onsemi MC33039
The MC33039 is a high performance closed−loop speed control adapter specifically designed for use in brushless DC motor control systems. This device contains three input buffers each with hysteresis for noise immunity, three digital edge detectors, a programmable monostable, and an internal shunt regulator. Typical Three Phase, Six Step Motor Application OPERATING DESCRIPTION The MC33039 provides an economical method of implementing closed−loop speed control of brushless DC motors by eliminating the need for a magnetic or optical tachometer.| Part No. | MC33039 |
|---|---|
| Datasheet | MC33039 Download |
| Manufacturer |  onsemi |
| Description | Closed Loop Brushless Motor Adapter |
| Buy | Stock & Price |
FEATURES
● Digital Detection of Each Input Transition for Improved Low Speed Motor Operation● TTL Compatible Inputs With Hysteresis
● Operation Down to 5.5 V for Direct Powering from MC33035 Reference
● Internal Shunt Regulator Allows Operation from a Non−Regulated Voltage Source
● Inverter Output for Easy Conversion between 60°/300° and 120°/240° Sensor Phasing Conventions
● Pb−Free Packages are Available MARKING DIAGRAMS PDIP−8 MC33039P P SUFFIX AWL CASE 626 YYWWG 11 SOIC−8 33039 D SUFFIX ALYW CASE 751 G 11 A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G or G = Pb−Free Package PIN CONNECTIONS φA 4 3 φA + 20 k To Rotor Position Sensors 2 φB 1 φC Delay Delay Delay VCC 8 + 8.25 V SQ R RT 6 + CT R + 2R - 5 fout 15 k + +- 0.3 V Inputs φC 1 φB 2 φA 3 φA 4 8 VCC 7 GND 6 RT/CT 5 fout (Top View) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. 7 GND Representative Block Diagram © Semiconductor Components Industries, LLC, 2012 June, 2012 − Rev.
