SX8124ISTRT SEMTECH [Semtech Corporation], SX8124ISTRT Datasheet
SX8124ISTRT
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SX8124ISTRT Summary of contents
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... Simplest usage Manual on/off/reset option LED status option Applications Mosquito repellent Odor killers Illuminated decoration Xmas animation Ordering Information Part number SX8124ISTRT - Available in tape and reel only - WEEE/RoHS compliant. Pb-Free and Halogen Free. 1.2 – 2.0 V supply SX8124 ADC DURATION SYNC PHASE DEBOUNCE ...
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ADVANCED COMMUNICATIONS & SENSING TABLE OF CONTENT Section ...
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ADVANCED COMMUNICATIONS & SENSING ELECTRICAL SPECIFICATION 1 Absolute Maximum Ratings Note The Absolute Maximum Ratings, in table below, are stress ratings only. Functional operation of the device at conditions other than those indicated in the Operating Conditions sections of this ...
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ADVANCED COMMUNICATIONS & SENSING 2 Specifications 2.1 Operating Conditions Note Circuit operates within the Supply Voltage Range VDD-VSS = VDDOC. The specification is verified within the Full Spec Voltage Range VDD-VSS = VDDSPEC. Table 2. Operating range Parameter Supply Voltage ...
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ADVANCED COMMUNICATIONS & SENSING Table 4. Circuit power consumption specifications Parameter Supply current in Timer Active mode (outputs no loaded... Supply current in Low Voltage mode Supply current in Safe mode Table 5. Digital IOs specifications Parameter Startup time at ...
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ADVANCED COMMUNICATIONS & SENSING TECHNICAL DESCRIPTION 3 Pinout Table 7. SOIC-8 pinout Pin# Pin name 1 DURATION 2 PHASE 3 START 4 LED Digital output 5 NOUT Digital output 6 VSS Power ground 7 OUT 8 VDD Power positive 1. ...
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ADVANCED COMMUNICATIONS & SENSING 3.1 Digital input levels Input thresholds levels scale with VDD. Inputs have an hysteresis based on a Schmitt trigger schematics. 2 1.5 1 Threshold 0.5 0 0.8 3.2 Pin states Table 8. Pinout vs Power mode ...
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ADVANCED COMMUNICATIONS & SENSING 4 Power Modes VDD 1.05V IOs ON 0.95V IOs OFF 0.9V Timer ON / OFF 0.6V Safe SAFE 0V 4.1 Safe mode The internal system goes in Safe mode as soon as the VDD voltage is ...
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ADVANCED COMMUNICATIONS & SENSING 5 System architecture The system is based on its internal timer to track frequency and to disciminate supply. If there is no input on PHASE pin, the system timing will use ...
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ADVANCED COMMUNICATIONS & SENSING 6 24h Timer 6.1 Operating OUT NOUT start timer The pin START is used to change the OUT (and NOUT) state. A short pulse (below 1 second) on this pin manually changes the OUT and NOUT ...
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ADVANCED COMMUNICATIONS & SENSING 7 Setting duration The measurement of DURATION pin voltage is ratiometric to VDD. The 24h duty cycle on OUT and NOUT pins is equal to the relative voltage on pin DURATION versus the voltage on pin ...
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ADVANCED COMMUNICATIONS & SENSING 8 Timer synchronization on a 50Hz or 60Hz external phase To avoid timing drifts over the time, the SX8124 can be synchronised on a signal from the mains. The SX8124 permanently checks the duration between two ...
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ADVANCED COMMUNICATIONS & SENSING 9 Timer reset 9.1 Reset with the START pin A button can be connected between the BUTTON pin and VSS. Holding START down during 3 seconds or more resets the 24 hours timer and the system. ...
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ADVANCED COMMUNICATIONS & SENSING 9.2 Reset with the DURATION pin Moving the DURATION voltage to 0V and then moving it back to the desired duration will reset the 24 hours timer. This can be done either with a switch in ...
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ADVANCED COMMUNICATIONS & SENSING 10 LED output The LED output is used to indicate the status of the internal system. The LED signal is made of bursts pulses with a period and total duration ...
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ADVANCED COMMUNICATIONS & SENSING 10.3 Not synchronized on phase OUT NOUT LED 250ms 250ms ACS - Revision 2.4 October 2010 © Semtech Corp. 24 hours timer synchronized on 50/60Hz mains Figure 17. Continuous pulses Page 16 SX8124 DATASHEET www.semtech.com/products/ ...
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ADVANCED COMMUNICATIONS & SENSING APPLICATION EXAMPLES 11 Complete application schematics 200 V supply 91 kOhm 91 kOhm 200V 200V 3.9 MOhm 50 uA Figure 18. Application schematics with low-power sleep mode (below 0.3 W) The circuit can be directly powered ...
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ADVANCED COMMUNICATIONS & SENSING 11.1 LED boosters The chip sends bursts to trigger the LED. If the LED is supplied by the regulated voltage VDD it is expected to be connected to a transistor and in parallel with a coil ...
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ADVANCED COMMUNICATIONS & SENSING 11.2 Low cost LED output The schematic on Figure 21 reduce the costs of the BOM. The Rlim, Rb resistors and the transistor hfe must be carefully choosed according to the LED and mains voltage. 100V ...
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ADVANCED COMMUNICATIONS & SENSING MECHANICAL SPECIFICATION 12 Packages 12.1 SOIC-8 12.1.1 Outline drawing 2X E/2 1 ccc C 2X N/2 TIPS aaa C SEATING PLANE C SIDE VIEW NOTES: 1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES). 2. DATUMS ...
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ADVANCED COMMUNICATIONS & SENSING 12.1.2 Land pattern This land pattern is for reference purposes only. Consult your manufacturing group to ensure your company’s manufacturing guidelines are met. X (C) P NOTES: 1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY. ...
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ADVANCED COMMUNICATIONS & SENSING 12.1.3 Marking information &&'' " ACS - Revision 2.4 October 2010 © Semtech Corp. 24 hours timer synchronized on 50/60Hz mains "#$ &&'' ...
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ADVANCED COMMUNICATIONS & SENSING © Semtech 2010 All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation ...