NC33395

The NC33395 simplifies the design of high-power BLDC motor control design by  combining the gate drive, charge pump, current sense, and protection circuitry  necessary to drive a three-phase bridge configuration of six N-channel power  MOSFETs. Mode logic of NC33395 is incorporated to route a pulse width modulation (PWM)  signal to either the low-side MOSFETs or high-side MOSFETs of the bridge, or  to provide complementary PWM outputs to both the low- and high-sides of the  bridge.

Detection and drive circuitry are also incorporated to control a reverse battery  protection high-side MOSFET switch. PWM frequencies up to 28kHz are  possible. Built-in protection circuitry prevents damage to the MOSFET bridge as  well as the drive IC and includes overvoltage shutdown, overtemperature  shutdown, overcurrent shutdown, and undervoltage shutdown. The NC33395 device is parametrically specified over an ambient temperature range of  -40 T_A 125 and 5.5V  V_IGN   24V supply.