link to page 6 link to page 6 DATA SHEETShare Feedback Your Opinion Matters www.onsemi.com Closed Loop Brushless MARKINGDIAGRAMS Motor Adapter PDIP-8 MC33039P P SUFFIX AWL MC33039, NCV33039 CASE 626 YYWWG 1 The MC33039 is a high performance closed-loop speed control 1 adapter specifically designed for use in brushless DC motor control systems. Implementation will allow precise speed regulation without SOIC-8 33039 the need for a magnetic or optical tachometer. This device contains D SUFFIX ALYW three input buffers each with hysteresis for noise immunity, three CASE 751 G digital edge detectors, a programmable monostable, and an internal 1 1 shunt regulator. Also included is an inverter output for use in systems that require conversion of sensor phasing. Although this device is A = Assembly Location primarily intended for use with the MC33035 brushless motor WL, L = Wafer Lot controller, it can be used cost effectively in many other closed-loop YY, Y = Year WW, W = Work Week speed control applications. G or G = Pb-Free Package Features Digital Detection of Each Input Transition for Improved Low Speed PIN CONNECTIONS Motor Operation TTL Compatible Inputs With Hysteresis f 8 C 1 VCC Operation Down to 5.5 V for Direct Powering from MC33035 f 2 7 GND B Reference Inputs f 3 6 R Internal Shunt Regulator Allows Operation from a Non-Regulated A T/CT Voltage Source f 4 5 f A out Inverter Output for Easy Conversion between 60/300 and (Top View) 120/240 Sensor Phasing Conventions Pb-Free Packages are Available ORDERING INFORMATION See detailed ordering and shipping information on page 6 VCC of this data sheet. f NOTE: Some of the devices on this data sheet have been A DISCONTINUED . Please refer to the table on page 6. 4 8 RT 6 + 8.25 V + C + T R 20 k 3 + 5 f f A 2R - out Delay 15 k To Rotor 2 Position fB Sensors S Q Delay R + 1 + - fC 0.3 V Delay 7 GND Representative Block Diagram Semiconductor Components Industries, LLC, 2012 1 Publication Order Number: July, 2025 − Rev. 7MC33039/D