QT102-ISG Atmel, QT102-ISG Datasheet
QT102-ISG
Specifications of QT102-ISG
Related parts for QT102-ISG
QT102-ISG Summary of contents
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... Power switch replacement in countertop appliances, irons, battery powered toys, heaters, lighting controls, automotive interior lighting, commercial and industrial equipment such as soldering stations and cooking equipment Patents: QTouch™ (patented Charge-transfer method) LQ ™ OUCH OGGLE AVAILABLE OPTIONS T SOT23-6 A -40ºC to +85ºC QT102-ISG - ODE HARGE RANSFER ITH OWER ANAGEMENT OUT 1 6 ...
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... Absolute Maximum Specifications 4 4.2 Recommended Operating Conditions 4 4.3 AC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.4 Signal Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.5 DC Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.6 Mechanical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.7 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.8 Moisture Sensitivity Level (MSL Datasheet Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5.1 Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5.2 Numbering Convention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . QT102_2R3.05_1007 ...
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... Overview 1.1 Introduction The QT102 is a single key device featuring a touch on / touch off (toggle) output with a programmable auto switch-off capability. The QT102 is a digital burst mode charge-transfer (QT) sensor designed specifically for touch controls; it includes all hardware and signal processing functions necessary to provide stable sensing under a wide variety of changing conditions ...
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... However, supply drain is low simple matter to treat the entire controllable load; driving the QT102's V pin directly from another logic gate or a microcontroller port will serve as both power and 'forced recal'. The source resistance of most CMOS gates and microcontrollers are low enough to provide direct power without problems ...
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... The QT102 will track slow changes badly affected by rapid voltage fluctuations highly recommended that a separate voltage regulator be used just for the QT102 to isolate it from power supply shifts caused by other components desired, the supply can be regulated using a Low Dropout (LDO) regulator ...
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... Figure 2.1 Basic Circuit Configuration (active high output, toggle on/off, no auto switch off) VDD 5 VDD RS 3 OUT SNSK CS 4 SNS TIME Rm VSS 2 6 DESCRIPTION Note: bypass capacitor to be tightly wired between VDD and VSS and kept close to QT102 pin 5. 1 Rop 6 QT102_2R3.05_1007 ...
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... OUT Pin ‘On’ (Fast Mode) The QT102 runs in Fast mode when the OUT pin is on. In this mode the device runs at maximum speed at the expense of increased current consumption. The delay between bursts in Fast mode is approximately 2 ...
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... Table 3.5 and Figure 3.6 The delay time is dependent on the RC time constant (Rt x Ct) the output polarity and the supply voltage. Section 3.5.5 gives full details of how to configure the QT102 to have auto-off delay times ranging from 1 minute hours. Output Type K values (42 and 14 ...
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... TIME linked to OUT and TIME linked to ‘off’ respectively, causing the QT102 to use the relevant predefined auto-off delays. 1 OUT The charts in Figures 3.10 and 3.11 show typical values of K versus supply voltage for a QT102 with active high or active 6 TIME low output. Rop Example using the formula to calculate Rt and Ct Requirements: • ...
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... QT102 Active High output, VDD = 4V 4000 Ct=100nF 3500 3000 2500 2000 1500 1000 500 110 130 Tim ing Resistor Rt (K ohm s) QT102 Active High output, VDD = 2V 4000 Ct=100nF Ct=47nF 3500 3000 2500 2000 1500 1000 500 110 130 Tim ing Resistor Rt (K ohm s) QT102_2R3 ...
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... QT102 Active Low output, VDD = 4V Ct=100nF Ct=47nF 500 100 120 140 Tim ing Resistor Rt (K ohm s) QT102 Active Low output, VDD = 2V Ct=100nF Ct=47nF 500 100 120 140 Tim ing Resistor Rt (K ohm s) QT102_2R3.05_1007 Ct=22nF Ct=10nF 160 180 ...
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... VSS 2 Auto off time obtained from 3V chart in Figure 3.13 Figure 3.15 Application 2 +5V 100nF 5 VDD Rs 3 OUT SNSK CS 10k 6.8nF 4 SNS TIME Rm VSS 2 Auto off time obtained from 5V chart in Figure 3.12. 12 DTA143 Rt 47k 2.2k 10nF 10k 6 Rop 2.2k Ct 47nF QT102_2R3.05_1007 Load ...
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... O DD Units Notes ms Cs and Cx dependent µs ±7.5% spread spectrum variation µs ±7.5% spread spectrum variation ms ms Increases with reducing V DD Vdd, Cs and Cx dependent. See ms Section 2.2 for capacitor selection. ms Units Notes secs Will vary with V DD QT102_2R3.05_1007 + +125 C + 0.6) Volts ...
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... Required for proper start-up 0 0.6 V OUT, 4mA sink V OUT, 1mA source ±1 µA 100 pF 14 bits e E ø Inches Min Max Notes 0.110 0.122 0.102 0.118 0.059 0.069 0.035 0.051 0 0.006 - - 0.038 BSC 0.014 0.02 0.014 0.022 0.004 0.008 QT102_2R3.05_1007 Notes ...
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... Marking Note: the part marking shown is for high volume parts. Samples may be shipped marked 02NN. 4.8 Moisture Sensitivity Level (MSL) MSL Rating MSL1 lQ SOT23-6 Part Number QT102-ISG 2QNN (where NN is variable) Peak Body Temperature O 260 C 15 Marking Specifications IPC/JEDEC J-STD-020C ...
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... A minor chip revision (N) is defined as a revision change which does not affect product functionality or datasheet. lQ Part Number QT102_MXN.nn_mmyy N = minor chip revision Prereleased Product [ Released Product]) The value usually only stated for released parts (R). 16 Datasheet Issue Number Datasheet Release Date; (Where mm = Month Year) QT102_2R3.05_1007 ...
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... NOTES QT102_2R3.05_1007 ...
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Tel: +44 (0)23 8056 5600 Fax: +44 (0)23 8045 3939 The specifications set out in this document are subject to change without notice. All products sold and services supplied by QRG are subject to QRG’s Terms and Conditions of ...