TDA5144AT Philips Semiconductors, TDA5144AT Datasheet
TDA5144AT
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TDA5144AT Summary of contents
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... DATA SHEET TDA5144 Brushless DC motor drive circuit Product specification Supersedes data of March 1992 File under Integrated Circuits, IC11 Philips Semiconductors INTEGRATED CIRCUITS June 1994 ...
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... An unstabilized supply can be used +AMP IN = AMP all outputs I VMOT P ORDERING INFORMATION TYPE NUMBER TDA5144AT TDA5144T June 1994 APPLICATIONS General purpose spindle driver (e.g. for hard disk) Laser beam printer. GENERAL DESCRIPTION The TDA5144 is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position ...
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... Philips Semiconductors Brushless DC motor drive circuit BLOCK DIAGRAM June 1994 Fig.1 Block diagram (SOT163-1; SO20L). 3 Product specification TDA5144 ...
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... Philips Semiconductors Brushless DC motor drive circuit PINNING PIN SYMBOL SO20 SO28 MOT1 1 1 and 2 TEST MOT2 4 5 and 6 n.c. 7 VMOT 5 8 and 9 GND3 GND2 CAP- CAP- CAP- CAP- +AMP AMP AMP OUT 16 20 n.c. 21 and 22 not connected MOT3 17 23 and 24 driver output 3 n ...
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... Philips Semiconductors Brushless DC motor drive circuit Fig.2 Pin configuration (SOT163-1; SO20L). FUNCTIONAL DESCRIPTION The TDA5144 offers a sensorless three phase motor drive function unique in its combination of sensorless motor drive and full-wave drive. The TDA5144 offers protected outputs capable of handling high currents and can be used with star or delta connected motors ...
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... Philips Semiconductors Brushless DC motor drive circuit LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER V supply voltage P V input voltage; all pins except I VMOT V VMOT input voltage VMOT V output voltage O AMP OUT and FG MOT0, MOT1, MOT2 and MOT3 ...
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... Philips Semiconductors Brushless DC motor drive circuit CHARACTERISTICS unless otherwise specified. P amb SYMBOL PARAMETER Supply V supply voltage P I supply current P V input voltage to the output driver VMOT stages Thermal protection T local temperature at temperature SD sensor causing shut-down T reduction in temperature before switch-on MOT0 ...
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... Philips Semiconductors Brushless DC motor drive circuit SYMBOL PARAMETER AMP OUT (open collector) I output sink current sink V saturation voltage sat V output voltage O SR slew rate G transfer gain tr FG (open collector) V LOW level output voltage OL V maximum HIGH level output OH(max) voltage t HIGH-to-LOW transition time ...
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... Philips Semiconductors Brushless DC motor drive circuit Notes to the characteristics 1. An unstabilized supply can be used all other inputs all outputs at V VMOT mA Switching levels with respect to MOT1, MOT2 and MOT3. 4. Drivers are in the high-impedance OFF-state. 5. The outputs are short-circuit protected by limiting the current and the IC temperature ...
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... Philips Semiconductors Brushless DC motor drive circuit Introduction (see Fig.8) Full-wave driving of a three phase motor requires three push-pull output stages. In each of the six possible states two outputs are active, one sourcing (H) and one sinking (L). The third output presents a high impedance (Z) to the ...
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... Philips Semiconductors Brushless DC motor drive circuit The oscillation of the motor is given by ---------------------------------- - osc ---------------------- - J where torque constant (N.m/ current ( number of magnetic pole-pairs inertia J (kg Example kg and I = 0.5 A; this gives Hz. If the damping is high osc then a start frequency can be chosen 500 ms, thus C = 0.5/2 = 0.25 F (choose 220 nF). ...
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... Philips Semiconductors Brushless DC motor drive circuit Fig.8 Typical application of the TDA5144 as a scanner driver, with use of OTA. June 1994 Product specification TDA5144 ...
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... Philips Semiconductors Brushless DC motor drive circuit Fig.9 CAP-CD and CAP-DC typical voltage waveforms in normal running mode. T (CAP-TI) HE TIMING CAPACITOR Capacitor CAP-TI is used for timing the successive steps within one commutation period; these steps include some internal delays. The most important function is the watchdog time in which the motor EMF has to recover from a negative diode-pulse back to a positive EMF voltage (or vice versa) ...
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... Philips Semiconductors Brushless DC motor drive circuit If the chosen value of CAP-TI is too small oscillations can occur in certain positions of a blocked rotor. If the chosen value is too large, then it is possible that the motor may run in the reverse direction (synchronously with little torque). Fig.10 Typical CAP-TI and V ...
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... Philips Semiconductors Brushless DC motor drive circuit M C OTOR ONTROL DC motors can be controlled in an analog manner using the OTA. For the analog control an external transistor is required. The OTA can supply the base current for this transistor and act as a control amplifier (see Fig.8). ...
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... Philips Semiconductors Brushless DC motor drive circuit PACKAGE OUTLINES handbook, full pagewidth S 0.9 (4x) 0.4 20 pin 1 index 1 Dimensions in mm. Fig.11 Plastic small outline package; 20 leads; large body (SOT163-1; SO20L). June 1994 13.0 12.6 0 0.49 0.25 M 0.36 1.27 (20x) 16 Product specification 7.6 7.4 10 ...
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... Philips Semiconductors Brushless DC motor drive circuit handbook, full pagewidth S 0.9 (4x) 0.4 28 pin 1 index 1 Dimensions in mm. Fig.12 Plastic small outline package; 28 leads; large body (SOT136-1; SO28L). June 1994 18.1 17.7 0 0.49 0.25 M 0.36 1.27 (28x) 17 Product specification TDA5144 7.6 7.4 10.65 10 ...
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... Philips Semiconductors Brushless DC motor drive circuit SOLDERING Plastic small-outline packages B Y WAVE During placement and before soldering, the component must be fixed with a droplet of adhesive. After curing the adhesive, the component can be soldered. The adhesive can be applied by screen printing, pin transfer or syringe dispensing ...
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... Philips Semiconductors Brushless DC motor drive circuit June 1994 NOTES 19 Product specification TDA5144 ...
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... Bangkok 10260, THAILAND, Tel. (662)398-0141, Fax. (662)398-3319. Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL, Tel. (0 212)279 2770, Fax. (0212)269 3094 United Kingdom: Philips Semiconductors Limited, P.O. Box 65, Philips House, Torrington Place, LONDON, WC1E 7HD, Tel. (071)436 41 44, Fax. (071)323 03 42 United States: INTEGRATED CIRCUITS: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel ...