC/PMSM variable frequency drives

characteristic

High-performance 1T-8bit MCU

· Built-in 22.1184MHz RC oscillator, support frequency division

· 6-channel 14-bit PWM

· 3-channel comparator

· 16kB Flash,1kB+256Byte SRAM

· 7 external GPIOs

Three-phase full-bridge driver

· Three bootstrap high-side drivers

· Three low-side drivers

· Delay matching with the bridge arm drive

· Built-in dead zone

· Built-in bridge arm pass-through logic

· Built-in working power supply under-voltage protection and over-voltage protection; High-side driver power supply undervoltage protection

LDO

· The output voltage accuracy is 5V

· The output current capability reaches 100mA

· Built-in short-circuit protection and over-temperature protection