AR101-T is a one-touch capacitive touch sensor control PWM output type stepless dimming IC. AR101-T may be in the presence of media (such as glass, acrylic, plastic, ceramic, etc.) to achieve isolation of cases touch functionality, high security. AR101-T built-in high-precision voltage regulator, power-on reset, low voltage reset, hardware debounces effective measures environmental adaptive algorithm, greatly improve their robustness. AR101-T Applications: Touch LED lamp dimmer, dimming LED touch lamp, touch LED flashlights, remote lamps, or other needs PWM output control touch products. 2, characteristic profile for the user the flexibility to define the characteristics of different products, the product set up a total of four different output modes. The input state before the CS1/CS2 pin power to decide. The following is a detailed functional description: Model 1, without touching the brightness stepless dimming the brightness of the buffer memory without the following: TOUCH touch input corresponding PWM output. When the initial power-up, shut off the lights for the state. Click bright touch (touch duration is less than 550ms), the lights off control can be achieved. One-click touch lights; once again tap the touch, lights out. So the cycle. Light is lit or shut off when no brightness buffer. The initial brightness and illumination lighting is fixed at maximum brightness. Press and touch (touch duration greater than 550ms), you can achieve stepless dimming the lights. A long press touch, light levels gradually increase light levels when released after the release time parked in the corresponding brightness, long press time if more than three seconds, the light levels to achieve maximum brightness does not change; once again press the touch, light levels decreased gradually loosen the light levels when stopped at release time corresponding brightness, long press time if more than three seconds, the light levels after reaching the minimum brightness does not change. So the cycle. Click on touch and touch free to use long press at any time between mutual interference and functional limitations. Touch stepless dimming function mode II, with no brightness with the brightness of the buffer memory is as follows: a model with different is that at the click of a touch lights on and off when the lights slowly by making a smooth transition from a lower brightness to turn on the lights initial brightness, turn off the lights when you click the touch, so that the light from the current brightness gradually reduced until smooth shut off, so as to achieve the brightness slowly changing visual cushioning effect, protect the eyes and vision effect. Other control mode with a three-mode, touch stepless dimming the brightness with the brightness of the memory without buffering as follows: with a different mode, in case the system does not power down again restore the brightness of the lights turn off the lights brightness of the front, the other controls the same way as a model. Mode IV touch with stepless dimming the brightness with the brightness of the memory buffer is as follows: With two different modes, in case the system does not power down, the brightness of the lights once again restored to the brightness of the lights in front, other control methods same mode two. 6, Application Description Description: 5 feet near the IC Cadj refers to adjust the sensitivity of the capacitor capacitance is required near the TCH pin capacitance values ??range 0pF ~ 50pF (capacitance value increases will lead to reduced sensitivity)?. Accuracy of 5% should be selected, small thermal capacitance. R3 means between the touch electrode and touch input pin resistor in series, used to improve anti-jamming capability touch. Are external LDO increase depending on the application conditions. If the power supply ripple ripple exceeds the scope of anti-IC, you need additional external LDO. Such as sudden large load current load, cross-use lithium batteries and an external charger, high frequency on / off the power supply are required to pay attention to the stability of the LED display. Under normal circumstances should be capped at the touch electrode good media coverage and then power. If the power is then covered with the first medium in the 4S touch would be mistaken detected output valid, 4S after touching back to normal again by touching the reset output state.