QT102

      The QT102 is designed as QTouch Toggle-mode charge-transfer IC with power management functions.It is a single key QTouch chip combining a touch-on / touch-off toggle mode with timeout and timing override functions, oriented especially towards power control of small appliances and battery-operated products.With its tiny low-cost SOT-23 package, the QT102 can suit almost any product needing a power switch or other toggle-mode controlled function.
      Some absolute maximum specifications of QT102 have been concluded into several points as follow.The first one is about its operating temperature which would be from -40 to +85°C.The second one is about its storage temperature which would be from -50 to +125°C.The third one is about its Vdd which would be from 0 to +6.5V.The fourth one is about its max continuous pin current, any control or drive pin which would be ±20mA.The fifth one is about its short circuit duration to ground or Vdd, any pin which would be infinite.The sixth one is about its voltage forced onto any pin which would be from -0.6V to (Vdd + 0.6) Volts.For the recommended operating conditions the first one is about its Vdd which would be from +2.0 to +5.5V.The second one is about its short-term supply ripple+noise which would be ±5mV/s.The third one is about its long-term supply stability which would be ±100mV.The fourth one is about its Cs range which would be from 1 to 50nF.The last one is about its  Cx range which would be from 5 to 20pF.And so on.Some caution should be noted that stresses beyond those listed under 'Absolute Maximum Specifications' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum specification conditions for extended periods may affect device reliability.
      And also for the AC specifications, QT102's recalibration time would be 250 ms.And its charge duration would be 2 s.Its transfer duration would also be 2 s with condition of ±7.5% spread spectrum variation.Its Time between end of burst and start of the next (Fast mode) would be 2.6 ms.Its time between end of burst and start of the next (LP mode) would be 85 ms with condition of increases with reducing Vdd.And so on.For more information please contact us.