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SX8121ISTRT Datasheet(PDF) 1 Page - Semtech Corporation |
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SX8121ISTRT Datasheet(HTML) 1 Page - Semtech Corporation |
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1 / 17 page  www.semtech.com/products/ Page 1 ADVANCED COMMUNICATIONS & SENSING DATASHEET SX8120/21 1V Motor/LED control timer ACS - Revision 2.2 August 2010 © Semtech Corp. Description The SX8120/21 is a series of 1 V motor/LED control timers. The SX8120/21 goes active on the press of a button. The output goes back to sleep on the next button press or after a preset time-out (15 sec or 30 sec on SX8120, 10 minutes or never on the SX8121). The time-out duration and the motor control polarity are pin-selected. When the SX8120/21 is active, it sets its MOTOR control pin to high or low and sends a burst on its LED pin to control a LED or boost a command voltage. One output goes low when VDD is higher than the full charge voltage of an NiMH cell to control a minimal charger. The SX8120/21 controls its IO state starting at 0.6V to facilitate power-up. Features 1 V operation 1 button operation Pin selection of time-out Pin selection of motor polarity Boosted LED control (drives bright white and green LEDS) NiMH cell charger control (allows USB recharge) Applications Electric toothbrushes Electric razors Toys - LED animation LED pointer USB rechargeable Ordering Informations Part number Function Time out SX8120ISTRT 1V motor controller 15 or 30 second SX8121ISTRT 1V motor controller 10 minute or none - Available in tape and reel only - WEEE/RoHS compliant- Pb-Free and Halogen Free. Functional Block Diagram SX8120/21 VDD MOTOR VSS LED TO BUTTON POLARITY NIMH 1.4V Pulse (counter ) Start/Stop + debounce Motor polarity Burst 43kHz VDD 3 - 5V charger Motor 1 – 2 V Alkaline NiMH or NiCd cell 15 sec / 10 min 30 sec / None High Low Start and Stop SX8120 / SX8121 |
Similar Part No. - SX8121ISTRT |
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Similar Description - SX8121ISTRT |
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