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MLX90711 Fiches technique(PDF) 4 Page - List of Unclassifed Manufacturers |
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MLX90711 Fiches technique(HTML) 4 Page - List of Unclassifed Manufacturers |
4 / 12 page MLX90711 Position/movement Sensing Auto-Shutoff MLX90711 Position/movement Sensing Auto-Shutoff Page 4 Rev 1.0 15/Sep/00 Movement Auto Shut-Off time When used as a movement Auto Shut-Off module, several timing options are available. All timings are derived from the on chip oscillator and have thus the same tolerance. If the module is left immobile for a time longer than TASO the auto shut-off function becomes active. There is also an additional time period TADI. This time is valid only in the vertical state and determines the time between shut-off and the start of the led blinking. Position Auto Shut-Off When used as a position Auto Shut-Off module, several timing options are available. All timings are derived from the on chip oscillator and have thus the same tolerance. Three different time delays can be defined: the horizontal shut-off (TH), the vertical shut-off (TV) and the down shut-off (TD). Start up sequence When connecting the asic to the AC line the asic first passes through a startup sequence. The duration of this sequence is 1.25 or 3.75 seconds depending on the duration of phase 1. After the start up test the normal function of the chip begins. This sequence involves the following phases : PHASE 0: The duration is a time period “TS”, which incorporates the Power On Reset time period. This time ‘TS” is typically 0.2 sec. PHASE 1: The duration is 0.5 second or 3 seconds. This can be defined by the mask option SPH1. During this phase the iron heats. The ASO function is not active. The LED is off. The relay is NC and the control voltage is not applied to its coil during this phase. PHASE 2: The duration is 0.75 second. The ASO function is active. The iron is not heating. The control voltage is applied to the coil of the relay during this phase. The LED indicates that the ASO function is active. Some additional information is sent out by the led driver during this phase. This information involves three frequency codes. - the first code is the highest digital clock (20.48kHz). The duration is 250ms. - the second code is the information of the position sensor. The frequency depends on the position of the module: - the third code is the information of the metal mask where the customer specific options are defined. It is coded using one of five frequencies (20kHz, 10kHz, 5kHz, 2.5kHz, 1.25kHz). EMC Thanks to a special algorithm the sensor is made very insensitive to noise and AC line coupling. ESD Precautions Electronic semiconductor products are sensitive to Electro Static Discharge (ESD). Always observe Electro Static Discharge control procedures whenever handling semiconductor products. position LED frequency (KHz) UP 1.28 Between UP and HOR 2.56 HOR 5.12 Between HOR and DO 10.24 DO 20.48 version TD TH TV V1 30” 30” 4’ V2 30” 30” infinity V3 30” 5” 8’ V4 30” 30” 8’ position sensor options version TASO TADI V1 30 sec 0 V2 30 sec 4 min V3 4 min 0 V4 1 min 0 V5 10 min 0 V6 2 min 0 V7 8 min 0 V8 30 sec 8 min Movement sensor options |
Numéro de pièce similaire - MLX90711 |
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Description similaire - MLX90711 |
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