SX812X SEMTECH [Semtech Corporation], SX812X Datasheet
SX812X
Related parts for SX812X
SX812X Summary of contents
Page 1
ADVANCED COMMUNICATIONS & SENSING Description The SX8120/ series 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 ...
Page 2
ADVANCED COMMUNICATIONS & SENSING TABLE OF CONTENT Section ...
Page 3
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 ...
Page 4
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 ...
Page 5
ADVANCED COMMUNICATIONS & SENSING Table 4. Circuit power consumption specifications Parameter Supply current in Active mode (outputs no loaded, Motor pin on, LED pin bursting, counting) Supply current in Sleep mode (outputs no loaded, Motor pin off, LED pin tied ...
Page 6
ADVANCED COMMUNICATIONS & SENSING 3 Pinout 3.1 SOIC-8 pinout Table 6. SX8120/21 pinout Pin number Pin name 1 TO Digital input 2 BUTTON Digital input 3 POLARITY Digital input 4 NIMH Digital output 5 LED Digital output 6 VSS Power ...
Page 7
ADVANCED COMMUNICATIONS & SENSING TECHNICAL DESCRIPTION 4 System architecture 4.1 SX8120/21 architecture The system is based on an integrated 5% precise counter. It starts and stops pulses based on the command of a button and times-out after a selectable period ...
Page 8
ADVANCED COMMUNICATIONS & SENSING 4.2 SX8120/21 timing and output The following settings are available on the SX8120/21. Table 7. SX8120/21 settings Part number SX8120 SX8121 The timeout and polarity values are set at chip startup and at each start/stop command. ...
Page 9
ADVANCED COMMUNICATIONS & SENSING 4.3 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 4.4 Debounce on BUTTON pin The BUTTON pin is ...
Page 10
ADVANCED COMMUNICATIONS & SENSING 5 Operating Modes VDD 1.05V Switch ON 0.95V Switch OFF 0.9V POR SAFE 0.6V 1. Typical values. 5.1 Safe Mode The internal system goes in Safe mode as soon as the battery voltage is above 0.6-0.7V. ...
Page 11
ADVANCED COMMUNICATIONS & SENSING APPLICATION EXAMPLES 6 Motor and LED timer 6.1 Start/stop a motor with a 30 seconds time-out. TO BUTTON Start/stop button POLARITY NIMH Figure 5. Pressing the button will start the motor for 30 seconds or until ...
Page 12
ADVANCED COMMUNICATIONS & SENSING 6.3 Start/stop a high current motor with 10 minutes time-out TO BUTTON Start/stop button POLARITY NIMH Figure 7. Pressing the button will start the motor for 10 minutes or until the button is pressed again. ACS ...
Page 13
ADVANCED COMMUNICATIONS & SENSING MECHANICAL SPECIFICATION 7 Packages 7.1 SOIC-8 7.1.1 Outline drawing N 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. ...
Page 14
ADVANCED COMMUNICATIONS & SENSING 7.1.2 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. ...
Page 15
ADVANCED COMMUNICATIONS & SENSING 7.1.3 SX8120 marking information &&'' $ ACS - Revision 2.2 August 2010 © Semtech Corp. "#$ &&'' ! "#$% ! ...
Page 16
ADVANCED COMMUNICATIONS & SENSING 7.1.4 SX8121 marking information %%&& ACS - Revision 2.2 August 2010 © Semtech Corp. "# %%&& ! "# $ ! ...
Page 17
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 ...