PDF MC33039 Data sheet ( Hoja de datos )

Número de pieza	MC33039
Descripción	CLOSED LOOP BRUSHLESS MOTOR ADAPTER
Fabricantes	Motorola Semiconductors
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No Preview Available ! Closed Loop Brushless Motor Adapter The MC33039 is a high performance closed–loop speed control adapter specifically designed for use in brushless DC motor control systems. Implementation will allow precise speed regulation without the need for a magnetic or optical tachometer. This device contains three input buffers each with hysteresis for noise immunity, three digital edge detectors, a programmable monostable, and an internal shunt regulator. Also included is an inverter output for use in systems that require conversion of sensor phasing. Although this device is primarily intended for use with the MC33035 brushless motor controller, it can be used cost effectively in many other closed–loop speed control applications. • 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 Order this document by MC33039/D MC33039 CLOSED LOOP BRUSHLESS MOTOR ADAPTER SEMICONDUCTOR TECHNICAL DATA 8 1 P SUFFIX PLASTIC PACKAGE CASE 626 8 1 D SUFFIX PLASTIC PACKAGE CASE 751 (SO–8) 3 φA + 20 k To Rotor Position Sensors 2 φB 1 φC Representative Block Diagram φA 4 VCC 8 + 8.25 V Delay RT 6 + CT R + 2R – 5 fout 15 k Delay Delay SQ R + +– 0.3 V 7 Gnd PIN CONNECTIONS Inputs φC 1 φB 2 φA 3 φA 4 8 VCC 7 Gnd 6 RT/CT 5 fout (Top View) ORDERING INFORMATION Device Operating Temperature Range Package MC33039D TA = – 40° to +85°C MC33039P SO–8 Plastic DIP MOTOROLA ANALOG IC DEVICE DATA © Motorola, Inc. 1996 Rev 0 1 1 page Figure 3. fout, Pulse Width versus Timing Resistor 100 VCC = 6.25 V TA = 25°C 10 CT = 220 nF 1.0 CT = 22 nF 0.1 0.01 2.0 CT = 2.2 nF 20 RT , TIMING RESISTOR (kΩ) MC33039 + 1.6 + 0.8 Figure 4. fout, Pulse Width Change versus Temperature VCC = 6.25 V RT = 10 k CT = 22 nF 0 – 0.8 – 1.6 200 – 55 – 25 0 + 25 + 50 + 75 + 100 + 125 TA , AMBIENT TEMPERATURE (°C) Figure 5. fout, Pulse Width Change versus Supply Voltage + 4.0 TA = 25°C + 2.0 0 – 2.0 – 4.0 4.5 5.5 6.5 7.5 VCC , SUPPLY VOLTAGE (V) 8.5 Figure 6. Supply Current versus Supply Voltage 20 Pins 1, 2, 3 Connected 16 together 12 8.0 4.0 TA = – 40°C 0 TA = 125°C TA = 25°C 0 2.0 4.0 6.0 8.0 VCC , SUPPLY VOLTAGE (V) 10 0 – 2.0 – 4.0 + 0.4 + 0.2 0 0 Figure 7. fout, Saturation versus Load Current VCC Source Saturation (Load to Ground) VCC = 6.25 V TA = 25°C Sink Saturation (Load to VCC) Gnd 4.0 8.0 12 IO , OUTPUT LOAD CURRENT (mA) 16 + 16 + 8.0 0 – 8.0 – 16 – 55 Figure 8. fout, Saturation Change versus Temperature + 0.6 VCC = 6.25 V IO = 5.0 mA + 0.4 ∆ Sink Saturation (Load to VCC) ∆ Source Saturation (Load to Ground) + 0.2 0 – 0.2 – 25 0 + 25 + 50 + 75 + 100 + 125 TA , AMBIENT TEMPERATURE (°C) MOTOROLA ANALOG IC DEVICE DATA 5 5 Page

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