TDA7274 ST Microelectronics, TDA7274 Datasheet
TDA7274
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TDA7274 Summary of contents
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... V) LINEARITY IN SPEED ADJUSTMENT HIGH STABILITY VS. TEMPERATURE LOW NUMBER OF EXTERNAL PARTS DESCRIPTION The TDA7274 is a monolithic integrated circuit DC motor speed controller intended for use in mi- crocassettes, radio cassette players and other consumer equipment particulary suitable for low-voltage applications. PIN CONNECTION (top view) ...
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... TDA7274 APPLICATION CIRCUIT SCHEMATIC DIAGRAM 220 1.65V 100mA 2.14V ...
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... 1 100mA 1 200mA 200mA 100mA M Tamb = – 100mA M Tamb = 20 to +60 C TDA7274 Value Unit 6 V 700 mA 1.25 W Value Unit 100 C unless otherwise speci- Min. Typ. Max. Unit 1 0.18 0.20 0. ...
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... TDA7274 Figure 1 : Test Circuit. Figure 2 : Quiescent Current vs. Supply Voltage. 4/10 Figure 3 : Reference Voltage vs. Supply Voltage. ...
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... Figure 4 : Shunt Ratio vs. Supply Voltage. Figure 6 : Shunt Ratio vs. Load Current. Figure 8 : SaturationVoltage vs. Load Current. Figure 5 : Reference Voltage vs. Load Current. Figure 7 : Minimum Supply Voltage (typical) vs. Load Current. Figure 9 : Quiescent Current vs. Ambient Temperature. TDA7274 5/10 ...
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... TDA7274 Figure 10 : Reference Voltage vs. Ambient Temperature. Figure Board and Components layout of the Circuit of fig scale). Figure 13 : Speed Variations vs. Supply Voltage. 6/10 Figure 11 : Application Circuit 3. 1.65V 4 100mA 220 Figure 14 : Speed Variations vs. Motor Current. ...
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... The value calculated so that ref T (max > (max.) The values depend on the type of motor used. C WOW and flutter of the system. C motor spikes. TDA7274 = Motor current at rated speed M = Motor resistance M = Back electromotive force ...
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... TDA7274 Figure Stereo Cassette Miniplayer with Motor Speed Control. 8/10 ...
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... MINIDIP PACKAGE MECHANICAL DATA DIM. MIN 0.51 B 1.15 b 0.356 b1 0.204 3.18 mm TYP. MAX. MIN. 3.32 0.020 1.65 0.045 0.55 0.014 0.304 0.008 10.92 9.75 0.313 2.54 7.62 7.62 6.6 5.08 3.81 0.125 TDA7274 inch TYP. MAX. 0.131 0.065 0.022 0.012 0.430 0.384 0.100 0.300 0.300 0.260 0.200 0.150 9/10 ...
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... TDA7274 Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications men- tioned in this publication are subject to change without notice ...