MLX90805 ETC [List of Unclassifed Manufacturers], MLX90805 Datasheet
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MLX90805
Related parts for MLX90805
MLX90805 Summary of contents
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... Description The MLX90805 is a power control IC ideally suited for control of any resistive or inductive load regulated by a triac. The chip was designed primarily for starting and speed control of AC motors, but will work equally well with any Inductive or resistive load such as and reset Incandescent lights ...
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... This block detects the moments when mains voltage crosses zero level. An accurate detection allows good synchronization, so firing pulses driving the triac can be generated at the right moment. MLX90805 Intelligent Triac Controller Intelligent Triac Controller Logic This block performs all control functions to realize time synchronization, smooth soft start, and proper triac firing, so that motor runs at a defined speed ...
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... High level threshold Vdporl Low level threshold Vdphyst Hysteresis Symbol Description Vaporh High level threshold Vaporl Low level threshold Vaphyst Hysteresis MLX90805 Intelligent Triac Controller MLX902xx Name of Sensor Intelligent Triac Controller Min Typ Max Unit 0 85 °C 150 °C 110 °C/ ...
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... External resistor Triac (Ignition) Driver This driver operates as a current generator to fire the triac ON. Symbol Description ITRG Triac gate current ADC Symbol Description Resolution VREF Reference voltage MLX90805 Intelligent Triac Controller Intelligent Triac Controller Min Typ Max Unit VDDA V +0.5 VDDA V -0.5 VDDA V -1 ...
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... If the phase angle, selected by the potentiome- ter, is not the maximum phase angle then the soft start run-up time is decreased proportionally. MLX90805 Intelligent Triac Controller MLX902xx Name of Sensor Intelligent Triac Controller Firing The soft start circuit generates a predefined set of values for the ignition angle IGN ...
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... All I/O pins must withstand the normalized ESD pulses up to 2kV (100pF / 1 The pins will be stressed in both polarities, with respect to the combi- nation of all supply pins. MLX90805 Intelligent Triac Controller Intelligent Triac Controller Options The following options are available: Firing angle definition The firing angles, and corresponding motor speeds, can be defined in ROMi[9:0] ...
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... MLX902xx Name of Sensor MLX90805 Intelligent Triac Controller Intelligent Triac Controller Enable Retriggering With bit RTRIG set to 1, triac retriggering is enabled. The retriggering circuit checks whether the triac is ON, if not additional firing pulses are generated every 20us (with respect to the end of the previous firing pulse) until firing of the triac ...
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... This application is defined by fixing V(SET) = Vref. This means, after soft start generation, always the maximum speed (corresponding to the highest ROM address) is selected. MLX90805 Intelligent Triac Controller Intelligent Triac Controller Cf Vdda Z C 90805 ...
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... The voltage at SET is transferred bit value to address a ROM table in which the different phase angles are defined with a 10 bit resolution. The 2-wire mode is selected by connecting VFB to VREF (eventually via a resistor). MLX90805 Intelligent Triac Controller MLX902xx Name of Sensor Intelligent Triac Controller Vdda Z C ...
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... The voltage at SET is transferred bit value to address a ROM table in which the different phase angles are defined with a 10 bit resolution. The 3-wire mode is selected by connecting VFB to VSS (eventually via a resistor). MLX90805 Intelligent Triac Controller Cf Vdda Z C 90805 Vss ...
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... The plots are a measurement of motor current (signal A1) and speed (signal A2) during startup for a particular motor. In the first plot we have a soft start of approx. 3 seconds. In the second plot we directly connect the same motor to the line voltage: MLX902xx Name of Sensor MLX90805 Intelligent Triac Controller Intelligent Triac Controller Rev Y.X Page 11 22/Aug/98 MLX90805 Rev 1 ...
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... MLX90805 Intelligent Triac Controller Intelligent Triac Controller Notes: A 1-All measurements 2-Body dimensions do not include mold flash or 2 ...
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... Fax: +44 1428 751 603 E-mail: sales_uk@melexis.com Germany Am Seestern 8, 40547 Düsseldorf, Germany Phone: +49 211 5360212 Fax: +49 211 5360250 E-mail: sales_de@melexis.com MLX90805 Intelligent Triac Controller MLX902xx Name of Sensor Intelligent Triac Controller Notes ...